Apple Inc. v. Samsung Electronics Co., Ltd. ( 2015 )


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  •   United States Court of Appeals
    for the Federal Circuit
    ______________________
    APPLE INC., A CALIFORNIA CORPORATION,
    Plaintiff-Appellant
    v.
    SAMSUNG ELECTRONICS CO., LTD., A KOREAN
    CORPORATION, SAMSUNG ELECTRONICS
    AMERICA, INC., A NEW YORK CORPORATION,
    SAMSUNG TELECOMMUNICATIONS AMERICA,
    LLC, A DELAWARE LIMITED LIABILITY
    COMPANY,
    Defendants-Appellees
    ______________________
    2014-1802
    ______________________
    Appeals from the United States District Court for the
    Northern District of California in No. 5:12-cv-00630-LHK,
    Judge Lucy H. Koh.
    ______________________
    Decided: September 17, 2015
    ______________________
    WILLIAM F. LEE, Wilmer Cutler Pickering Hale and
    Dorr LLP, Boston, MA, argued for plaintiff-appellant.
    Also represented by SARAH R. FRAZIER, LAUREN B.
    FLETCHER, RICHARD WELLS O’NEILL, MARK CHRISTOPHER
    FLEMING, ANDREW J. DANFORD; JAMES QUARLES, III,
    THOMAS GREGORY SPRANKLING, Washington, DC; MARK D.
    SELWYN, Palo Alto, CA; RACHEL KREVANS, CHRISTOPHER
    2               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    ROBINSON, NATHANIEL BRYAN SABRI, Morrison & Foerster,
    LLP, San Francisco, CA; ERIK JEFFREY OLSON, Palo Alto,
    CA.
    KATHLEEN M. SULLIVAN, Quinn Emanuel Urquhart &
    Sullivan, LLP, New York, NY, argued for defendant-
    appellees. Also represented by WILLIAM ADAMS; BRIAN
    COSMO CANNON, VICTORIA FISHMAN MAROULIS, KEVIN P.B.
    JOHNSON, Redwood Shores, CA; SCOTT L. WATSON,
    MICHAEL THOMAS ZELLER, JOHN B. QUINN, Los Angeles,
    CA; KEVIN ALEXANDER SMITH, San Francisco, CA.
    MIKE MCKOOL, McKool Smith, P.C., Dallas TX, for
    amicus curiae Ericsson Inc. Also represented by
    THEODORE STEVENSON, III; JOHN BRUCE CAMPBELL, JOEL
    LANCE THOLLANDER, Austin, TX.
    JOHN D. HAYNES, Alston & Bird LLP, Atlanta, GA, for
    amici curiae Nokia Corporation, Nokia USA, Inc. Also
    represented by PATRICK J. FLINN; RYAN W. KOPPELMAN,
    East Palo, CA.
    MATTHEW SCHRUERS, Computer & Communications
    Industry Association, Washington, DC, for amicus curiae
    Computer & Communications Industry Association.
    JOSEPH CARL CECERE, JR., Cecere PC, Dallas, TX, for
    amicus curiae The National Black Chamber of Commerce.
    KEVIN MCGANN, White & Case LLP, New York, NY,
    for amici curiae Google Inc., HTC Corporation, HTC
    America, Inc., LG Electronics, Inc., Rackspace Hosting,
    Inc., Red Hat, Inc., SAP America, Inc. Also represented by
    CHRISTOPHER J. GLANCY; WARREN S. HEIT, Palo Alto, CA.
    ______________________
    Before PROST, Chief Judge, MOORE, and REYNA, Cir-
    cuit Judges.
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.             3
    Opinion for the court filed by Circuit Judge MOORE.
    Concurring opinion filed by Circuit Judge REYNA.
    Dissenting opinion filed by Chief Judge PROST.
    MOORE, Circuit Judge.
    Apple Inc. appeals from an order of the district court
    denying Apple’s request for a permanent injunction
    against Samsung Electronics Company, Ltd.; Samsung
    Electronics America, Inc.; and Samsung Telecommunica-
    tions America, LLC (collectively, “Samsung”). We vacate
    and remand for further proceedings.
    BACKGROUND
    In 2007, Apple introduced the iPhone, revolutionizing
    the cell phone market. To develop the iPhone, Apple
    invested billions of dollars over several years—investment
    that came with significant risk. J.A. 10424–26, 10585–98.
    Indeed, Apple executives referred to the iPhone as a “you
    bet your company” product because of the uncertainty
    associated with launching an untested product line in a
    new market. J.A. 10425–26, 10451–52.
    To protect the inventions developed as a result of this
    investment, Apple applied for and received patents cover-
    ing much of the innovative technology incorporated into
    the iPhone. Apple’s patents are numerous and include
    U.S. Patent Nos. 5,946,647; 8,046,721; and 8,074,172, the
    patents at issue in this appeal. Claim 8 of the ’721 patent
    claims a touchscreen device that unlocks when the user
    makes contact with an “unlock image” and moves that
    image to a second, predefined location. ’721 patent col. 19
    l. 51 – col. 20 l. 12. Although seemingly straightforward,
    Apple considered this feature so core to the Apple iPhone
    user experience that it opened the first iPhone ad with
    imagery illustrating the operation of this “slide to unlock”
    feature. J.A. 10433–34, 21014. Claim 9 of the ’647 patent
    4               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    claims a system that detects “data structures” within text
    and generates links to specific actions that can be per-
    formed for each type of detected structure—for example,
    detecting a phone number in a text message and creating
    a link that would allow the user to dial the phone number
    or store it in an address book. ’647 patent col. 7 ll. 52–54,
    fig.7. And claim 18 of the ’172 patent claims a method for
    automatically correcting spelling errors on touchscreen
    devices. ’172 patent col. 12 l. 49 – col. 13 l. 4.
    The iPhone was undisputedly successful. After its re-
    lease, reviewers praised a number of features on the
    iPhone, including its multitouch screen, software, ease of
    use, and overall user experience. Trial Transcript Day 2
    at 436–40, Apple, Inc. v. Samsung Elecs. Co., No. 12-CV-
    00630-LHK (N.D. Cal. 2014) (No. 1622). Other companies
    followed. Samsung, in particular, developed competing
    smartphones. Internal Samsung documents show that
    Samsung “paid close attention to, and tried to incorpo-
    rate” some of Apple’s patented technology, which was
    “indicative of copying by Samsung.” Apple, Inc. v. Sam-
    sung Elecs. Co., No. 12-CV-00630-LHK, 
    2014 WL 7496140
    , at *14 (N.D. Cal. Aug. 27, 2014) (“Injunction
    Order”). Today, Apple and Samsung are fierce competi-
    tors in the smartphone and tablet market. 
    Id. at *8.
        The instant appeal springs from a suit filed by Apple
    against Samsung in February 2012 alleging infringement
    of five patents directed to smartphone and tablet interfac-
    es, including the ’721 patent, the ’647 patent, and the ’172
    patent. The district court held on summary judgment
    that Samsung infringed the ’172 patent. The case pro-
    ceeded to trial, and a jury found that nine Samsung
    products infringed one or both of Apple’s ’647 and ’721
    patents. The jury awarded Apple a total of $119,625,000
    for Samsung’s infringement of the three patents.
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.               5
    Following the verdict, Apple filed a motion seeking a
    permanent injunction that would bar Samsung from, inter
    alia, making, using, selling, developing, advertising, or
    importing into the United States software or code capable
    of implementing the infringing features in its products.
    That is, Apple did not seek to enjoin Samsung’s infringing
    smartphones and tablets, but only the infringing features.
    Moreover, Apple’s proposed injunction included a 30-day
    “sunset period” that would stay enforcement of the injunc-
    tion until 30 days after it was entered by the district
    court, during which Samsung could design around the
    infringing features. This “sunset period” coincided with
    Samsung’s representations at trial that it could remove
    the infringing features from its products quickly and
    easily. Injunction Order at *20–22.
    Despite the narrowness of Apple’s proposed injunction,
    the district court denied Apple’s motion, finding that
    Apple had not shown that it would suffer irreparable
    harm without an injunction. 
    Id. at *23.
    Predicated
    entirely on this finding, the district court reasoned that
    Apple could not establish that monetary damages were
    inadequate. 
    Id. at *19.
    Although the district court found
    that the public interest favored Apple’s request and that
    the narrowness of Apple’s proposed injunction tilted the
    balance of hardships in Apple’s favor, it determined that
    these factors did not overcome Apple’s lack of irreparable
    harm. 
    Id. at *23.
    Apple appealed. We have jurisdiction
    under 28 U.S.C. § 1295(a)(1).
    DISCUSSION
    The Patent Act provides a patentee with the “right to
    exclude others from making, using, offering for sale, or
    selling the [patented] invention.” 35 U.S.C. § 154(a)(1).
    This right has its roots in the U.S. Constitution’s Intellec-
    tual Property Clause, which refers to inventors’ “exclusive
    Right to their respective . . . Discoveries.” U.S. Const. art.
    6                APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    I, § 8, cl. 8. In furtherance of this right to exclude, district
    courts “may grant injunctions in accordance with the
    principles of equity to prevent the violation of any right
    secured by patent, on such terms as the court deems
    reasonable.” 35 U.S.C. § 283. “[N]ot surprising[ly], given
    the difficulty of protecting a right to exclude through
    monetary remedies that allow an infringer to use an
    invention against the patentee’s wishes,” historically
    courts have “granted injunctive relief upon a finding of
    infringement in the vast majority of patent cases.” eBay
    Inc. v. MercExchange, L.L.C., 
    547 U.S. 388
    , 395 (2006)
    (Roberts, C.J., concurring) (emphasis in original).
    A party seeking a permanent injunction must demon-
    strate:
    (1) that it has suffered an irreparable injury;
    (2) that remedies available at law, such as mone-
    tary damages, are inadequate to compensate for
    that injury; (3) that, considering the balance of
    hardships between the plaintiff and defendant, a
    remedy in equity is warranted; and (4) that the
    public interest would not be disserved by a per-
    manent injunction.
    
    Id. at 391
    (majority opinion). The decision to award or
    deny permanent injunctive relief lies within the equitable
    discretion of the district court; these traditional equitable
    principles do not permit the adoption of “certain expan-
    sive principles suggesting that injunctive relief could not
    issue in a broad swath of cases.” 
    Id. at 391
    , 393. The
    district court’s decision is reviewable for abuse of discre-
    tion. 
    Id. at 391
    . A court abuses its discretion when it
    “ma[kes] a clear error of judgment in weighing relevant
    factors or exercise[s] its discretion based upon an error of
    law or clearly erroneous factual findings.” Innogenetics,
    N.V. v. Abbott Labs., 
    512 F.3d 1363
    , 1379 (Fed. Cir. 2008).
    We review the district court’s conclusion as to each eBay
    factor for abuse of discretion and its underlying factual
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.              7
    findings for clear error. i4i Ltd. P’ship v. Microsoft Corp.,
    
    598 F.3d 831
    , 861 (Fed. Cir. 2010).
    A.     Irreparable Harm
    To satisfy the first eBay factor, the patentee must
    show that it is irreparably harmed by the infringement.
    This requires proof that a “causal nexus relates the al-
    leged harm to the alleged infringement.” Apple Inc. v.
    Samsung Elecs. Co., 
    695 F.3d 1370
    , 1374 (Fed. Cir. 2012)
    (“Apple II”). This just means that there must be proof
    that the infringement causes the harm.
    Apple argued to the district court that it was irrepa-
    rably harmed by Samsung’s infringement due to damage
    to its reputation as an innovator, lost market share, and
    lost downstream sales. Injunction Order at *6, *11. The
    district court rejected Apple’s arguments regarding irrep-
    arable harm and found that Apple had not shown that a
    causal nexus connected Samsung’s infringement to these
    alleged injuries. 
    Id. at *8–9,
    *11–16. On appeal, Apple
    argues that the district court erred in a number of ways
    with respect to this eBay factor. First, Apple argues that
    the court should not have required Apple to prove that a
    causal nexus linked Samsung’s infringement to Apple’s
    harms because Apple’s proposed injunction was limited to
    the infringing features alone, not the products as a whole.
    Apple also argues that the court erred when it found that
    Apple did not suffer irreparable harm stemming from its
    sales-based losses and from harm to its reputation as an
    innovator due to Samsung’s infringement. We address
    each of Apple’s arguments in turn.
    1. Causal Nexus Requirement
    Apple claims that “[t]he purpose and substance of the
    causal nexus requirement are necessarily satisfied in this
    circumstance because there is no risk that Apple might be
    ‘leveraging its patent for competitive gain beyond that
    which the inventive contribution and value of the patent
    8               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    warrant.’” Appellant’s Br. 33 (quoting Apple, Inc. v.
    Samsung Elecs. Co., 
    735 F.3d 1352
    , 1361 (Fed. Cir. 2013)
    (“Apple III”) (alterations omitted)). Apple argues that our
    discussion of causal nexus to date has been limited to
    cases where the patentee sought a product-based injunc-
    tion. See Apple 
    III, 735 F.3d at 1352
    ; Apple 
    II, 695 F.3d at 1375
    –76; Apple, Inc. v. Samsung Elecs. Co., 
    678 F.3d 1314
    , 1324 (Fed. Cir. 2012) (“Apple I”). Apple asserts that
    there is no causal nexus requirement when the patentee
    is seeking, as in this case, a narrow injunction, limited to
    the infringing features.
    Apple misunderstands the purpose of the causal nex-
    us requirement. Although we stated in Apple II that the
    causal nexus requirement “informs whether the patent-
    ee’s allegations of irreparable harm are pertinent to the
    injunctive relief analysis, or whether the patentee seeks
    to leverage its patent for competitive gain beyond that
    which the inventive contribution and value of the patent
    warrant,” this statement was incomplete. Apple 
    II, 695 F.3d at 1375
    . The causal nexus requirement ensures that
    an injunction is only entered against a defendant on
    account of a harm resulting from the defendant’s wrongful
    conduct, not some other reason. For example, it ensures
    that an injunction is not entered on account of “irrepara-
    ble harm caused by otherwise lawful competition.” Apple
    
    III, 735 F.3d at 1361
    . Whether a patentee’s irreparable
    harm stems from infringement of its patents is entirely
    independent of the scope of the proposed injunction.
    And while, in the past, we have only had occasion to
    require proof of causal nexus for product-based injunc-
    tions, we have also rejected Apple’s argument that nar-
    rowing the proposed injunction can eliminate the causal
    nexus requirement. In Apple III, we explained that, while
    narrowing a proposed injunction by delaying it so that the
    infringer could design around the infringing features
    would make it “more likely to prevent only infringing
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.              9
    features rather than the sale of entire products,” it did not
    “show that the patentee is irreparably harmed by the
    infringement.” 
    Id. at 1363
    (emphasis in original). The
    same is true here. That Apple’s proposed injunction
    applies only to infringing features says nothing about
    whether Apple is irreparably harmed by Samsung’s
    infringement. The purpose of the causal nexus require-
    ment is to establish the link between the infringement
    and the harm, to ensure that there is “some connection”
    between the harm alleged and the infringing acts. 
    Id. at 1364.
    Thus, a causal nexus linking the harm and the
    infringing acts must be established regardless of whether
    the injunction is sought for an entire product or is narrow-
    ly limited to particular features.
    To be sure, the scope of an injunction plays a role in
    determining whether that injunction is awarded. For
    example, it is crucial when considering the final two
    factors of the eBay test. Here, the district court did not
    err by requiring Apple to satisfy the causal nexus re-
    quirement to show irreparable harm.
    2. Sales-Based Harm
    Apple argues that the district court erred in finding
    that Apple did not suffer irreparable harm due to lost
    market share and lost downstream sales stemming from
    Samsung’s infringement. The district court noted that it
    was undisputed that Apple lost market share and down-
    stream sales to Samsung. Injunction Order at *11. It
    was also undisputed that “Apple and Samsung compete
    directly in the market for smartphones and tablets” and
    that “this competition affects [Apple’s] downstream sales
    because of so-called ‘ecosystem’ effects, where one compa-
    ny’s customers will continue to buy that company’s prod-
    ucts and recommend them to others.” 
    Id. Moreover, the
    court wrote that the record established that “the competi-
    tion between Apple and Samsung was ‘fierce’” and that
    “Apple was Samsung’s ‘largest smartphone competitor’ in
    10               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    the U.S. market.” 
    Id. Because “[w]here
    two companies
    are in competition against one another, the patentee
    suffers the harm—often irreparable—of being forced to
    compete against products that incorporate and infringe its
    own patented inventions,” 
    id. (quoting Douglas
    Dynamics,
    LLC v. Buyers Prods. Co., 
    717 F.3d 1336
    , 1345 (Fed. Cir.
    2013)), the court found that “[t]he presence of direct
    competition between Apple and Samsung in the
    smartphone market weighs in favor of finding irreparable
    harm,” 
    id. Despite these
    findings, the district court found that
    Apple failed to demonstrate irreparable harm due to lost
    sales because it failed to show a causal nexus between the
    infringement and the lost sales. That is, according to the
    district court, Apple did not show that the infringing
    features “drive consumer demand for Samsung’s infring-
    ing products.” 
    Id. at *13.
    Here, the district court erred.
    When a patentee alleges it suffered irreparable harm
    stemming from lost sales solely due to a competitor’s
    infringement, a finding that the competitor’s infringing
    features drive consumer demand for its products satisfies
    the causal nexus inquiry. In that case, the entirety of the
    patentee’s alleged harm weighs in favor of injunctive
    relief. Such a showing may, however, be nearly impossi-
    ble from an evidentiary standpoint when the accused
    devices have thousands of features, and thus thousands of
    other potential causes that must be ruled out. Nor does
    the causal nexus requirement demand such a showing.
    Instead, it is a flexible analysis, as befits the discretionary
    nature of the four-factor test for injunctive relief. We
    have explained that proving a causal nexus requires the
    patentee to show “some connection” between the patented
    features and the demand for the infringing products.
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.            11
    Apple 
    III, 735 F.3d at 1364
    . 1 Thus, in a case involving
    phones with hundreds of thousands of available features,
    it was legal error for the district court to effectively re-
    quire Apple to prove that the infringement was the sole
    cause of the lost downstream sales. The district court
    should have determined whether the record established
    that a smartphone feature impacts customers’ purchasing
    decisions. Apple 
    III, 735 F.3d at 1364
    . Though the fact
    that the infringing features are not the only cause of the
    lost sales may well lessen the weight of any alleged irrep-
    arable harm, it does not eliminate it entirely. To say
    1     As we explained in Apple III, “some connection”
    between the patented feature and consumer demand for
    the products may be shown in “a variety of ways,” includ-
    ing, for example, “evidence that a patented feature is one
    of several features that cause consumers to make their
    purchasing decisions,” “evidence that the inclusion of a
    patented feature makes a product significantly more
    desirable,” and “evidence that the absence of a patented
    feature would make a product significantly less desira-
    ble.” 
    Id. These examples
    do not delineate or set a floor on
    the strength of the connection that must be shown to
    establish a causal nexus; rather, they are examples of
    connections that surpass the minimal connection neces-
    sary to establish a causal nexus. Apple III included a
    fourth example to demonstrate a connection that does not
    establish a causal nexus—where consumers are only
    willing “to pay a nominal amount for an infringing fea-
    ture.” 
    Id. at 1368
    (using example of $10 cup holder in
    $20,000 car). There is a lot of ground between the exam-
    ples that satisfy the causal nexus requirement and the
    example that does not satisfy this requirement. The
    required minimum showing lies somewhere in the middle,
    as reflected by the “some connection” language.
    12              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    otherwise would import a categorical rule into this analy-
    sis.
    The right to exclude competitors from using one’s
    property rights is important. And the right to maintain
    exclusivity—a hallmark and crucial guarantee of patent
    rights deriving from the Constitution itself—is likewise
    important. “Exclusivity is closely related to the funda-
    mental nature of patents as property rights.” Douglas
    
    Dynamics, 717 F.3d at 1345
    . And the need to protect this
    exclusivity would certainly be at its highest when the
    infringer is one’s fiercest competitor. Essentially barring
    entire industries of patentees—like Apple and other
    innovators of many-featured products—from taking
    advantage of these fundamental rights is in direct contra-
    vention of the Supreme Court’s approach in 
    eBay. 547 U.S. at 393
    (“[E]xpansive principles suggesting that
    injunctive relief could not issue in a broad swath of cas-
    es . . . cannot be squared with the principles of equity
    adopted by Congress.”).
    The district court thus erred when it required Apple
    to prove that the infringing features were the exclusive or
    predominant reason why consumers bought Samsung’s
    products to find irreparable harm. See Apple 
    III, 735 F.3d at 1364
    (explaining that “[c]onsumer preferences are too
    complex—and the principles of equity are too flexible” for
    a patentee to have to show that patented features are the
    “one and only reason for consumer demand”). Instead, the
    district court should have considered whether there is
    “some connection” between the patented features and the
    demand for Samsung’s products. 
    Id. That is,
    the district
    court should have required Apple to show that the pa-
    tented features impact consumers’ decisions to purchase
    the accused devices. 
    Id. (explaining that
    causal nexus can
    be shown with evidence that “a patented feature is one of
    several features that cause consumers to make their
    purchasing decisions”).
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.             13
    The record here establishes that these features do in-
    fluence consumers’ perceptions of and desire for these
    products. The district court wrote that there was evi-
    dence that Samsung valued the infringing features,
    including evidence that Samsung “paid close attention to,
    and tried to incorporate, certain iPhone features,” which
    was “indicative of copying.” Injunction Order at *14. This
    included evidence that Samsung had copied the “slide to
    unlock” feature claimed in the ’721 patent, such as “inter-
    nal Samsung documents showing that Samsung tried to
    create unlocking designs based on the iPhone,” 
    id. (citing PX119
    (J.A. 20197), PX121 (J.A. 20274, 20347)); testimo-
    ny from a Samsung engineer about “the value of designs
    for unlocking,” 
    id. (citing Tr.
    at 1729:3–11 (J.A. 11735:3–
    11)); and “Samsung e-mails noting that certain carriers
    disapproved of the noninfringing ‘circle lock’ alternative,”
    
    id. (citing PX181
    at 5 (J.A. 21019)). The district court also
    noted that the jury found that Samsung willfully in-
    fringed the ’721 patent. 
    Id. For the
    ’647 patent, evidence
    of copying included “an internal Samsung report that
    shows iPhone screens and notes the ‘[n]eed to improve
    usability by providing Links for memo contents,’” 
    id. (citing PX146
    at 37 (J.A. 20584)), and “an internal Sam-
    sung document that copied a figure from the publication
    of one of the ’647 patent’s inventors,” 
    id. (citing PX107
    at
    52 (J.A. 20063)); see also J.A. 20003 (inventor’s publica-
    tion). And for the ’172 patent, Apple presented evidence
    that users criticized Samsung’s noninfringing keyboards
    and word-correction designs. Injunction Order at *14
    (citing PX168 at 4 (J.A. 20985), PX169 at 4 (J.A. 21006),
    PX219 at 104 (J.A. 21318)); see also J.A. 10700–02 (ex-
    plaining that a Samsung carrier found Samsung’s non-
    infringing word-correction method “jarring,” which Sam-
    sung resolved by going to the word-correction method
    described in the ’172 patent). Finally, the district court
    held that Apple had shown that it too found the “slide to
    unlock” feature claimed in the ’721 patent valuable to
    consumers. Injunction Order at *15 (citing Tr. at 432:20–
    14                APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    433:18 (J.A. 10433:20–10434:18); Tr. at 600:23–601:15
    (J.A. 10602:23–10603:15)); see also J.A. 21014 (Apple’s
    first iPhone ad, which opened with imagery of the “slide
    to unlock” feature). The district court rejected this evi-
    dence as insufficient to establish the requisite causal
    nexus. Injunction Order at *13–15 (citing Apple 
    I, 678 F.3d at 1327
    –28; Apple 
    III, 735 F.3d at 1367
    ). In doing so,
    the district court relied on our previous statements that
    copying is not sufficient to show causal nexus:
    While the evidence that Samsung’s employees be-
    lieved it to be important to incorporate the pa-
    tented feature into Samsung’s products is
    certainly relevant to the issue of nexus between
    the patent and market harm, it is not dispositive.
    That is because the relevant inquiry focuses on
    the objective reasons as to why the patentee lost
    sales, not on the infringer’s subjective beliefs as to
    why it gained them (or would be likely to gain
    them).
    Apple 
    I, 678 F.3d at 1327
    –28.
    The district court was correct that evidence of copying
    does not, by itself, establish a causal nexus. But that does
    not make the evidence wholly irrelevant. Here, too, we
    must avoid categorical rules. Where the precise question
    is about consumer preferences and buying choices, the
    strength and weight to be given to such evidence is to be
    determined on a case-by-case basis based on what the
    evidence indicates. Sometimes this evidence will have
    little or no probative value, for example, if the record
    contains evidence that the infringer’s belief may be at
    odds with consumer preferences. But here, Apple’s evi-
    dence of copying established a further link between Ap-
    ple’s and Samsung’s subjective beliefs and consumers’
    perceptions, thereby strengthening a causal nexus and
    irreparable harm to Apple. The dissent criticizes Apple’s
    evidence of copying as “lack[ing] any connection to the
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.            15
    critical details that define the patented features.” Dissent
    10. The district court made no such findings. Injunction
    Order at *14. The district court acknowledged that Apple
    presented evidence that carriers (’721 patent) and users
    (’172 patent), not just Samsung, preferred and valued the
    infringing features and wanted them in Samsung phones.
    
    Id. It also
    acknowledged that Apple presented evidence
    that carriers or users disapproved of Samsung’s alterna-
    tive to the infringing features. The court failed to appre-
    ciate, however, that this evidence did not just
    demonstrate that Samsung valued the patented features,
    but also that its carriers or users valued the features.
    The district court further correctly concluded that the ’721
    patent’s features are valuable to Apple’s consumers. 
    Id. at *15.
    It was legal error for the district court to reject
    such strong evidence in this case because Apple presented
    evidence showing that Samsung’s subjective beliefs are
    indicative of consumers’ perceptions of the infringing
    features. Given the strength of the evidence of copying
    and Samsung’s professed belief in the importance of the
    patented features as a driver of sales, and the evidence
    that carriers or users also valued and preferred phones
    with these features, the district court erred by disregard-
    ing this evidence, which further establishes a causal
    nexus and Apple’s irreparable harm.
    Furthermore, this record contained Dr. John Hauser’s
    conjoint study, which established that consumers would
    not have purchased a Samsung phone if it lacked the
    patented features, that they valued these features, and
    that they were willing to pay considerably more for a
    phone that contained these features. Injunction Order at
    *12; see also J.A. 20491–98 (survey results showing that
    many respondents would not purchase a Samsung phone
    without the infringing features); J.A. 20539 (results
    showing that respondents were willing to pay more for
    devices that included the infringing features). Based on
    the results, Dr. Hauser concluded that “[t]he features that
    16              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    were enabled by the patents at issue in this case have a
    measurable impact on consumer demand for Samsung
    telephones, smartphones, and tablets.” J.A. 11130. The
    district court appeared to disregard the Hauser study,
    writing that “[t]he weight of the evidence shows that [the
    Hauser study] fails to demonstrate that the features
    claimed in the ’647, ’721, and ’172 patents drive consumer
    demand for Samsung’s infringing products.” Injunction
    Order at *13. The district court’s decision seems to be
    predicated on an incorrect understanding of the nature of
    the causal nexus requirement, as discussed above.
    In short, the record establishes that the features
    claimed in the ’721, ’647, and ’172 patents were important
    to product sales and that customers sought these features
    in the phones they purchased. While this evidence of
    irreparable harm is not as strong as proof that customers
    buy the infringing products only because of these particu-
    lar features, it is still evidence of causal nexus for lost
    sales and thus irreparable harm. Apple loses sales be-
    cause Samsung products contain Apple’s patented fea-
    tures. The district court therefore erred as a matter of
    law when it required Apple to show that the infringing
    features were the reason why consumers purchased the
    accused products. Apple does not need to establish that
    these features are the reason customers bought Samsung
    phones instead of Apple phones—it is enough that Apple
    has shown that these features were related to infringe-
    ment and were important to customers when they were
    examining their phone choices. On this record, applying
    the correct legal standard for irreparable harm, Apple has
    established irreparable harm. The strength of its evi-
    dence of irreparable harm goes to this factor’s weight
    when assessing the propriety of the injunction. Apple
    established that customers wanted, preferred, and would
    pay extra for these features. Apple established that
    Samsung believed these features were important and
    copied them. The evidence establishes that Samsung’s
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.             17
    carriers and users wanted these features on phones. The
    evidence establishes that Apple believed these features
    were important to customer demand. The evidence estab-
    lishes that Samsung was Apple’s biggest rival, its fiercest
    competitor. It was clear error in the face of this evidence
    for the district court to conclude that Apple failed to
    establish “some connection” between the patented fea-
    tures and demand for the infringing products. Apple did
    not establish that that these features were the exclusive
    or significant driver of customer demand, which certainly
    would have weighed more heavily in its favor. We con-
    clude that this factor weighs in favor of granting Apple’s
    injunction.
    B.     Inadequate Remedy at Law
    The second eBay factor is whether “remedies available
    at law, such as monetary damages, are inadequate to
    compensate” for the irreparable harm suffered by the
    
    patentee. 547 U.S. at 391
    .
    The district court found that Apple’s sales-based loss-
    es were difficult to quantify. Injunction Order at *18. In
    support, the district court cited testimony by Mr. Phil
    Schiller, an Apple marketing executive; testimony by
    Apple’s damages expert; and its own past findings on the
    subject in the context of the Apple-Samsung litigation.
    
    Id. at *17.
    We agree with the district court’s analysis.
    Sales lost by Apple to Samsung are difficult to quantify
    due to the “ecosystem effect”—that is, the effect the sale of
    a single product can have on downstream sales of accesso-
    ries, computers, software applications, and future
    smartphones and tablets. Id.; see also J.A. 10449–50. In
    addition to the downstream sales to the individual cus-
    tomer, Mr. Schiller testified that individual customers
    have a “network effect,” by which they advertise Apple’s
    product to their friends, family, and colleagues. J.A.
    10449–50. Thus, the loss by Apple of a single smartphone
    or tablet customer may have a far-reaching impact on
    18              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    Apple’s future revenues. Because of its variable and
    uncertain nature, this loss is very difficult to calculate.
    Despite its finding that Apple’s sales-based losses
    were difficult to quantify, the district court nonetheless
    found that this factor weighed against injunctive relief
    based on its determination that Apple had failed to estab-
    lish any irreparable harm. Injunction Order at *19.
    Apple argues that if we reverse the court on that point,
    this factor will also tip in its favor. We agree. Because
    we find the district court’s finding that Apple did not
    suffer any irreparable harm stemming from its losses of
    sales was predicated on a legal error, it also erred when it
    found that this factor weighs against an injunction. This
    factor strongly weighs in favor of Apple because, as the
    district court found, the extent of Apple’s downstream and
    network effect losses are very difficult to quantify.
    C.     Balance of Hardships
    To satisfy the third eBay factor, the patentee must
    show that the balance of hardships weighs in its 
    favor. 547 U.S. at 391
    . This factor “assesses the relative effect of
    granting or denying an injunction on the parties.” 
    i4i, 598 F.3d at 862
    . Because “Apple’s proposed injunction targets
    only specific features, not entire products” and contains a
    30-day “sunset provision,” Injunction Order at *20–21,
    and because “Samsung repeatedly told the jury that
    designing around the asserted claims of the three patents
    at issue would be easy and fast,” 
    id. at *22,
    the district
    court found that Samsung would “not face any hardship”
    from Apple’s proposed injunction, 
    id. at *19.
    The court,
    reasoning that “requiring a patentee to ‘compete against
    its own patented invention . . . places a substantial hard-
    ship’ on the patentee,” found that Apple would suffer
    hardship without an injunction. 
    Id. at *22
    (quoting
    Robert Bosch LLC v. Pylon Mfg. Corp., 
    659 F.3d 1142
    ,
    1156 (Fed. Cir. 2011)). The court therefore found that
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.             19
    this factor weighed in Apple’s favor. We agree. This
    factor strongly favors granting Apple the relief requested.
    Samsung argues that the district court erred in find-
    ing the balance of hardships favors the entry of an injunc-
    tion. It argues that Apple will not suffer any hardship in
    the absence of an injunction because the patented fea-
    tures are minor components in a complex device. Sam-
    sung argues that it and its carriers, retailers, and
    customers would suffer substantial hardship if an injunc-
    tion issued, particularly because the proposed injunction
    would extend to unadjudicated products with software
    that is “capable of implementing” the infringing features
    or other features “not colorably different.” Appellees’ Br.
    55 & n.14 (quoting J.A. 2698).
    The district court did not abuse its discretion in find-
    ing the balance of hardships favors an injunction; to the
    contrary, this factor strongly weighs in favor of an injunc-
    tion. Samsung’s infringement harmed Apple by causing
    lost market share and lost downstream sales and by
    forcing Apple to compete against its own patented inven-
    tion, which “places a substantial hardship” on a patentee,
    especially here where it is undisputed that it is essential-
    ly a two-horse race. 
    Bosch, 659 F.3d at 1156
    . Further-
    more, as the district court found, Apple’s proposed
    injunction was narrowly tailored to cause no harm to
    Samsung other than to deprive it of the ability to continue
    to use Apple’s patented features. Injunction Order at
    *21–22. The court has overseen the Apple-Samsung
    litigation from the beginning and has worked extensively
    with parties and their counsel. Given the court’s familiar-
    ity with the infringing products, the parties, and their
    history of litigation, it is best-positioned to determine the
    impact of the scope of the injunction on the parties.
    Furthermore, the district court presided over a trial in
    which Samsung’s witnesses and counsel assured the jury
    that design-arounds to the infringing features would be
    “simple or already exist.” 
    Id. at *20.
    And Samsung
    20              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    asserted at oral argument that none of the products it
    currently sells practice the ’721 patent or the ’172 patent,
    and that only a single product practices the ’647 patent.
    Oral     Argument        at   31:10–31:48,   available    at
    http://oralarguments.cafc.uscourts.gov/default.aspx?fl=20
    14-1802.mp3. As we wrote in Douglas Dynamics, when
    the infringer “ha[s] a non-infringing alternative which it
    could easily deliver to the market, then the balance of
    hardships would suggest that [it] should halt infringe-
    ment and pursue a lawful course of market 
    conduct.” 717 F.3d at 1345
    . On this record, it is clear—Samsung will
    suffer relatively little harm from Apple’s injunction, while
    Apple is deprived of its exclusivity and forced to compete
    against its own innovation usurped by its largest and
    fiercest competitor.       Given the narrow feature-based
    nature of the injunction, this factor strongly weighs in
    favor of granting Apple this injunction.
    D.     Public Interest
    The fourth eBay factor requires the patentee to show
    that “the public interest would not be disserved by a
    permanent 
    injunction.” 547 U.S. at 391
    . The district
    court found that the public interest “favor[s] the enforce-
    ment of patent rights to promote the encouragement of
    investment-based risk,” particularly where, as here, the
    patentee’s proposed injunction is narrow in scope and
    includes a sunset provision limiting the impact of the
    injunction on consumers. Injunction Order at *22–23
    (quotation marks omitted). The court also noted that “an
    injunction may prompt introduction of new alternatives to
    the patented features.” 
    Id. at *23.
    It therefore concluded
    that the public interest factor favors Apple.
    Samsung argues that the district court erred in find-
    ing the public interest weighs in favor of an injunction.
    Samsung also argues that the proposed injunction, while
    styled as narrow, is actually quite broad and would lead
    to the removal of products from store shelves, which it
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.            21
    argues would harm the public interest. Samsung also
    argues that the public has a strong interest in competition
    and the resulting variety of product choices, and that the
    cost of administering this injunction would be great.
    The district court did not abuse its discretion in find-
    ing that the public interest favors an injunction. Indeed,
    the public interest strongly favors an injunction. Sam-
    sung is correct—the public often benefits from healthy
    competition. However, the public generally does not
    benefit when that competition comes at the expense of a
    patentee’s investment-backed property right. To conclude
    otherwise would suggest that this factor weighs against
    an injunction in every case, when the opposite is generally
    true. We base this conclusion not only on the Patent Act’s
    statutory right to exclude, which derives from the Consti-
    tution, but also on the importance of the patent system in
    encouraging innovation. Injunctions are vital to this
    system. As a result, the public interest nearly always
    weighs in favor of protecting property rights in the ab-
    sence of countervailing factors, especially when the pa-
    tentee practices his inventions. “[T]he encouragement of
    investment-based risk is the fundamental purpose of the
    patent grant, and is based directly on the right to ex-
    clude.” Sanofi-Synthelabo v. Apotex, Inc., 
    470 F.3d 1368
    ,
    1383 (Fed. Cir. 2006) (quotation marks omitted).
    This is not a case where the public would be deprived
    of Samsung’s products. Apple does not seek to enjoin the
    sale of lifesaving drugs, but to prevent Samsung from
    profiting from the unauthorized use of infringing features
    in its cellphones and tablets. Again, Apple seeks only a
    narrow feature-based injunction commensurate in scope
    with its monopoly rights. And the evidence of record is
    that Samsung can effect the removal of the patented
    features without recalling any products or disrupting
    customer use of its products. Apple has not attempted to
    expand the scope of its monopoly. Given the important
    public interest in protecting patent rights, the nature of
    22               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    the technology at issue, and the limited nature of the
    injunction, this factor strongly favors an injunction.
    CONCLUSION
    The district court erred when it found the first two
    eBay factors weighed against an injunction. Although the
    evidence may not make a strong case of irreparable harm,
    Apple has satisfied the causal nexus requirement and
    therefore established irreparable harm. 2 Apple has also
    established that the harm it will suffer is not easily
    compensable at law. Moreover, as the district court
    found, the balance of hardships and public interest weigh
    strongly in favor of an injunction. Given this, the district
    court abused its discretion when it did not enjoin Sam-
    sung’s infringement. If an injunction were not to issue in
    this case, such a decision would virtually foreclose the
    possibility of injunctive relief in any multifaceted, multi-
    function technology. We vacate the district court’s order
    denying Apple’s proposed injunction and remand for
    further proceedings consistent with this opinion.
    VACATED AND REMANDED
    COSTS
    Each party shall bear its own costs.
    2  Because we hold that the district court erred
    when it found that Apple did not suffer irreparable harm
    stemming from its sales-based losses, see supra at 9–17,
    and that on this record and consistent with the other
    holdings of the district court, this harm is sufficient to
    justify an injunction, see infra at 22, we do not reach the
    issue of whether Apple also suffered irreparable reputa-
    tional harm.
    United States Court of Appeals
    for the Federal Circuit
    ______________________
    APPLE INC., A CALIFORNIA CORPORATION,
    Plaintiff-Appellant
    v.
    SAMSUNG ELECTRONICS CO., LTD., A KOREAN
    CORPORATION, SAMSUNG ELECTRONICS
    AMERICA, INC., A NEW YORK CORPORATION,
    SAMSUNG TELECOMMUNICATIONS AMERICA,
    LLC, A DELAWARE LIMITED LIABILITY
    COMPANY,
    Defendants-Appellees
    ______________________
    2014-1802
    ______________________
    Appeals from the United States District Court for the
    Northern District of California in No. 5:12-cv-00630-LHK,
    Judge Lucy H. Koh.
    ______________________
    REYNA, Circuit Judge, concurring.
    The Constitution bestows on Congress the power to
    secure inventors’ “exclusive Right[s]” to their inventions.
    U.S. Const. Art. I, § 8. The utility of this power would,
    according to James Madison, “scarcely be questioned” as
    the rights to inventions “belong to the inventors.” The
    Federalist No. 43, p. 214 (L. Goldman ed. 2008) (J. Madi-
    son). In the years since Congress first exercised this
    power and enacted the first Patent Act in 1790, courts
    2               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    have varied in how they have protected the right to ex-
    clude, first preferring damages, then granting injunctions
    routinely, and recently rigorously applying the irrepara-
    ble injury factor of the four-part eBay test. The court
    today correctly concludes that Apple, Inc. is entitled to a
    narrow, feature-based injunction against Samsung 1
    because Samsung’s infringement will likely cause Apple
    to lose downstream sales. I agree with this decision and
    note that it leaves open the door for obtaining an injunc-
    tion in a case involving infringement of a multi-patented
    device, a door that appears near shut under current law.
    I write to add that I believe Apple satisfied the irrepa-
    rable injury factor based on Samsung’s infringement on
    Apple’s right to exclude and based on the injury that the
    infringement causes Apple’s reputation as an innovator.
    There is no dispute that Samsung has infringed Apple’s
    right to exclude and, absent an injunction, it will likely
    continue to do so. I believe that such a finding satisfies
    the irreparable harm requirement because the infringe-
    ment is, in this case, “irreparable.” On reputational
    injury, the roles are reversed: it is undisputed that such
    an injury is irreparable; the question is whether this
    injury will likely occur. As I explain below, I believe that
    the record here—particularly the toe-to-toe competition
    between Apple and Samsung, Apple’s reputation as an
    innovator, and the importance of the patents-in-suit to
    that reputation—establishes that Apple will likely suffer
    irreparable harm to its reputation.
    1 I refer to Samsung Electronics Company, Ltd.;
    Samsung Electronics America, Inc.; and Samsung Tele-
    communications America, LLC collectively as “Samsung.”
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.              3
    I.     Injury to The Right to Exclude is an “Injury”
    That is, in this Case, “Irreparable.”
    A patentee’s rights spring forth from the Constitution,
    which gives Congress the power to “secur[e] for limited
    Times to . . . Inventors the exclusive Right to their respec-
    tive . . . Discoveries.” U.S. Const. Art. I, § 8. Under this
    grant of authority, Congress has given patentees “monop-
    oly rights.” F.T.C. v. Actavis, Inc., 
    133 S. Ct. 2223
    , 2240
    (2013) (Roberts, C.J., dissenting). That is, the patentee
    obtains the right to invoke the “State’s power” to prevent
    others from engaging in certain activities. Zenith Radio
    Corp. v. Hazeltine Research, Inc., 
    395 U.S. 100
    , 135
    (1969). Those activities include “making, using, offering
    for sale, or selling the invention throughout the United
    States or importing the invention into the United States,”
    and if the invention is a process, “using, offering for sale
    or selling throughout the United States, or importing into
    the United States, products made by that process.” 35
    U.S.C. § 154(a)(1).
    These monopoly rights do not necessarily entitle a pa-
    tentee to injunctive relief. At least as far back as the 17th
    century, courts have required a showing of “irreparable”
    injury before granting injunctive relief. See Laycock,
    Douglas, Death of the Irreparable Injury Rule, 103 Harv.
    L. Rev. 687, 699 (1990) (“Laycock”). After Congress
    passed the first Patent Act in 1790 up until 1819, Ameri-
    can courts generally found that the patent statutes pro-
    vided damages as the remedy for patent infringement,
    meaning that infringement of patent rights did not consti-
    tute an irreparable injury. See Root v. Lake Shore & M.S.
    Ry. Co., 
    105 U.S. 189
    , 192 (1881); Frankfurter, Felix, The
    Business of the Supreme Court of the United States — A
    Study in the Federal Judicial System, 39 Harv. L. Rev.
    587, 616–17 (1926). In 1819, Congress specifically grant-
    ed courts the authority to grant injunctions in cases
    involving patent infringement. 
    Root, 105 U.S. at 192
    .
    From this point until the 20th century, courts granted
    4               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    injunctions in patent cases where the defendant was
    shown to be likely to continue to infringe. Robinson,
    William C., The Law of Patents for Useful Inventions, §
    1088 (1890); Lipscomb, Ernest Bainbridge, III, Walker on
    Patents, § 25:33 (1988). In the early 20th century, courts
    went further, holding that the default rule was that
    monetary damages were insufficient to compensate for
    infringement on the right to exclude. E.g., Am. Code Co.
    v. Bensinger, 
    282 F. 829
    , 834 (2d Cir. 1922) (“In cases of
    infringement of copyright, an injunction has always been
    recognized as a proper remedy, because of the inadequacy
    of the legal remedy.”) Our court followed suit, holding
    that where “validity and continuing infringement have
    been clearly established,” irreparable injury is presumed.
    Smith Intern., Inc. v Hughes Tool Co., 
    718 F.2d 1573
    ,
    1581 (Fed. Cir. 1983). We eventually created a default
    rule that an injunction would issue when infringement
    has been established, absent a “sound” reason for denying
    it. Richardson v. Suzuki Motor Co., 
    868 F.2d 1226
    , 1246–
    47 (Fed. Cir. 1989), cert. denied, 
    493 U.S. 853
    (1989).
    In eBay Inc. v. MercExchange, L.L.C., the Supreme
    Court rejected that default rule, holding that a plaintiff
    seeking a permanent injunction must satisfy the four-
    factor test historically employed by courts of equity,
    including establishing irreparable injury. 
    547 U.S. 388
    ,
    391, 393 (2008). Though we read eBay to overrule our
    presumption of irreparable injury, we cautioned that
    courts should not necessarily “ignore the fundamental
    nature of patents as property rights granting the owner
    the right to exclude.” Robert Bosch LLC v. Pylon Mfg.
    Corp., 
    659 F.3d 1142
    , 1149 (Fed Cir. 2011). Yet our
    recent cases have done precisely that, ignoring the right
    to exclude in determining whether to issue an injunction.
    Indeed, our opinions in the most recent cases between
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.             5
    Apple and Samsung do not even mention the right to
    exclude as a possible basis for injunctive relief. 2
    I believe that this recent trend extends eBay too far.
    Infringement on the right to exclude is, in my view, an
    “injury” that is sometimes irreparable. An “injury” is not
    limited to tangible violations but rather encompasses
    “violation[s] of another's legal right, for which the law
    provides a remedy; a wrong or injustice.” Injury, Black's
    Law Dictionary (10th ed. 2014) (emphasis added). Courts
    have routinely granted injunctions when constitutional
    rights are at issue. 11A Charles Alan Wright et al. Fed-
    eral Practice & Procedure § 3942 (3d ed.). Nor is this
    approach limited to rights derived from the Constitu-
    tion—courts have granted injunctions against private
    parties based on various statutorily-granted rights. See,
    e.g., E.E.O.C. v. Cosmair, Inc., L'Oreal Hair Care Div.,
    
    821 F.2d 1085
    , 1090 (5th Cir. 1987) (employment discrim-
    ination); Park Vill. Apartment Tenants Ass’n v. Mortimer
    Howard Trust, 
    636 F.3d 1150
    , 1152 (9th Cir. 2011) (statu-
    tory housing rights); Armstrong v. Schwarzenegger, 
    622 F.3d 1058
    (9th Cir. 2010) (ADA rights).
    There is no reason to treat patent rights differently.
    As the majority aptly puts it, the right to exclude is
    “important.” Maj. Op. at 12. The patentee earned this
    right by disclosing a useful invention to the public. See 35
    U.S.C. §§ 101, 112. Madison recognized the balance
    between the right to exclude and the benefit extended to
    society by the disclosure included in a patent as a “public
    good.” The Federalist No. 43, p. 214 (L. Goldman ed.
    2008) (J. Madison). When courts do not force the public to
    2    See Apple Inc. v. Samsung Elecs. Co., 
    678 F.3d 1314
    (Fed. Cir. 2012) (“Apple I”); Apple Inc. v. Samsung
    Elecs. Co., 
    695 F.3d 1370
    (Fed. Cir. 2012) (“Apple II”);
    Apple Inc. v. Samsung Elecs. Co., 
    735 F.3d 1352
    (Fed. Cir.
    2013) (“Apple III”).
    6                APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    hold up its end of the bargain they inhibit rather than
    “promote” the “progress of the useful arts.” U.S. Const.
    Art. I, § 8. Indeed, Chief Justice Roberts’s concurrence in
    eBay, discussed in more detail below, implicitly acknowl-
    edges that infringement on the right to exclude is an
    injury for which an injunction can be granted. 
    eBay, 547 U.S. at 395
    .
    Such an injury can be irreparable. In this context,
    “irreparable” does not mean that the injury cannot be
    remedied at all. If that were the case, the plaintiff would
    not have standing to sue. Lujan v. Defenders of Wildlife,
    
    504 U.S. 555
    , 561 (1992). What makes an injury “irrepa-
    rable” is that legal damages, i.e., monetary relief, cannot
    remedy the harm. See Laycock at 694. Courts have
    provided several reasons why this may be the case, in-
    cluding instances in which injury is repeated or threat-
    ened, substitutes are difficult to obtain, or damages are
    difficult to measure. See, e.g., Mark P. Gergen et al., The
    Supreme Court’s Accidental Revolution? The Test for
    Permanent Injunctions, 112 Colum. L. Rev. 203, 237
    (2012) (“Gergen”).
    The last of these concerns was the reason courts tra-
    ditionally found infringement of intellectual property
    rights to be irreparable. As Chief Justice Roberts ex-
    plained in his eBay concurrence:
    From at least the early 19th century, courts have
    granted injunctive relief upon a finding of in-
    fringement in the vast majority of patent cases.
    This “long tradition of equity practice” is not sur-
    prising, given the difficulty of protecting a right to
    exclude through monetary remedies that allow an
    infringer to use an invention against the patent-
    ee’s wishes—a difficulty that often implicates the
    first two factors of the traditional four-factor test.
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.            7
    
    eBay, 547 U.S. at 395
    . As Justice Kennedy explained,
    however, this traditional model does not always apply,
    particularly when the patentee is a non-practicing entity:
    An industry has developed in which firms use pa-
    tents not as a basis for producing and selling
    goods but, instead, primarily for obtaining licens-
    ing fees. For these firms, an injunction, and the
    potentially serious sanctions arising from its vio-
    lation, can be employed as a bargaining tool to
    charge exorbitant fees to companies that seek to
    buy licenses to practice the patent. When the pa-
    tented invention is but a small component of the
    product the companies seek to produce and the
    threat of an injunction is employed simply for un-
    due leverage in negotiations, legal damages may
    well be sufficient to compensate for the infringe-
    ment and an injunction may not serve the public
    interest.
    
    Id. at 396–97.
    Where the patentee is an entity that uses
    patents primarily to obtain licensing fees, its business
    objectives are premised on monetary relief being sufficient
    to compensate for infringement. The relationship be-
    tween the patentee and the infringer is also relatively
    simple, making damages relatively straightforward to
    calculate.
    That is not the case here. Apple’s business objectives
    encompass far more than obtaining licensing fees. And
    the relationship between Apple and Samsung is complex.
    Apple and Samsung “fiercely” compete in the mobile
    device hardware and software markets. The device
    hardware market includes multiple competitors, but
    Apple and Samsung stand alone as the market leaders.
    They also compete in the device operating system market,
    where Apple’s “iOS” operating system competes with
    Google, Inc.’s “Android” operating system.
    8               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    Apple effectively created the smartphone market
    when it launched its iPhone in June 2007. According to
    Phil Schiller, the head of Apple’s Worldwide Marketing
    Group, Apple sold 300,000 units during its first quarter.
    J.A. 10447. This figure rose to over 10 million at the start
    of 2009. 
    Id. According to
    Mr. Schiller, what distin-
    guished Apple’s phones was that they were controlled
    completely by software (as opposed to buttons on the
    phone), which allowed users to access media and the
    Internet. J.A. 10449. Apple released its tablet, the iPad,
    in 2010, and it too enjoyed great success. J.A. 10451.
    When Samsung entered the smartphone market, releas-
    ing its own line of “Galaxy” smartphones, Apple took
    notice. To Mr. Schiller, Samsung’s smartphones seemed
    like an “attempt to copy the iPhone.” J.A. 10470. By
    August of 2011, when Apple was releasing version 5 of
    iOS, the relationship between Apple and Samsung, in Mr.
    Schiller’s words, “wasn’t a good relationship.” J.A. 10473.
    Apple and Samsung had created an “extremely competi-
    tive environment.” J.A. 10473. Apple and Samsung were
    at the time of trial, according to Mr. Schiller, “head-to-
    head” competitors in a variety of retail markets for
    smartphones and tablets. J.A. 10469.
    From Samsung’s perspective, the competition was
    equally vigorous. In its internal marketing documents,
    Samsung listed one of its 2010 objectives in market repu-
    tation terms to “overcome fast follower status and estab-
    lish Samsung as a challenger to Apple.” J.A. 11703. In
    Samsung’s view, the marketplace mainly involved compe-
    tition between devices that run Apple’s iOS and devices
    that run Google’s Android. J.A. 11708. Indeed, Sam-
    sung’s counsel asserted in its opening statement that
    “Apple has sued . . . the biggest user of Google’s Android
    software and the most successful manufacturer of Android
    phones, Samsung, to try to prevent it from selling phones
    with that leading Android software . . . .” J.A. 10361.
    Samsung, however, also attempted to distinguish its
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.           9
    devices from Apple’s through hardware advancements,
    including, for example, larger screen sizes, near field
    communications, and allowing for the use of a stylus. J.A.
    11710. Despite this fierce, toe-to-toe competition, Apple
    and Samsung are also business partners. Samsung
    supplies about 25 percent of the components in the iPh-
    one. J.A. 11712.
    This evidence demonstrates that the relationship be-
    tween Apple and Samsung is dramatically different from
    a non-practicing entity and an infringer. Apple’s business
    objective is not merely to obtain licensing fees from Sam-
    sung. Rather, it seeks to firmly establish and grow its
    market share in the rapidly evolving smartphone and
    tablet market. In a marketplace this complex, it is diffi-
    cult, if not impossible, for a court to accurately value
    Apple’s right to exclude. How, for example, does Apple
    value its rights to exclude relative to other means for
    competing against Samsung? What effect does the in-
    fringement have on how consumers view subsequently
    released products? How would Apple’s existing business
    relationship with Samsung factor into this valuation?
    Courts are not equipped to answer these questions.
    In sum, a jury found that Samsung infringed Apple’s
    right to exclude. Apple has been injured and, absent an
    injunction, that injury will likely continue. eBay and its
    progeny explain that such a finding is not necessarily
    sufficient to meet the irreparable harm requirement. But
    that does not mean we should ignore this injury. In view
    of Apple’s and Samsung’s unique competition, I would
    conclude a court cannot accurately determine the extent
    of Apple’s injury, and thus, I would find that Samsung’s
    infringement of Apple’s patent rights irreparably injures
    Apple.
    10                APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    II.   Apple has shown that Samsung’s Infringement
    will Likely Injure Apple’s Reputation as an In-
    novator.
    Having determined that Apple established irreparable
    injury via lost downstream sales, the majority opinion
    does not reach the issue of reputational injury. Maj. Op.
    at 22, n.2. I would reach this issue and hold, in the alter-
    native, that Samsung’s continued infringement would
    irreparably injure Apple’s reputation as an innovator.
    To establish any irreparable injury, this court has
    generally required the plaintiff to establish a “causal
    nexus”: “[t]o show irreparable harm, it is necessary to
    show that the infringement caused harm in the first
    place.” Apple 
    I, 678 F.3d at 1324
    (emphasis added). The
    problem with this formulation is that it necessarily focus-
    es on the past, and in doing so effectively requires the
    plaintiff to show a near certainty of irreparable harm and
    not a “likelihood” of harm. As the Supreme Court ex-
    plained more than sixty years ago, injunctive relief ad-
    dresses future harms and the past is only relevant as an
    indicator of the future:
    The sole function of an action for injunction is to
    forestall future violations. . . . All it takes to make
    the cause of action for relief by injunction is a real
    threat of future violation or a contemporary viola-
    tion of a nature likely to continue or recur. . . . In
    a forward-looking action such as this, an examina-
    tion of ‘a great amount of archeology' is justified
    only when it illuminates or explains the present
    and predicts the shape of things to come.
    United States v. Or. State Med. Soc., 
    343 U.S. 326
    , 333
    (1952) (Jackson, J.). In Winter v. Natural Resources
    Defense Council, Inc., the Court further explained that a
    plaintiff must show that irreparable injury is “likely” in
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.            11
    the absence of an injunction. 
    555 U.S. 7
    , 22 (2008). 3
    While “likely” is more demanding than “possible,” it does
    not require a showing that the injury is certain or nearly
    certain. Small v. Avanti Health Sys., LLC, 
    661 F.3d 1180
    ,
    1191 (9th Cir. 2011). Rather, the plaintiff must show that
    irreparable injury is more likely than not to occur absent
    an injunction. Cf. Trebro Mfg., Inc. v. Firefly Equip., LLC,
    
    748 F.3d 1159
    , 1166 (Fed. Cir. 2014) (explaining that
    “likely” success on the merits means “more likely than
    not”).
    A plaintiff can meet this burden by showing that it
    will likely suffer an injury and, separately, satisfy the
    nexus requirement by showing that this injury is causally
    linked to the infringement. The plaintiff’s evidence often
    comes in the form of empirical data showing both a past
    injury and a causal link between that injury and the past
    infringement. 4 The district court faults Apple for not
    following this methodology here, finding significant that
    Apple’s data do not empirically show that its reputation
    had been harmed. Apple Inc. v. Samsung Elecs. Co. Ltd.,
    No. 12-CV00630, 
    2014 WL 7496140
    , at *15–17 (N.D. Cal.
    Aug. 27, 2014). But our case law does not require a
    plaintiff to follow this methodology. A plaintiff can in-
    stead rely on a theory of causation to show that it will be
    irreparably harmed. In other words, the plaintiff can
    show both the presence of irreparable injury and the
    causal nexus by establishing circumstances under which
    3    Though Winter addressed the test in the context of
    a preliminary injunction, the substantive analysis for
    irreparable harm factor is the same for a permanent
    injunction. Amoco Prod. Co. v. Village of Gambell, AK,
    
    480 U.S. 531
    , 546 n.12 (1987).
    4   As noted, an injunction is a form of forward-
    looking relief. Thus, arguments based on past harm
    implicitly assume that circumstances will not change.
    12              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    infringement would more likely than not cause the
    claimed injury. This was how the patentee proved irrepa-
    rable injury in Douglas Dynamics, LLC v. Buyer Products
    Co., 
    717 F.3d 1336
    (Fed. Cir. 2013).
    In that case, the patentee, Douglas Dynamics, and in-
    fringer, Buyer Products, were competitors in the market
    for snowplow assemblies often mounted on the front of a
    truck. 
    Id. at 1339.
    Douglas Dynamics had about sixty
    percent of the market share and was recognized as being
    an innovator. 
    Id. The patented
    features were recogniza-
    ble by consumers, thus influencing how consumers viewed
    Douglas Dynamics. The patented features included a
    mounting frame that did not extend beyond the vehicle’s
    bumper, reducing the likelihood of inadvertent damage
    and allowing drivers to “remove heavy portions of the
    snowplow assembly from the vehicle when the plow is not
    in use, thus reducing stress on the vehicle’s suspension.”
    
    Id. We held
    that the district court abused its discretion in
    finding that Douglas did not meet the irreparable injury
    factor. 
    Id. In particular,
    we held—without any empirical
    evidence of injury or causal nexus—that the district
    court’s finding that Douglas Dynamics’s reputation would
    not be injured by the infringement was clearly erroneous.
    
    Id. at 1344.
    Infringement, we explained, can harm a
    company’s reputation, “particularly its perception in the
    marketplace by customers, dealers, and distributors.” 
    Id. Douglas Dynamics’s
    reputation would “certainly be dam-
    aged” if customers found the patented features appearing
    in a competitor’s product. 
    Id. at 1344–45.
    Douglas Dy-
    namics would be perceived as less of an innovator because
    its competitors could incorporate the patented features
    without noting that they belonged to Douglas Dynamics.
    
    Id. at 1344.
    Exclusivity, we further explained, is “an
    intangible asset that is part of a company’s reputation.”
    
    Id. at 1345.
    “Where two companies are in competition
    against one another, the patentee suffers the harm—often
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.            13
    irreparable—of being forced to compete against products
    that incorporate and infringe its own patented inven-
    tions.” 
    Id. Where the
    patentee and the infringer are toe-
    to-toe competitors in a two-competitor marketplace, the
    loss of reputation caused by infringement marks a gain of
    reputation of the infringer as an innovator.
    On the record before us, I would hold that Apple has
    shown that it will likely suffer irreparable injury. First,
    Apple and Samsung are direct competitors in the
    smartphone and tablet market. We have repeatedly held
    after eBay that competition between the patentee and the
    infringer, particularly direct competition, strongly mili-
    tates toward a finding of irreparable harm. As noted
    above, in Douglas Dynamics, we focused on the competi-
    tion between the patentee and the infringer. 
    Id. In Presidio
    Components, we explained that direct competi-
    tion is “one factor suggesting strongly the potential for
    irreparable harm.” Presidio Components Inc. v. Am. Tech.
    Ceramics Corp., 
    702 F.3d 1351
    , 1363 (Fed. Cir. 2012)
    (internal citation omitted). And in Trebo Manufacturing,
    we explained that because the record showed that the
    patentee and the infringer were direct competitors, it
    “strongly show[ed] a probability for irreparable harm.”
    Trebo Mfg. v. Firefly Equipment, 
    748 F.3d 1159
    , 1171
    (Fed. Cir. 2014). This factor is especially strong here
    because Apple and Samsung are toe-to-toe competitors in
    a unique marketplace.
    Second, like Douglas Dynamics, Apple’s reputation as
    an innovator is critical to its ability to compete against
    Samsung. As the district court explained, Apple has a
    strong reputation as being an innovator in the
    smartphone and tablet market. See 
    2014 WL 7496140
    at
    *15. Samsung appears to concede this point, going so far
    as to refer to Apple as an “amazing innovative company”
    in its opening statement at trial. J.A. 10361. Mr. Schiller
    testified that Apple prizes this reputation, explaining that
    the “very DNA” of Apple is that it is an innovator that
    14              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    “creates unique differentiations in [its] products that
    customers value.” J.A. 10453. He further explained that
    Apple’s marketing strategy was “The Product as Hero.”
    J.A. 10466. That is, the features of the product are the
    emphasis of the marketing, not, e.g., price, customer
    service, etc. See 
    id. The patents
    at issue here cover the types of features
    that made Apple’s products the “hero.” These patents
    cover features that consumers regularly interact with,
    thereby influencing how consumers perceive Apple, not
    latent features which consumers may not be aware of.
    Douglas 
    Dynamics, 717 F.3d at 1339
    . For example, U.S.
    Patent No. 5,946,647 discloses software that allows a user
    to take action with respect to a detected phone number by
    dialing a phone number without exiting one program and
    entering another. ’647 patent col. 5 ll. 38–50. These
    features were so important that Apple included it across
    all of its products, including iPhones and iPads. J.A.
    10794. U.S. Patent No. 8,046,721 discloses a device that a
    user unlocks with gestures. ’721 patent col. 8 ll. 49–55.
    This feature was one of the features that Apple marketed
    in its first ads. It represented a “great beginning” that
    customers often utilize. J.A. 10433–34, 21014, 10602–04.
    Similarly, U.S. Patent No. 8,074,172 discloses a method
    for automatically correcting spelling errors as a user types
    words using a touchscreen device, a boon for those who
    would accept a misspelled word in favor of looking up its
    correct spelling. ’172 patent col. 9 ll. 11–27.
    In Douglas Dynamics, we explained that when cus-
    tomers find the patentee’s innovations appearing in a
    competitor’s products, the patentee’s reputation as an
    innovator will “certainly” be damaged. Douglas Dynam-
    
    ics, 717 F.3d at 1344
    –45. That reasoning applies with
    great force here. Though the parties dispute whether
    Apple practices every aspect of the claimed inventions, it
    is essentially undisputed that Apple’s products include
    similar features that compete with the patented features,
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.            15
    as practiced in Samsung’s products. The presence of the
    patented features in the products of Apple’s chief competi-
    tor communicates a message that Apple’s corresponding
    features are commonplace, not innovative. Samsung’s
    infringement thus neutralizes the beneficial impact that
    Apple’s corresponding features have in the mind of the
    consumer. This injury is amplified here because of the
    toe-to-toe competition between Apple and Samsung. In
    such a market, even otherwise minor differences between
    competitors are magnified as each competitor attempts to
    gain some advantage over the other, such as the percep-
    tion that one is a greater innovator than the other.
    Apple’s reputational injury is all the more important
    here because of the nature of Apple’s reputation, i.e., one
    of an innovator (as opposed to, e.g., a producer of low-cost
    goods). Consumers in the smartphone and tablet market
    seek out innovative features and are willing to pay a
    premium for them. Sometimes consumers in this market
    will even prioritize innovation over utility. A reputation
    as an innovator creates excitement for product launches
    and engenders brand loyalty. Samsung recognized the
    importance of such a reputation and set its sights not on
    developing more useful products, but rather to overcome
    the perception that it was a “fast follower.” Apple, 
    2014 WL 7496140
    , at *8.
    Samsung argues that some or all of the patented fea-
    tures not being exclusive to Apple “defeats any claim of
    reputational harm.” Appellee Br. 38. Apple appears to
    concede that it has license agreements with Nokia and
    HTC. 5 Appellant Br. 46. Apple also appears to have
    license agreements with Microsoft and IBM, but Samsung
    did not rely on these licenses before the district court.
    5   All license agreements are described in general
    terms because aspects of these agreements are confiden-
    tial.
    16               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    
    2014 WL 7496140
    at *33, n.7. A patentee’s willingness to
    license can militate against a finding of irreparable harm,
    but it does not foreclose such a finding. Acumed LLC v.
    Stryker Corp., 
    551 F.3d 1323
    , 1328 (Fed. Cir. 2008) (“A
    plaintiff’s past willingness to license its patent is not
    sufficient per se to establish a lack of irreparable harm if
    a new infringer were added.”) (citing 
    eBay, 547 U.S. at 393
    ). In the context of reputational injury, if patented
    features appear in products other than the infringer’s
    products, the marginal impact of the infringer’s use of
    those features may be minimized. The licensed use of
    patented features is sufficient to make those features
    appear commonplace, and thus the infringer’s use of those
    features has little or no impact. This reasoning does not
    apply here because there is no evidence that any of the
    licensees practiced any of the patented features. Sam-
    sung counters that it is Apple’s burden to produce evi-
    dence tending to prove the negative, i.e., to produce
    “evidence that Microsoft and HTC cannot and do not use
    the patented features.” Appellee Br. 38. Samsung’s
    argument misunderstands the burden applicable in this
    case. In requesting a permanent injunction, Apple of
    course bears the burden of production. Robert 
    Bosch, 659 F.3d at 1154
    . Apple met this burden with the evidence
    cited above—particularly, the unique, direct, and fierce
    competition between the parties, Apple’s reputation as an
    innovator, and the importance of the patented features to
    that reputation. If Samsung seeks to rebut this evidence
    with instances of the use of the patented features by other
    parties, it was Samsung’s burden to show that this oc-
    curred. To hold otherwise would mean that proof of a lack
    of licensing activity is a prerequisite to injunctive relief, a
    position the Supreme Court rejected in 
    eBay. 547 U.S. at 393
    . 6
    6   The Dissent incorrectly asserts that requiring
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.           17
    Nor does the presence of the licensing agreements in-
    dicate that Apple considered monetary remedies sufficient
    to compensate it for Samsung’s infringement. As the
    district court found, the Nokia and HTC licenses are
    litigation settlements. 
    2014 WL 7496140
    at *33. Though
    these agreements may allow for some form of monetary
    compensation, they have a fundamentally non-monetary
    undergirding—the end of a litigation between the parties.
    In addition, the licenses themselves indicate a strong
    desire on the part of Apple to carefully guard its own user
    experience. The HTC license excluded products that were
    “clones” of Apple’s products, and the license to Nokia only
    applied for a “standstill” period. 
    Id. Most notably,
    the
    licensed companies are not Apple’s chief competitor.
    Thus, even if the licenses indicate a willingness to accept
    monetary compensation from Nokia and HTC, they would
    not show that monetary compensation is sufficient in this
    case. As we explained in Acumed, the “identity of the past
    licensees, the experience in the market since the licenses
    were granted, and the identity of the new infringer” all
    affect whether monetary damages are sufficient to com-
    pensate for 
    infringement. 551 F.3d at 1328
    .
    Samsung also argues that a reliance on the factors
    described in Douglas Dynamics would create a “per se”
    rule of the sort that the Supreme Court rejected in eBay.
    Appellee Br. 30. Indeed, a theme that runs through both
    parties’ briefing is that the other side’s reasoning would
    impermissibly create a per se rule. Both sides are of
    course correct that eBay rejected this court’s “categorical
    Samsung to provide evidence of instances of the use of the
    patented features by parties other than Samsung “arbi-
    trarily shift[s] the burden of proof to Samsung.” Dissent
    at 3–4 n.1. The burden of proof, of course, remains on
    Apple. But Apple does not have to prove a negative to
    carry that burden.
    18               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    grant” of injunctions absent exceptional 
    circumstances. 546 U.S. at 394
    . But relying on factors from past cases to
    determine whether a patentee will likely suffer irrepara-
    ble harm is not the creation of a per se rule; it is the
    application of stare decisis. As Justice Holmes famously
    stated, “a page of history is worth a volume of logic.” N.Y.
    Trust Co. v. Eisner, 
    256 U.S. 345
    , 349 (1921) (quoted in
    
    eBay, 547 U.S. at 395
    (Roberts, C.J., concurring)).
    III. CONCLUSION
    I would hold that Samsung’s infringement amounted
    to an irreparable injury to Apple’s right to exclude. That
    injury is sufficient, based on the facts of this case, to grant
    an injunction. Apple also has shown that Samsung’s
    infringement will likely injure its reputation as an inno-
    vator in the fiercely competitive smartphone and tablet
    market.
    United States Court of Appeals
    for the Federal Circuit
    ______________________
    APPLE INC., A CALIFORNIA CORPORATION,
    Plaintiff-Appellant
    v.
    SAMSUNG ELECTRONICS CO., LTD., A KOREAN
    CORPORATION, SAMSUNG ELECTRONICS
    AMERICA, INC., A NEW YORK CORPORATION,
    SAMSUNG TELECOMMUNICATIONS AMERICA,
    LLC, A DELAWARE LIMITED LIABILITY
    COMPANY,
    Defendants-Appellees
    ______________________
    2014-1802
    ______________________
    Appeals from the United States District Court for the
    Northern District of California in No. 5:12-cv-00630-LHK,
    Judge Lucy H. Koh.
    ______________________
    PROST, Chief Judge, dissenting.
    This is not a close case. One of the Apple patents at
    issue covers a spelling correction feature not used by
    Apple. Two other patents relate to minor features (two
    out of many thousands) in Apple’s iPhone—linking a
    phone number in a document to a dialer, and unlocking
    the screen. Apple alleged that it would suffer irreparable
    harm from lost sales because of Samsung’s patent in-
    fringement. For support, Apple relied on a consumer
    survey as direct evidence, and its allegations of “copying”
    2               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    as circumstantial evidence. The district court rejected
    both evidentiary bases. On the record of this case, show-
    ing clear error in the district court’s factual findings is
    daunting, if not impossible. Not surprisingly, Apple
    principally presses a novel legal theory in this appeal:
    that the narrowness of its injunction request eliminated
    its burden to show nexus between its alleged irreparable
    harm and Samsung’s patent infringement. The majority
    correctly rejects this theory and the case should have
    ended there.
    So why doesn’t it? Because the majority finds legal
    error by the district court where none exists. Then, under
    the guise of the purported “legal error,” the majority
    reverses without deference the district court’s rejection of
    Apple’s survey evidence, never mentioning that the sur-
    vey was rejected by the district court because Samsung’s
    serious challenges to its techniques and conclusions were
    unrebutted by Apple. The majority further relies on
    “evidence,” found nowhere in the record, that carriers or
    users preferred having the patented features on Sam-
    sung’s phones. It also concludes—contrary to our case
    law—that Apple’s alleged evidence of “copying” is suffi-
    cient to show nexus to Apple’s alleged lost-sales. Because
    the majority here reaches a result that comports with
    neither existing law nor the record in this case, I must
    respectfully dissent.
    A
    Injunctions in patent cases, as in other areas of law,
    require evaluating the traditional four factors, including
    irreparable harm. Following eBay Inc. v. MercExchange,
    L.L.C., 
    547 U.S. 388
    (2006), when the infringing feature is
    but one of several components of the accused product, our
    precedent has clearly and consistently required patentees
    requesting injunctions to establish a nexus between the
    alleged irreparable harm and the patent infringement.
    This nexus showing is, of course, an indispensable pre-
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.               3
    requisite in a case such as this, where, we are told, the
    infringed features are merely three of potentially hun-
    dreds of thousands of patented features in a single prod-
    uct. Requiring a showing of nexus is necessary to prevent
    undue leverage wielded by patents on minor features.
    B
    Turning to the case, the majority’s first error is its de-
    termination that the district court’s analysis was legally
    erroneous. Specifically, the majority states that, regard-
    ing Apple’s alleged irreparable harm from lost sales, “it
    was legal error for the district court to effectively require
    Apple to prove that the infringement was the sole cause of
    the lost downstream sales.” Majority Op. at 11; see also
    
    id. at 12,
    16. But the majority quotes nothing from the
    district court’s opinion to show there is such an error.
    And for good reason: there is nothing. Hence, there is no
    error.
    The words “sole” and “predominant” are not even pre-
    sent in the district court’s opinion. 1 There is simply
    1   The district court used the words “exclusivity” and
    “exclusively,” but only in the context of rejecting Apple’s
    contention of irreparable reputational harm. See, e.g.,
    Apple Inc. v. Samsung Elecs. Co., No. 12-CV-00630-LHK,
    
    2014 WL 7496140
    , at *11 (N.D. Cal. Aug. 27, 2014) (“In-
    junction Order”). And while the majority declines to
    reach the reputational harm issue, the concurrence does
    not. Here, the district court found that Apple’s licenses to
    other competitors were fatal to its claim that it had a
    “reputation for exclusivity” over the patented features.
    
    Id. The concurrence
    simply disregards this finding.
    Instead, the concurrence faults Samsung for failing to
    show evidence “that any of the licensees practiced any of
    the patented features” and states that Apple only “bears
    the burden of production,” after which the burden shifts to
    4                APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    nothing in the district court’s opinion that explicitly or
    implicitly required Apple to show that the patented
    features were the “sole,” “predominant,” or “exclusive”
    reasons for purchasing Samsung’s products. Neverthe-
    less, the majority concludes that the district court’s rejec-
    tion of Apple’s direct evidence—the consumer survey and
    testimony by its expert, Dr. Hauser—“seems to be predi-
    cated on an incorrect understanding of the nature of the
    causal nexus requirement, as discussed above,” i.e., the
    so-called “legal error” by the district court. 
    Id. at 14.
        In reality, however, the district court simply weighed
    the evidence and found it lacking: “[t]he weight of the
    evidence shows that Apple’s conjoint study fails to demon-
    strate that the features claimed in the ’647, ’721, and ’172
    patents drive consumer demand for Samsung’s infringing
    products.” Injunction Order at *13. The district court
    reasoned that Apple made “only cursory arguments”
    about Dr. Hauser’s survey, while in contrast, Samsung
    challenged its myriad deficiencies including that the
    survey “omitted the major factors and major drivers of
    sales,” “overstated the scope of the claimed features and
    improperly included noninfringing alternatives,” and
    “produced nonsensical results, such as the conclusion that
    the patented word correction feature (corresponding to the
    ’172 patent) was worth about $102 on a phone that cost
    $149.” 
    Id. at *12–13.
    The district court therefore found
    that Apple “d[id] not rebut Samsung’s critiques of Dr.
    Samsung. Concurrence at 16. But the party requesting
    injunction bears more than the “burden of production;” it
    bears the “burden of proving irreparable harm,” a burden
    which Apple failed to meet. See Robert Bosch LLC v.
    Pylon Mfg. Corp., 
    659 F.3d 1142
    , 1154 (Fed. Cir. 2011).
    Apple’s failure of proof cannot be excused by disregarding
    the district court’s factual findings and arbitrarily shifting
    the burden of proof to Samsung.
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.              5
    Hauser’s techniques or show that Apple’s conjoint study
    in this case establishe[d] a causal nexus.” 
    Id. at *13.
        In making these factual findings, the district court fol-
    lowed our case law faithfully. Nothing in the district
    court’s opinion suggests that it deviated from our prece-
    dent. Rather, the majority deviates from our precedent by
    repeating as a mantra the phrase “some connection” in
    Apple Inc. v. Samsung Electronics Co., 
    735 F.3d 1352
    (Fed. Cir. 2013) (“Apple III”) detached from the causal
    nexus standard explained in our prior cases. See Majority
    Op. at 9, 10, 11 n.1, 12, 17. For example, we have held
    that
    It is not enough for the patentee to establish some
    insubstantial connection between the alleged
    harm and the infringement and check the causal
    nexus requirement off the list. The patentee must
    rather show that the infringing feature drives
    consumer demand for the accused product.
    Apple Inc. v. Samsung Elecs. Co., 
    695 F.3d 1370
    , 1375
    (Fed. Cir. 2012) (“Apple II”). We quoted the precise lan-
    guage from the latter sentence above and explicitly
    acknowledged the continuing force of this requirement in
    Apple III. Apple III at 1364 (quoting id.). The majority
    seems to ignore this consistent standard and concludes to
    the contrary that showing that a patented feature is a
    “significant driver of customer demand” is not necessary
    to prove causal nexus to the alleged lost sales. Majority
    Op. at 17.
    The majority reaches its conclusion through a peculiar
    extrapolation of four examples in Apple III, three of which
    immediately followed the “some connection” remark to
    show how the causal nexus may be met. Perhaps conced-
    ing that the facts of this case do not meet these three
    examples, the majority simply dismisses the examples as
    failing to “delineate or set a floor” for the necessary con-
    nection and that something far less is sufficient. 
    Id. at 6
                  APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    11 n.1. The majority is wrong: these three examples show
    what would be necessary under different factual scenarios
    and a weaker showing in each of those scenarios would
    fall short of the required nexus. See Apple III at 1364
    (“There might be a variety of ways to make this required
    showing, for example . . . .”) (emphasis added).
    The majority further relies on the fourth example
    elsewhere in Apple III, one in which the nexus would be
    insufficient, where consumers are willing to pay only a
    nominal premium of $10 for an infringing cup holder in a
    $20,000 car. 
    Id. at 1368
    . According to the majority, there
    must be at least a stronger connection than a willingness
    to pay a nominal premium to satisfy its “some connection”
    standard. 2 Majority Op. at 11 n.1. The irony, of course, is
    that Apple’s evidence still fell short of even this meager
    and insufficient cup holder example because Apple failed
    to offer any defensible evidence on consumers’ willingness
    to pay even a nominal premium for the patented features
    over non-infringing alternatives. See Injunction Order at
    *13 (finding that Apple “d[id] not rebut Samsung’s cri-
    tiques of Dr. Hauser’s techniques or show that Apple’s
    conjoint study in this case establishes a causal nexus.”).
    The bottom line is that the district court’s rejection of
    Apple’s direct survey evidence was not clearly erroneous.
    This simple fact is in stark contrast to the majority’s
    contortions in an attempt to avoid it. The majority has no
    legitimate basis to reverse the district court.
    2   The majority juxtaposes the examples of what
    “some connection” means and the one example elsewhere
    of what it does not cover, and then concludes that any-
    thing between the two sets of examples is sufficient. I
    don’t understand the logic and I certainly cannot embrace
    it.
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.             7
    C
    Hamstrung by the deficiencies in Apple’s direct sur-
    vey evidence, the majority trumpets instead Apple’s
    “copying” evidence and even creates new evidence:
    Given the strength of the evidence of copying and
    Samsung’s professed belief in the importance of
    the patented features as a driver of sales, and the
    evidence that carriers or users also valued and
    preferred phones with these features, the district
    court erred by disregarding this evidence, which
    further establishes a causal nexus and Apple’s ir-
    reparable harm.
    Majority Op. at 15. All three parts of this statement are
    wrong: there was no evidence at all of such “carriers’ or
    users’ preference;” there was no “strong” evidence of
    “copying;” and “copying” alone is not dispositive to estab-
    lish a causal nexus to Apple’s alleged irreparable harm
    from lost sales.
    First, the majority’s “carriers’ or users’ preference”
    theory was not mentioned at all by the district court. The
    majority asserts that “[t]he district court acknowledged
    that Apple presented evidence that carriers (’721 patent)
    and users (’172 patent), not just Samsung, preferred and
    valued the infringing features and wanted them in Sam-
    sung phones.” 
    Id. at 15.
    The majority again quotes
    nothing from the district court’s opinion to show there is
    such an acknowledgement. Again for good reason: there
    is nothing. As the majority notes just two sentences later,
    the district court “failed to appreciate” that the evidence
    cited by Apple “did not just demonstrate that Samsung
    valued the patented features, but also that its carriers or
    users valued the features.” 
    Id. The district
    court could
    not have “acknowledged” what it “failed to appreciate.”
    The majority reaches its creative interpretation of the
    evidence to find “carriers’ or users’ preference” all on its
    own.
    8               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    The majority also cites nothing from the record to
    support its “carriers’ or users’ preference” theory. I can
    only guess that the majority’s “users (’172 patent) prefer-
    ence” theory is relying on its earlier statement that “users
    criticized Samsung’s noninfringing keyboards and word-
    correction designs,” for that is the only reference by the
    majority to anything in the record in connection with
    users and the ’172 patent. See 
    id. at 13
    (citing J.A.
    20985). The document in the Joint Appendix on page
    20985, however, is merely an internal Samsung e-mail
    message that mentioned “carrier issues” with Samsung’s
    keyboard user interface and referred to a table of infor-
    mation immediately following. Apple’s expert, Mr. Cock-
    burn, concluded from the table that Samsung was
    proposing to use the feature defined in the ’172 patent.
    J.A. 10700–02 (“And the next column across says ‘shows
    word in suggestion bar but does not change in the text
    field until user accepts or hits space.’ So this is the in-
    fringing method.”). Immediately below the text interpret-
    ed by Apple’s Mr. Cockburn as proposing the infringing
    feature, Samsung’s employees noted “[Carrier requests
    additional information] It is not clear exactly what the
    issue is.” J.A. 20988 (brackets in original). The carrier
    was concerned about and had some “issue” with Sam-
    sung’s proposal to change to the purported infringing
    feature; the “carrier issues” were not about Samsung’s
    previous non-infringing method.
    This e-mail message mentioned no users’ or carriers’
    criticisms of Samsung’s non-infringing alterative to the
    ’172 patent’s method. See J.A. 20983–88, J.A. 10700–02.
    Moreover, even if this e-mail were to show such criticisms,
    a negative view towards a non-infringing feature does not
    prove a positive preference towards the patented feature.
    Consumers could have preferred many other non-
    infringing word correction alternatives to the ’172 patent,
    including Apple’s implementation in its “undisputedly
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.              9
    successful” products that do not practice the ’172 patent.
    See Majority Op. at 4.
    Likewise, I can only guess that the majority’s “carri-
    ers (’721 patent) preference” theory is relying on its earli-
    er statement that “Samsung e-mails not[ed] that certain
    carriers disapproved of the noninfringing ‘circle lock’
    alternative,” for that is the only statement by the majority
    tying the ’721 patent to carriers. See 
    id. at 12
    (citing J.A.
    21019). The document in the Joint Appendix on page
    21019, however, is merely an internal Samsung e-mail
    message referring to a single carrier’s “negative response
    towards our company’s circle lock playing the role of the
    unlock visual cue.” The majority’s characterization of the
    negative response as a “disapproval” is much too strong
    because the response was only preliminary; the carrier
    had not reviewed an actual working sample and was
    “request[ing] to review actual working sample . . . .” See
    
    id. Moreover, as
    discussed above, a negative view to-
    wards a non-infringing feature does not prove a positive
    preference for the patented feature. The evidence cited by
    the majority of a “negative response” does not show that
    any carrier preferred the feature defined by the ’721
    patent. The majority’s “carriers’ or users’ preference”
    arguments and the factual record it builds for support
    dissolve upon review of the evidence.
    What we are therefore left with is the majority’s reli-
    ance on the so-called “copying” by Samsung to justify its
    reversal of the district court’s finding of no irreparable
    harm from lost sales. And the factual support is weak.
    The majority concedes as much in concluding that “the
    evidence may not make a strong case of irreparable harm
    . . . .” 
    Id. at 22.
        Nevertheless, the majority states that “[t]he district
    court wrote that there was evidence . . . ‘indicative of
    copying.’” 
    Id. at 13.
    The quotations upon which the
    majority relies, however, are not the district court’s find-
    10              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    ings. Rather, they are the district court’s recitation of
    Apple’s contentions, with which the district court disa-
    greed. As the district court noted, “[w]hile indicative of
    copying by Samsung, this evidence alone does not estab-
    lish that the infringing features drove customer demand
    for Samsung’s smartphones and tablets.” See Injunction
    Order at *14 (emphasis added). The district court, of
    course, did not mean that Apple proved copying for all
    three patents-in-suit. As the district court noted, Apple
    did not practice or allege copying of the ’172 patent. 
    Id. The district
    court also rejected Apple’s only support for its
    contention that it practiced the ’647 patent. 
    Id. at *15
    (finding Apple’s only evidence of its own use “did not
    directly equate asserted claim 9 of the ’647 patent with
    ‘data detectors’”). Without Apple practicing these patents,
    Samsung obviously could not have copied the patented
    features from Apple’s products.
    The district court also discounted Apple’s evidence of
    “copying,” because “[s]ome of the cited Samsung docu-
    ments show that Samsung valued numerous other nonin-
    fringing features.” See 
    id. In fact,
    Apple’s evidence of
    “copying” lacked any connection to the critical details that
    define the patented features. The handful of internal
    Samsung documents cited by Apple merely addressed
    generic or un-patented aspects of Apple’s linking and
    screen-unlocking features. For example, one internal
    Samsung analysis recommended that Samsung provide
    “Links for memo contents such as Web, Call and E-mail,
    that can be linked.” J.A. 20584. But the asserted ’647
    patent claim does not monopolize the general concept of
    linking from documents; it is limited instead by specific
    elements such as “display[ing] a pop-up menu of the
    linked actions” and more. See Injunction Order at *1
    (detailing asserted ’647 patent claim 9). None of these
    critical elements were addressed in Apple’s “copying”
    evidence.
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.            11
    Similarly, another internal Samsung analysis com-
    pared Apple’s “unlocking standard by sliding” with Sam-
    sung’s “unlock[ing] with only a slight flick motion.” J.A.
    20347. But the ’721 patent does not deal with an innova-
    tion based on the strength and speed of the touch input,
    i.e., “sliding” versus “slight flick motion;” it requires
    instead details such as “display[ing] visual cues to com-
    municate a direction of movement of the unlock image
    required to unlock the device” and more. See Injunction
    Order at *2 (detailing asserted ’721 patent claim 8).
    Again, none of these critical elements were addressed in
    Apple’s “copying” evidence. Merely mentioning generic or
    un-patented aspects of Apple’s linking and screen-
    unlocking features is clearly insufficient to show copying
    of the relevant patented features.
    Finally, the majority concludes that the evidence in
    this case, which boils down to Apple’s allegations of
    “copying,” is enough to show nexus to Apple’s alleged
    irreparable harm from lost sales. This conclusion is
    contrary to our precedent. As the district court stated,
    “the parties’ subjective beliefs about what drives consum-
    er demand are relevant to causal nexus, but do not inde-
    pendently satisfy the inquiry.” 
    Id. at *14.
    Once again,
    the district court was doing nothing more than faithfully
    following our case law. We have repeatedly affirmed the
    district court’s previous rejections of the same allegations
    of “copying” as insufficient to show irreparable sales-
    based harm. Apple I at 1327; Apple III at 1367. As we
    have explained, to prove nexus to the alleged lost-sales,
    “the relevant inquiry focuses on the objective reasons as
    to why the patentee lost sales, not on the infringer’s
    subjective beliefs as to why it gained them (or would be
    likely to gain them).” Apple I at 1327–28.
    The district court was well within its discretion to re-
    ject Apple’s contentions of “copying.” There is simply no
    basis for this court, on an abuse of discretion review, to
    12              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    reverse the district court’s denial of Apple’s injunction
    request.
    D
    In sum, the majority states that “the evidence [of con-
    sumer preferences and buying choices] is to be determined
    on a case-by-case basis based on what the evidence indi-
    cates.” Majority Op. at 14. The district court did exactly
    that in this case. Given the unassailable factual findings
    by the district court, the majority faces a tough mountain
    to climb to reach a reversal.
    Thus, in order to reach its result, as described above,
    the majority rests on findings of non-existent legal error,
    of “carriers’ preference” created without record support,
    and of “copying” as dispositive to show causal nexus to
    lost sales that is contrary to our case law. I must disagree
    with the majority’s approach and its conclusion that
    Apple would suffer irreparable harm from Samsung’s
    patent infringement. 3
    3   I also disagree with the majority’s reversal of the
    district court’s findings that remedy at law would be
    adequate. This reversal is premised on the majority’s
    disagreement with the district court’s findings of no
    irreparable harm and the majority’s acceptance of Apple’s
    contention that any lost downstream sales would be
    “difficult to quantify.” Majority Op. at 17. We noted
    previously that if “Apple cannot demonstrate that demand
    for Samsung’s products is driven by the infringing fea-
    tures, then Apple’s reliance on lost market share and
    downstream sales to demonstrate the inadequacy of
    damages will be substantially undermined.” Apple III at
    1371. Because I agree with the district court that Apple
    failed to show irreparable harm, I would also affirm the
    district court’s finding that Apple failed to show inade-
    quacy of legal remedy.
    APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.            13
    E
    Finally, I also note the majority’s discussion on the
    public interest factor. I agree with the majority that the
    public’s interest in competition, without more, does not
    necessarily decide this factor against granting an injunc-
    tion. But it does not follow that the public interest “near-
    ly always” favors granting an injunction as the majority
    states. According to the majority, “[i]njunctions are vital
    to this system. As a result, the public interest nearly
    always weighs in favor of protecting property rights,
    especially when the patentee practices his inventions.”
    
    Id. at 21.
        The majority repeatedly relies on the statutory right
    to exclude others from practicing a patent and the public
    policy embodied in the statute. See 
    id. at 5–6,
    12, 21. But
    I am confident that we all remain mindful that pre-eBay,
    “[a]ccording to the Court of Appeals, this statutory right
    to exclude alone justifie[d] its general rule in favor of
    permanent injunctive relief.” 
    eBay, 547 U.S. at 392
    . The
    Supreme Court, however, unanimously rejected that
    approach, reasoning that “the creation of a right is dis-
    tinct from the provision of remedies for violations of that
    right.” 
    Id. For the
    same reason, the statutory right to
    exclude should not categorically bias the public interest
    factor “strongly” in the determination of the injunctive
    remedies as the majority asserts. See Weinberger v.
    Romero-Barcelo, 
    456 U.S. 305
    , 312 (1982) (“The Court has
    repeatedly held that the basis for injunctive relief in the
    federal courts has always been irreparable injury and the
    inadequacy of legal remedies.”). The particular facts of a
    given case matter.      As Justice Kennedy explained,
    “[w]hen the patented invention is but a small component
    of the product the companies seek to produce and the
    threat of an injunction is employed simply for undue
    leverage in negotiations, legal damages may well be
    sufficient to compensate for the infringement and an
    14              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.
    injunction may not serve the public interest.” 
    eBay, 547 U.S. at 396
    –97 (Kennedy, J., concurring).
    Based on this record, I cannot agree with the majori-
    ty’s broad warning that “[i]f an injunction were not to
    issue in this case, such a decision would virtually foreclose
    the possibility of injunctive relief in any multifaceted,
    multifunction technology.” See Majority Op. at 22. Ra-
    ther, injunctive relief will be appropriate when and if,
    consistent with our case law, the causal nexus require-
    ment is met. This is not such a case.