Krippelz v. Ford Motor Co. ( 2012 )


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  •   United States Court of Appeals
    for the Federal Circuit
    __________________________
    JACOB KRIPPELZ, SR.,
    Plaintiff-Appellee,
    v.
    FORD MOTOR COMPANY,
    Defendant-Appellant.
    __________________________
    2011-1103
    __________________________
    Appeal from the United States District Court for the
    Northern District of Illinois in case no. 98-CV-2361, Judge
    James B. Zagel.
    __________________________
    Decided: January 27, 2012
    __________________________
    MARK E. FERGUSON, Bartlit Beck Herman Palenchar
    & Scott, LLP, of Chicago, Illinois, argued for plaintiff-
    appellee. With him on the brief were ADAM K. MORTARA,
    HAMILTON H. HILL and MARTHA M. PACOLD. Of counsel on
    the brief were JAMES D. RYNDAK, MARK K. SURI and ERIC
    H. WEIMERS, Ryndak & Suri, LLP, of Chicago, Illinois.
    CONSTANTINE L. TRELA, JR., Sidley Austin, LLP, of
    Chicago, Illinois, argued for defendant-appellant. With
    him on the brief was LINDA R. FRIEDLIEB. Of counsel on
    KRIPPELZ   v. FORD MOTOR CO                              2
    the brief was GENE C. SCHAERR, Winston & Strawn, LLP,
    of Washington, DC. Of counsel was THOMAS A. LEWRY,
    Brooks Kushman P.C., of Southfield, Michigan.
    __________________________
    Before NEWMAN, PROST, and O’MALLEY, Circuit Judges.
    PROST, Circuit Judge.
    This is a patent infringement case. Defendant Ford
    Motor Company (“Ford”) appeals a $56 million judgment
    against it. Ford argues that the district court made a
    series of errors in both its infringement and validity
    analyses, as well as in its award of enhanced damages for
    willful infringement. Because the district court erred in
    holding that the patent-in-suit could be found novel over
    the prior art, we reverse as to validity, vacate the other
    rulings, and remand for entry of judgment of non-liability.
    I
    This case’s lengthy history began in February 1989,
    when Jacob Krippelz, Sr., now deceased, filed for a patent
    on a vehicle-mounted lamp. 1 Mr. Krippelz titled the
    resulting patent “Emergency Light.” U.S. Patent No.
    5,017,903 (“’903 patent”) at [54]. It described a lamp
    attached to the side view mirror of an automobile and
    shining downward:
    1    Mr. Krippelz died shortly before the district
    court’s final judgment in this case. His cause is prose-
    cuted by Jacob Krippelz, Jr. and Joseph Krippelz, his
    executors and co-trustees of the Jacob Krippelz, Sr. Revo-
    cable Trust.
    3                                 KRIPPELZ   v. FORD MOTOR CO
    
    Id. fig.1. As
    described by Mr. Krippelz, the lamp was for
    use in inclement weather like rain or fog. Its light would
    reflect off water, dust, or other airborne particles so as to
    be visible to other drivers, but not interfere with either
    their vision or that of the person driving the car. See
    generally 
    id. col.1. Mr.
    Krippelz’s patent issued in 1991. He says he sent
    a copy of it to Ford shortly thereafter, but that Ford was
    not interested in taking a license. For a period of years,
    nothing happened.
    Then, in 1997, Ford began offering a new option on its
    Explorer and other model automobiles, which we will
    refer to as a “puddle light.” The puddle light was a lamp,
    attached to the vehicle’s side view mirror, that shone light
    generally downward. Ford’s puddle light was equipped
    with a lens that diffused the light in such a way as to
    illuminate the vehicle’s side.
    Mr. Krippelz viewed the puddle light as infringing,
    and in 1998 he sued. Complaint, Krippelz v. Ford Motor
    Co., No. 98-CV-2361 [hereinafter Krippelz] (N.D. Ill. Apr.
    16, 1998), ECF No. 1. The case revolved around claim 2 of
    the ’903 patent, which reads:
    KRIPPELZ   v. FORD MOTOR CO                                4
    2. An emergency warning light for an automotive
    vehicle having a window on one side thereof,
    comprising in combination
    a housing mounted in a fixed, substantially
    unadjustable position on said vehicle adjacent
    to said window,
    said housing having an opening in the bottom
    thereof,
    a source of light mounted within said housing
    for directing a conical beam of light
    downwardly through said opening along said
    side of said vehicle below said window so as to
    be visible from in front of and behind said
    vehicle, and
    said opening and said source of light being
    positioned to prevent said beam of light from
    directly impinging on said side of said vehicle.
    ’903 patent col.3 l.19–col.4 l.3.
    About a year after filing the complaint, Mr. Krippelz
    asked the Patent and Trademark Office (“PTO”) to
    reexamine the ’903 patent. An Information Disclosure
    Statement accompanying the request acknowledged the
    ongoing litigation, noted that Ford had raised invalidity
    as a defense, and attached “all the references Ford has
    identified to the Requestor during the litigation.” See
    Info. Disclosure Stmt. (Aug. 30, 1999), at 2, ’903 Reexam.
    File Hist., J.A. 12516, 12517.      The PTO instituted
    reexamination proceedings and subsequently confirmed
    the validity of all the ’903 patent’s claims over the
    submitted prior art. See generally Reexam. Certificate,
    U.S. Patent No. 5,017,903 C1 (issued Aug. 13, 2002). As
    5                                 KRIPPELZ   v. FORD MOTOR CO
    part of the reexamination process, new claims were also
    added to the ’903 patent, which Mr. Krippelz states were
    subsequently asserted against Ford in separate litigation.
    Those claims are not part of this appeal.
    Over the next several years, the district court handled
    a number of summary judgment and claim construction
    issues which we will not recount except to state that there
    was much dispute about the appropriate manner in which
    to analyze Ford’s puddle lights for infringement. For our
    purposes, we note that in 2008 Mr. Krippelz moved for
    summary judgment of infringement, which the court
    granted from the bench. 2         Tr. of Nov. 21, 2008
    Proceedings, at 12:11–17, J.A. 114, 125.
    Infringement having been summarily addressed, the
    case proceeded to trial on validity and damages. Ford
    2   The parties’ briefing and oral argument focused
    on the district court’s approach to interpreting the claim
    and analyzing infringement. The district court adjudged
    Ford’s puddle lights infringing even though they have a
    plastic lens on their outside through which light shines
    onto the car. The court treated the lens as an “additional
    element” not to be considered in the infringement analy-
    sis. Ford contended that this was improper, as it led to
    the surprising result that the Ford lamps—which undis-
    putedly illuminated the side of the car—were held to
    practice the claim’s requirement of “prevent[ing] [the]
    beam of light from directly impinging on said side of said
    vehicle.” Because of our conclusion that claim 2 of the
    ’903 patent is invalid irrespective of how this issue might
    be resolved, we decline to take up the district court’s order
    that the Ford lamps be analyzed for infringement without
    regard to their attached plastic lenses, or to those lenses’
    effect on whether the beam of light did or did not “directly
    imping[e]” on the vehicle side.
    KRIPPELZ   v. FORD MOTOR CO                             6
    argued that claim 2 was anticipated, or at least rendered
    obvious, by French Patent No. 1,031,294 (trans.)
    (published June 22, 1953), J.A. 13430, to DuBois
    [hereinafter DuBois]. DuBois, which did not appear in
    the ’903 patent prosecution history, taught a “system of
    lamps and optical devices” for illuminating the pavement
    next to a vehicle. The idea was to give other drivers a
    clear view of the vehicle’s side and the adjacent area so
    that they could know if there was enough room to pass.
    DuBois, J.A. 13431. Ford argued that DuBois taught all
    the limitations of claim 2. Mr. Krippelz presented opinion
    testimony from an expert that DuBois failed to teach two
    limitations, namely a “conical beam of light” and a lamp
    located “adjacent” to the vehicle window.
    The jury returned its verdict for Mr. Krippelz. It
    found the ’903 patent valid over DuBois, and awarded $23
    million in damages for Ford’s infringement. Jury Verdict,
    Krippelz (N.D. Ill. Dec. 12, 2008), ECF No. 429. Following
    a bench trial on willfulness, the court found Ford’s
    infringement willful and awarded Mr. Krippelz a further
    $11.7 million in prejudgment interest and another $21
    million in enhanced damages. See Krippelz, 
    670 F. Supp. 2d
    806 (N.D. Ill. Nov. 18, 2009) (concerning willfulness);
    Krippelz, 
    670 F. Supp. 2d
    815 (N.D. Ill. Nov. 18, 2009)
    (concerning damages); Krippelz, 
    675 F. Supp. 2d 881
    (N.D. Ill. Nov. 18, 2009) (making fact findings and
    conclusions of law).
    Ford moved for judgment of invalidity as a matter of
    law; its motion was denied. Krippelz, 
    750 F. Supp. 2d 938
    (N.D. Ill. Oct. 28, 2010) [hereinafter JMOL Op.]. Ford
    timely appealed. This court has jurisdiction under 28
    U.S.C. § 1295(a)(1).
    7                                 KRIPPELZ   v. FORD MOTOR CO
    II
    We hold that the district court committed reversible
    error in denying JMOL of invalidity by anticipation over
    DuBois, and so reverse. This court reviews denial of a
    motion for JMOL under the law of the pertinent regional
    circuit, here the Seventh. Seachange Int’l, Inc. v. C-COR
    Inc., 
    413 F.3d 1361
    , 1367–68 (Fed. Cir. 2005). In that
    circuit, an appellate court’s inquiry into the denial of a
    JMOL motion is “limited to the question whether the
    evidence presented, combined with all reasonable
    inferences permissibly drawn therefrom, is sufficient to
    support the verdict when viewed in the light most
    favorable to the party against whom the motion is
    directed.” Campbell v. Miller, 
    499 F.3d 711
    , 716 (7th Cir.
    2007) (internal quotation marks omitted). Such review is
    de novo. Waters v. City of Chicago, 
    580 F.3d 575
    , 580 (7th
    Cir. 2009). Reversal is warranted only if no reasonable
    juror could have found for the nonmoving party. 
    Id. To show
    that a patent claim is invalid as anticipated, the
    accused infringer must show by clear and convincing
    evidence that a single prior art reference discloses each
    and every element of a claimed invention.           Silicon
    Graphics, Inc. v. ATI Techs., Inc., 
    607 F.3d 784
    , 796 (Fed.
    Cir. 2010).
    In this case, the district court supported its denial of
    JMOL with two potential grounds on which a jury could
    find for Mr. Krippelz. First, the court held that a
    reasonable jury could find that DuBois failed to teach the
    required “conical beam of light.” Second, the court held
    that a reasonable jury could find that DuBois lacked the
    required lamp “adjacent to the window.” See JMOL 
    Op., 750 F. Supp. 2d at 943
    –46. We reject both grounds as
    unsupported by the evidence.
    KRIPPELZ   v. FORD MOTOR CO                               8
    A
    We turn first to the “conical beam of light.” The trial
    court construed this term to mean “a beam of light that
    diverges,” and it construed “beam of light” to mean “light
    that both is directed and has a defined sweep range.” 
    Id. at 944.
    We see no error in these constructions, and the
    parties do not contest them per se. However, the district
    court made further statements concerning the
    interpretation of these terms that require a detailed look
    at the ’903 patent’s intrinsic evidence. See Phillips v.
    AWH Corp., 
    415 F.3d 1303
    , 1317 (Fed. Cir. 2005) (en
    banc).
    When instructing the jury, the district court stated
    that proving the presence of “directed” light—which was a
    prerequisite to showing a “conical beam of light”—
    required proof that “the filament of the light bulb is at or
    near the focal point of an optical reflector.” Trial Tr.
    961:16–18, J.A. 9597. It further told the jury that
    “parabolic and elliptical reflectors are types of optical
    reflectors.” 
    Id. at 961:18–19,
    J.A. 9597. These statements
    correctly interpreted claim 2’s requirements. 3
    The ’903 specification is a single page in length. Its
    most substantive discussion concerning the “conical beam
    of light” comes in its disclosure of a preferred
    embodiment:
    3    As discussed supra note 2, we decline to take up
    and express no opinion on the district court’s claim con-
    structions affecting its infringement analysis. Those
    constructions do not affect either the district court’s
    judgment as to validity, or our analysis herein.
    9                                  KRIPPELZ   v. FORD MOTOR CO
    As best shown in Fig. 4, a source of light in
    the form of a light bulb 20 is mounted in the
    rearview mirror assembly 14 directly behind a
    mirror 22 which faces towards the rear of the
    vehicle. A circular opening 24 is provided in the
    bottom of the housing 25, and the light source 20,
    which is suitably mounted in the housing 25 for
    access through the opening 24, directs a conical
    beam of light onto the pavement 12 immediately
    adjacent to the vehicle. A light source identical to
    the source 20 is similarly mounted in the rearview
    mirror assembly 18 on the passenger side of the
    vehicle, and it also directs a conical beam of light
    28 onto the pavement 12 adjacent to the
    passenger side of the vehicle. The beams 26 and
    28 have an included angle of approximately thirty
    degrees, and consequently, they do not shine into
    the car 10 nor do they radiate any light which
    shines directly toward any approaching vehicles.
    ’903 patent col.2 ll.19–37 (emphases added). The ’903
    patent description thus includes no reference to the focal
    points of a reflector, or to the reflector’s shape as elliptical
    or parabolic. Similarly, the prosecution history of the ’903
    patent on initial examination is bereft of such discussion.
    Were we to consider the ’903 patent’s specification and
    initial prosecution history alone, then, we would find it
    difficult to affirm the district court’s holding that the term
    “beam of light” incorporates requirements concerning the
    shape and focal point of the reflector.
    But references to such requirements emerged while
    the ’903 patent was under reexamination at the PTO. A
    patentee’s statements during reexamination can be
    considered during claim construction, in keeping with the
    doctrine of prosecution disclaimer.      Am. Piledriving
    KRIPPELZ   v. FORD MOTOR CO                                10
    Equip., Inc. v. Geoquip, Inc., 
    637 F.3d 1324
    , 1336 (Fed.
    Cir. 2011).
    During reexamination, the Examiner rejected claim 2
    as obvious over two references, “Kim” and “Matsuda.” 4
    Mr. Krippelz appealed to the Board of Patent Appeals and
    Interferences. Endeavoring to traverse the rejection, Mr.
    Krippelz attacked Kim: “The device of Kim does not
    produce a beam of light. Rather, the light produced by
    the Kim device is very diffuse and not collimated and
    consequently not a beam of light.” Krippelz Reexam.
    Appeal Br., supra note 4, at 7 (emphasis added). Mr.
    Krippelz also directed the Board’s attention to a prior art
    statement that “In a bulb and reflector system, a filament
    of the bulb is placed at or near a focal point of a reflector.
    The light emitted by the bulb filament is collected by the
    reflector and reflected outward to form a light beam.” 
    Id. (quoting U.S.
    Patent No. 5,365,412 (filed Jan. 7, 1993)
    (issued Nov. 15, 1994) col.1 ll.13–17) (emphases added).
    Mr. Krippelz submitted a declaration from Dr.
    Richard Hansler—the same expert who Mr. Krippelz
    would subsequently call to testify at trial in this case and
    whose expert opinions Mr. Krippelz offered to the district
    court on summary judgment. Mr. Krippelz’s appeal brief
    quoted Dr. Hansler’s declaration: “[T]he reflecting surface
    of Kim lacks sufficient symmetry to produce a beam of
    light, which typically has the light bulb at or near the
    4   Matsuda” is Japanese Patent No. 62-102739 to
    Matsuda. “Kim” is abandoned Korea Model Utility Patent
    Application No. 4543/84 to Kim. See Kim (trans.), in-
    cluded in Krippelz Appeal Br. (Oct. 30, 2000), Ex. E, ’903
    Reexam. File Hist. [hereinafter Krippelz Reexam. Appeal
    Br.].
    11                                KRIPPELZ   v. FORD MOTOR CO
    focal point of a reflector.” Krippelz Reexam. Appeal Br. at
    8 (emphasis added).
    In response, the Examiner maintained his position
    that the claim was obvious. Mr. Krippelz’s reply repeated
    his belief that the combination failed to teach the required
    “beam of light,” and continued to focus on Kim. He
    submitted further quotations from Dr. Hansler’s
    declaration:
    [T]he device disclosed in Kim does not appear to
    be a parabolic reflector or other optical reflective
    surface. It appears rather that the shape of the
    reflector of Kim, assuming that the internal
    surfaces are reflective, corresponds to the shape of
    the shroud or cover, the interior surface of which
    does not appear to be an optical surface that could
    be used to create a beam of light.
    Krippelz Appeal Reply Br. (Apr. 2, 2001), at 8, ’903
    Reexam. File Hist.
    As mentioned above, the Board subsequently reversed
    the Examiner and confirmed the patentability of claim 2.
    Ex parte Krippelz, No. 2001-1441, slip op., J.A. 13073
    (B.P.A.I. Feb. 25, 2002).
    Mr. Krippelz’s statements are of course now part of
    the intrinsic record. Taking them into account, we agree
    with the district court that the term “conical beam of
    light,” as used in the ’903 patent and in light of Mr.
    Krippelz’s arguments during reexamination, incorporates
    limitations as to the shape of the reflector and the
    positioning of the light source relative to it. As a result of
    these statements, As a result of these statements, Mr.
    Krippelz disclaimed lamps lacking these limitations, and
    KRIPPELZ   v. FORD MOTOR CO                               12
    the limitations therefore became part of the properly-
    construed claims. As the district court properly concluded,
    Mr. Krippelz’s claimed invention thus requires (1) a
    reflector having a focal point, such as a parabolic or
    elliptical reflector, and (2) positioning of the light source
    at or near the reflector’s focal point. We therefore affirm
    the district court’s construction of “conical beam of light.”
    Having determined that the district court properly
    construed the claim, we nevertheless find reversible error
    in its holding that a reasonable jury could find that
    DuBois lacked the required disclosure. DuBois expressly
    teaches that, with respect to the Figure 17 diagram, its
    lamp could “include a bulb 27 at the focus of a reflector
    28[,] the shell of which includes a prolongation 29 forming
    a screen to prevent the light rays from directly striking
    the eyes of a driver or pedestrian positioned in front of or
    behind the vehicle.” DuBois (trans.) at 2, J.A. 13432
    (emphasis added). This language expressly satisfies the
    requirement of a light beam that is both directed and that
    is generated by a bulb-reflector combination in which the
    bulb is located at the focal point of the reflector. DuBois
    further teaches that its light could be a “headlight,” which
    dovetails    neatly     with    Mr.    Krippelz’s    express
    acknowledgement that, in the bulb-reflector combination
    producing the required light beam, “The reflector element
    can be part of the light bulb, as in a spot light type of
    lamp bulb.” See Krippelz Reexam. Appeal Br. at 3.
    In denying JMOL, the district court cited several
    varieties of evidence to overcome these disclosures in
    DuBois. But that evidence, whether viewed separately or
    collectively, was legally insufficient to support a judgment
    for Krippelz.
    13                               KRIPPELZ   v. FORD MOTOR CO
    First, the district court cited the testimony of Dr.
    Hansler, the expert called by Mr. Krippelz, concerning
    “ray traces” he had performed on a lamp diagram in
    DuBois. See DuBois fig.17, J.A. 12489; see also Trial Tr.
    510:17–511:13, J.A. 9012–13. Dr. Hansler testified that
    he had measured the diagram and, from those
    measurements, extrapolated the angles of incidence and
    reflection that would result if a lamp were built to those
    measurements. Dr. Hansler opined that the light from
    such a lamp would scatter, and so not produce the
    required “conical beam of light.” Trial Tr. 511:12–13, J.A.
    9013. The district court cited this testimony as support
    for the jury’s verdict. JMOL 
    Op., 750 F. Supp. 2d at 944
    .
    This court has repeatedly cautioned against overreli-
    ance on drawings that are neither expressly to scale nor
    linked to quantitative values in the specification. See
    Nystrom v. TREX Co., 
    424 F.3d 1136
    , 1149 (Fed. Cir.
    2005); Hockerson-Halberstadt, Inc. v. Avia Grp. Int’l, Inc.,
    
    222 F.3d 951
    , 956 (Fed. Cir. 2000); In re Wright, 
    569 F.2d 1124
    , 1127 (CCPA 1977). However, Ford does not appeal,
    and so we do not take up, the trial court’s denial of Ford’s
    motion to exclude Dr. Hansler’s ray trace diagrams. See
    Tr. of Dec. 8, 2008 Proceedings, at 39:19–22, J.A. 8349,
    8387. In light of Ford’s decision to not appeal the admis-
    sion of this evidence, it was properly before the jury. On
    the basis of Dr. Hansler’s testimony, we cannot say that
    no reasonable jury could have concluded that Figure 17’s
    disclosure was not anticipating.
    Nevertheless, it was reversible error for the district
    court to hold the jury’s verdict sustainable on this
    testimony because Figure 17 depicts just one embodiment
    of the DuBois invention. DuBois expressly states that
    other embodiments could use lamps in addition to the one
    disclosed in its figures, including “a headlight, parking
    KRIPPELZ   v. FORD MOTOR CO                               14
    light, or other body light.” DuBois at 2, J.A. 13432. The
    evidence at trial—including testimony from Dr. Hansler
    himself—was that a headlight (as that word was used in
    DuBois) creates a “beam of light.” Trial Tr. 531:25–532:2,
    J.A. 9033–34. Dr. Hansler’s “ray trace” diagrams of figure
    17 notwithstanding, there is no question that DuBois’s
    disclosure of a “headlight” teaches the required “beam of
    light.”
    Dr. Hansler also opined to the jury that any beam in
    DuBois, even if it was a beam, did not anticipate because
    it was not necessarily “conical.” He pointed to DuBois’s
    discussion of “lighting the pavement obliquely on the
    surface of a rectangle” adjacent to the vehicle. JMOL 
    Op., 750 F. Supp. 2d at 945
    ; see also DuBois (trans.) at 2, J.A.
    13432. Dr. Hansler testified that it is “not possible” for a
    conical beam of light to illuminate a rectangle. Trial Tr.
    555:14–19, J.A. 9957. While expressing some skepticism
    about this reasoning, the district court nevertheless held
    that a jury could reasonably agree with it.
    We disagree as a matter of law. While DuBois
    discusses illuminating the area within a rectangle on the
    pavement next to the car, nowhere does it require that
    such illumination be only with non-conical light beams.
    Indeed, many figures in DuBois depict triangles of light
    extending from various lamps to the surface of the
    ground. There is no language in DuBois disavowing the
    most natural interpretation of those triangles, i.e., as two-
    dimensional depictions of light cones. Further, there are
    numerous disclosures in DuBois of using multiple lamps
    to illuminate the target area. This undermines Dr.
    Hansler’s testimony that “[a] conical beam of light such as
    one gets from a flashlight would not be capable of
    illuminating a large area.” Trial Tr. 512:20–24, J.A. 9014.
    Taken as a whole, Dr. Hansler’s testimony that the
    15                                KRIPPELZ   v. FORD MOTOR CO
    “conical” limitation was unsatisfied failed to take into
    account the entire DuBois disclosure.           His generic
    statements that the “conical” limitation was unmet were
    therefore too conclusory to sustain the jury’s verdict. 5 See
    Sitrick v. Dreamworks, LLC, 
    516 F.3d 993
    , 1001 (Fed. Cir.
    2008) (holding, on summary judgment, that such
    conclusory testimony could not create a triable issue of
    fact).
    Finally, the court cited testimony from Mr. Krippelz’s
    expert that a conical beam of light “probably wouldn’t be a
    very effective way to accomplish the purpose of DuBois,”
    and from that reasoned that the jury could reasonably
    have held that DuBois “actually teaches away from using
    a beam.” JMOL 
    Op., 750 F. Supp. 2d at 945
    –46. First
    and foremost, teaching away is not relevant to an
    anticipation analysis; it is only a component of an
    obviousness analysis. Celeritas Techs., Ltd. v. Rockwell
    Int’l Corp., 
    150 F.3d 1354
    , 1361 (Fed. Cir. 1998).
    Secondly, the opinions of Dr. Hansler are not a substitute
    for the actual DuBois disclosure. When all elements of
    the device are shown in a single prior art reference, as
    here, the question of “teaching away” does not arise.
    We thus conclude that the district court committed
    clear error in denying JMOL on the basis of DuBois’s
    putative failure to disclose the required “conical beam of
    light.”
    5  Though it is unnecessary to reach the issue here,
    we further believe that the requirement of a light beam
    that is “conical” (ignoring, for the moment, the reasons
    just discussed why DuBois satisfies that limitation) would
    almost certainly be an obvious modification to DuBois
    precluding patentability under 35 U.S.C. § 103.
    KRIPPELZ   v. FORD MOTOR CO                            16
    B
    The court’s holding that the jury could have
    reasonably found DuBois to lack a lamp “adjacent to the
    window” was also reversible error. Figures 5 and 6 of
    DuBois plainly show such a lamp:
    DuBois (trans.) figs. 5, 6, J.A. 13435. The district court
    again quoted Dr. Hansler, who “testified that while in one
    illustrated position the device ‘might be’ adjacent, ‘it
    certainly is not clearly adjacent to a side window.’” JMOL
    
    Op., 750 F. Supp. 2d at 944
    (emphasis added). As already
    mentioned, the conclusory testimony of an expert witness,
    however, cannot create an issue of fact if none otherwise
    exists. 
    Sitrick, 516 F.3d at 1001
    . There is no question
    that a person of ordinary skill, reviewing these figures,
    would understand them to show mounting the lamp
    adjacent to the side window.
    We therefore conclude that the district court erred in
    denying Ford’s motion for JMOL of invalidity. 6 That
    6    Over the course of the trial, the district court
    barred Ford from presenting to the jury arguments for
    possible invalidity over a separate reference, referred to
    in the briefing as “Miazzo.” Because we conclude that
    claim 2 is invalid over DuBois, the question of whether
    the district court was or was not entitled to remove Mi-
    azzo from the case is moot, and we decline to address it.
    17                                KRIPPELZ   v. FORD MOTOR CO
    decision is therefore reversed.    Claim 2 is invalid for
    anticipation by DuBois.
    III
    Because claim 2 of the ’903 patent is invalid, we need
    not reach the other issues put forward by the parties, i.e.,
    the district court’s summary judgment of infringement
    and its willfulness analysis. Those decisions are now
    moot and as such are vacated.
    We therefore reverse the district court’s denial of
    JMOL of invalidity, vacate its summary judgment of
    infringement and its willfulness analysis, and remand for
    entry of judgment of non-liability for Ford.
    REVERSED-IN-PART, VACATED-IN-PART, AND
    REMANDED