Shaw Industries Group, Inc. v. Automated Creel Systems, Inc. , 817 F.3d 1293 ( 2016 )


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  •   United States Court of Appeals
    for the Federal Circuit
    ______________________
    SHAW INDUSTRIES GROUP, INC.,
    Appellant
    v.
    AUTOMATED CREEL SYSTEMS, INC.,
    Cross-Appellant
    ______________________
    2015-1116, 2015-1119
    ______________________
    Appeals from the United States Patent and Trade-
    mark Office, Patent Trial and Appeal Board in Nos.
    IPR2013-00132, IPR2013-00584.
    ______________________
    Decided: March 23, 2016
    ______________________
    THAD CHARLES KODISH, Fish & Richardson, P.C., At-
    lanta, GA, argued for appellant. Also represented by ERIN
    ALPER; JOHN A. DRAGSETH, Minneapolis, MN.
    SCOTT D. SMILEY, The Concept Law Group, P.A., Fort
    Lauderdale, FL, argued for cross-appellant. Also repre-
    sented by MARK C. JOHNSON.
    MONICA BARNES LATEEF, Office of the Solicitor, United
    States Patent and Trademark Office, Alexandria, VA,
    argued for intervenor Michelle K. Lee. Also represented
    2       SHAW INDUSTRIES GROUP       v. AUTOMATED CREEL SYSTEMS
    by NATHAN K. KELLEY, SCOTT WEIDENFELLER, WILLIAM
    LAMARCA.
    ______________________
    Before MOORE, REYNA, and WALLACH, Circuit Judges.
    Opinion for the court filed by Circuit Judge MOORE.
    Opinion concurring specially in the judgment filed by
    Circuit Judge REYNA.
    MOORE, Circuit Judge.
    Shaw Industries Group, Inc. appeals from the United
    States Patent and Trademark Office’s (“PTO”) Patent
    Trial and Appeal Board’s (“Board”) final written decision
    in consolidated inter partes reviews (“IPR”) of claims 1–21
    of 
    U.S. Patent No. 7,806,360
    . Shaw also petitions for writ
    of mandamus. Automated Creel Systems (“ACS”) cross-
    appeals. We affirm-in-part, vacate-in-part, and remand.
    We deny Shaw’s petition for writ.
    BACKGROUND
    ACS is the owner of the ’360 patent, which relates to
    “creels” for supplying yarn and other stranded materials
    to a manufacturing process. ’360 patent, col. 1, ll. 14–17.
    An exemplary creel supply system of the patent comprises
    creel magazines with a stationary frame and two movable
    carts. 
    Id.
     at figs. 1, 12; col. 3, ll. 18–19, 59–61. The carts
    carry multiple levels of spools (or packages) of stranded
    material that can be routed using guides. 
    Id.
     at col. 3,
    ll. 62–63.    Continuous runtime can be achieved by
    (1) tying the material from various packages together,
    and (2) replenishing empty packages on one cart while
    packages on the opposite cart are used. 
    Id.
     at col. 8,
    ll. 32–41; col. 9, l. 64 to col. 10, l. 16; col. 11, l. 1 to col. 12,
    l. 16.
    Claims 1–5, 8–12, 14, 19, and 20 (“the non-interposing
    claims”) involve creel magazines with two packages of
    SHAW INDUSTRIES GROUP   v. AUTOMATED CREEL SYSTEMS       3
    stranded material at each level. They allow for transfer of
    stranded material from one package to another across the
    frame. For example, claim 5 recites:
    5. A creel magazine for feeding stranded material
    to a manufacturing process comprising:
    a magazine having a stationary magazine
    frame comprising a common guide for said
    stranded material;
    a first and a second removable cartridge
    positioned adjacent said magazine frame
    on respective opposite sides of said maga-
    zine frame,
    said first removable cartridge having at
    least one support arm supporting an ac-
    tive package of stranded material thereon;
    said second removable cartridge having at
    least one support arm supporting a ready
    package of stranded material thereon
    wherein a trailing end of said stranded
    material carried by said active package is
    connected to a leading end of said strand-
    ed material carried by said ready package;
    wherein said common guide is an annular
    turning surface and said stranded materi-
    al is sequentially fed to said common
    guide from said active package then from
    said ready package.
    Claims 6, 7, 13, 15–18, and 21 (“the interposing
    claims”) involve creel magazines with more than two
    packages of stranded material at each level. They allow
    for transfer of stranded material from one package to
    another across the frame (like the non-interposing
    claims), as well as on the same side of the frame. For
    example, claim 6 recites:
    4       SHAW INDUSTRIES GROUP   v. AUTOMATED CREEL SYSTEMS
    6. The creel magazine of claim 5, further compris-
    ing an additional support arm supported adjacent
    to said at least one support arm for supporting an
    additional ready package on said removable car-
    tridge, to be selectively interposed between said
    active package and said ready package on said
    second removable cartridge to feed said stranded
    material.
    In February 2012, ACS sued Shaw for infringement of
    the ’360 patent in the U.S. District Court for the Northern
    District of Georgia. Automated Creel Sys., Inc. v. Shaw
    Indus. Grp., Inc., No. 1:12-cv-00424-RWS (N.D. Ga. 2012).
    ACS voluntarily dismissed the suit without prejudice.
    Within one year of service of the complaint, see 
    35 U.S.C. § 315
    (b), Shaw petitioned for IPR of all twenty-one of the
    ’360 patent claims. Shaw proposed fifteen grounds of
    rejection. Most of the grounds were directed to the non-
    interposing claims. There were only three grounds di-
    rected at the interposing claims: (1) ground 3, alleging
    that all of the interposing claims would have been obvious
    over     German       Patent     Application     Publication
    DE 3429153 A1 (“Munnekehoff”) in view of 
    U.S. Patent No. 5,624,082
     (“Ligon”); (2) ground 8, alleging that all of
    the interposing claims would have been obvious over
    German Patent DE 7413531 (“Barmag”) in view of Ligon;
    and (3) ground 11, alleging that all of the interposing
    claims were anticipated by 
    U.S. Patent No. 4,515,328
    (“Payne”) (“the Payne-based ground”). The Board insti-
    tuted IPR on all claims except claim 4. 1 It did not, how-
    ever, institute IPR on all fifteen grounds argued by Shaw.
    With regard to the interposing claims, the Board institut-
    ed IPR on the grounds that these claims would have been
    1   The Board held that Shaw did not demonstrate a
    reasonable likelihood of prevailing on its grounds with
    regard to claim 4.
    SHAW INDUSTRIES GROUP   v. AUTOMATED CREEL SYSTEMS        5
    obvious over Munnekehoff or Barmag in view of Ligon
    (grounds 3 and 8, respectively). Shaw Indus. Grp., Inc. v.
    Automated Creel Sys., Inc., No. IPR2013-00132, 
    2013 WL 8563792
     (P.T.A.B. July 25, 2013) (“First Institution
    Decision”). The Board denied Shaw’s petition on the
    Payne-based ground. The Board explained that the
    Payne-based ground was “denied as redundant in light of
    [its] determination that there is a reasonable likelihood
    that the challenged claims are unpatentable based on the
    grounds of unpatentability on which we institute an inter
    partes review.” 
    Id.
     at *20 (citing 
    37 C.F.R. § 42.108
    ).
    There were no substantive determinations of the Payne-
    based ground in the Board decision.
    In September 2013 (over one year after service of the
    complaint), Shaw filed a second petition, requesting IPR
    of claim 4. The Board instituted IPR based on two of the
    six grounds proposed by Shaw—alleged obviousness over
    Munnekehoff in view of 
    U.S. Patent No. 4,572,458
    (“Bluhm”) (ground 3) and alleged obviousness over Bar-
    mag in view of Bluhm (ground 6). Shaw Indus. Grp., Inc.
    v. Automated Creel Sys., Inc., No. IPR2013-00584, 
    2013 WL 8595536
     (P.T.A.B. Dec. 31, 2013) (“Second Institution
    Decision”). It denied the other proposed grounds, writing
    that it “exercise[d] [its] discretion under 
    37 C.F.R. § 42.108
     to institute an inter partes review based solely on
    the asserted grounds directed to combinations with
    Bluhm and deny the remaining grounds as redundant.”
    
    Id.
     at *12–13. It rejected ACS’s argument that 
    35 U.S.C. § 315
    (b) precluded it from instituting IPR. It determined
    that because ACS had voluntarily dismissed the suit
    without prejudice, it “nullifie[d] the effect of the alleged
    service of the complaint on Petitioner.” 
    Id. at *6
    .
    The two IPRs proceeded in parallel. The Board then
    consolidated them and issued one final written decision,
    concluding that Shaw (1) had not shown by a preponder-
    ance of the evidence that the interposing claims were
    unpatentable based on the instituted grounds, and (2) had
    6      SHAW INDUSTRIES GROUP    v. AUTOMATED CREEL SYSTEMS
    shown by a preponderance of the evidence that the non-
    interposing claims (including claim 4) were unpatentable
    based on the instituted grounds. Shaw Indus. Group, Inc.
    v. Automated Creel Sys., Inc., Nos. IPR2013-00132,
    IPR2013-00584, 
    2014 WL 3725531
     (P.T.A.B. July 24,
    2014) (“Final Decision”). Shaw appeals as to the interpos-
    ing claims and ACS appeals as to claim 4. The PTO
    submitted a brief (“PTO Br.”) and presented oral argu-
    ment as intervenor. See 
    35 U.S.C. § 143
    .
    DISCUSSION
    I. SHAW’S APPEAL AND PETITION FOR WRIT
    A
    Under 
    28 U.S.C. § 1295
    (a)(4), we have jurisdiction to
    review the Board’s final written decisions in IPRs. St.
    Jude Med., Cardiology Div., Inc. v. Volcano Corp., 
    749 F.3d 1373
    , 1376 (Fed. Cir. 2014); see also 
    35 U.S.C. § 141
    (c) (“A party to an inter partes review who is dissat-
    isfied with the final written decision of the Patent Trial
    and Appeal Board under section 318(a) or 328(a) may
    appeal the Board’s decision only to the United States
    Court of Appeals for the Federal Circuit.”); 
    id.
     § 319 (“A
    party dissatisfied with the final written decision of the
    Patent Trial and Appeal Board under section 318(a) may
    appeal the decision pursuant to sections 141 through
    144.”). We lack jurisdiction, however, to review the
    Board’s decisions instituting or denying IPR. St. Jude,
    749 F.3d at 1376; see also 
    35 U.S.C. § 314
    (d) (“The deter-
    mination by the Director whether to institute an inter
    partes review under this section shall be final and nonap-
    pealable.”). This is true regardless of whether the Board
    has issued a final written decision. In re Cuozzo Speed
    Techs., LLC, 
    793 F.3d 1268
    , 1273 (Fed. Cir. 2015), cert.
    granted sub nom. Cuozzo Speed Techs., LLC v. Lee, 
    136 S. Ct. 890
     (U.S. Jan. 15, 2016) (No. 15-446).
    SHAW INDUSTRIES GROUP   v. AUTOMATED CREEL SYSTEMS         7
    Shaw argues we have jurisdiction to review the
    Board’s final written decision, including its decision not to
    consider the Payne-based ground as redundant. Appel-
    lant’s Opening Br. 58. It argues that § 314(d) is inappli-
    cable because it is not seeking review of the Board’s
    institution decision, but rather asking us “to review the
    Board’s authority, and correctness in exercising the same,
    in deeming a subset of asserted grounds redundant of
    instituted grounds.” Appellant’s Reply Br. 65. It argues
    that “whether the Board can deem grounds ‘redundant,’
    and whether the Board properly exercised that authority,
    is not a decision whether to institute.” Id.
    We disagree. As we recently explained, Congress au-
    thorized the PTO to prescribe regulations regarding
    institution and governance of inter partes reviews. Har-
    monic Inc. v. Avid Tech., Inc., No. 15-1072, 
    2016 WL 798192
    , at *8 (Fed. Cir. Mar. 1, 2016). The PTO exercised
    this authority in promulgating 
    37 C.F.R. § 42.108
    , which
    allows the Board to institute IPR on only some of the
    challenged claims and to institute IPR of a given claim
    based on only some of the proposed grounds. 
    Id.
     (citing 
    37 C.F.R. § 42.108
    (a), (b)).
    We can see benefit in the PTO having the ability to
    institute IPR on only some of the claims and on only some
    of the proposed grounds, particularly given the Board’s
    statutory obligation to complete proceedings in a timely
    and efficient manner. 
    35 U.S.C. § 316
    . For example, in
    Liberty Mutual Insurance Co. v. Progressive Casualty
    Insurance Co., No. CBM2012-00003, 
    2012 WL 9494791
    , at
    *1 (P.T.A.B. Oct. 25, 2012), the petitioner presented over
    four-hundred grounds of unpatentability for twenty
    patent claims. The Board determined that “numerous
    redundant grounds would place a significant burden on
    the Patent Owner and the Board, and would cause unnec-
    essary delays.” 
    Id.
     It wrote that “multiple grounds,
    which are presented in a redundant manner by a peti-
    tioner who makes no meaningful distinction between
    8       SHAW INDUSTRIES GROUP   v. AUTOMATED CREEL SYSTEMS
    them, are contrary to the regulatory and statutory man-
    dates, and therefore are not all entitled to consideration.”
    
    Id. at *2
    . The Board made specific findings that certain
    groups of grounds were redundant. It ordered the Peti-
    tioner to choose which ground in each group to maintain,
    and even explained which ground it would proceed with if
    the Petitioner did not choose. The PTO has made similar
    constraints in prosecution by requiring applicants to
    narrow the number of claims they wish to prosecute. See,
    e.g., Hyatt v. U.S. Patent & Trademark Office, 
    797 F.3d 1374
    , 1376 (Fed. Cir. 2015) (discussing the PTO’s re-
    quirement that the patentee select some of the hundreds
    of thousands of claims to prosecute, absent a showing that
    more claims were necessary).
    Here, Shaw proposed three grounds of unpatentability
    for the interposing claims: the Payne-based anticipation
    ground and two other multiple reference obviousness
    grounds. The Board did not consider the substance of the
    Payne reference or compare it to the art cited in the other
    two proposed grounds. 2 It made no specific findings that
    the three grounds overlapped with one another or in-
    2    We understood the Board’s “redundancy” denial to
    amount to nothing more than a choice by the Board for
    efficiency purposes not to review three different grounds
    as to the interposing claims. Though it is not entirely
    clear, we did not read the Board’s opinion as deciding any
    substantive issues with regard to the Payne grounds. For
    example, the denial is not a determination that the IPR
    standard is not met as to the Payne grounds. Nor is it a
    determination of substantive redundancy with regard to
    Payne and Munnekehoff or Barmag. The PTO confirmed
    our understanding of the denial of the Payne-based
    grounds during oral argument. Oral argument at 31:23–
    32:59, 38:18–38:21, available at http://oralarguments.cafc.
    uscourts.gov/default.aspx?fl=2015-1116.mp3.
    SHAW INDUSTRIES GROUP   v. AUTOMATED CREEL SYSTEMS      9
    volved overlapping arguments. It did not order Shaw to
    either choose which ground to maintain or show that the
    grounds were not, in fact, redundant. 3 Instead, the Board
    merely denied IPR of the claims based on the Payne-based
    ground, writing without making any specific findings that
    the ground was “redundant” of the other two grounds. We
    cannot say we agree with the PTO’s handling of Shaw’s
    petition. We also cannot say that the PTO’s decision
    made the proceeding more efficient, particularly given
    that the Payne-based ground was alleged anticipation by
    a single reference while the two instituted grounds were
    alleged obviousness over combinations of references.
    We have no authority, however, to review the Board’s
    decision to institute IPR on some but not all grounds.
    “Denial of a ground is a Board decision not to institute
    inter partes review on that ground.”            
    37 C.F.R. § 42.108
    (b). We thus lack jurisdiction to review the
    Board’s decision not to institute IPR on the Payne-based
    ground, which includes its decision not to consider the
    Payne-based ground in its final written decision.
    B
    Shaw alternatively petitions for a writ of mandamus
    instructing the PTO to reevaluate its redundancy decision
    and to institute IPR based on the Payne-based ground. A
    3    In its second IPR petition, Shaw preemptively ar-
    gued that the proposed grounds there were not redun-
    dant.    Petition for IPR, Shaw Indus. Grp., Inc. v.
    Automated Creel Sys., Inc., No. IPR2013-00584 (Sept. 13,
    2013) (J.A. 1085–132). The Board did not address the
    argument. As in the first institution decision, the Board
    merely denied IPR on four of the proposed grounds,
    writing without any specific findings that they were
    “redundant” of the other two. Second Institution Deci-
    sion, 
    2013 WL 8595536
    , at *12.
    10      SHAW INDUSTRIES GROUP   v. AUTOMATED CREEL SYSTEMS
    writ of mandamus is a “drastic and extraordinary reme-
    dy” that can only be used in “exceptional circumstances
    amounting to a judicial usurpation of power or a clear
    abuse of discretion.” Cheney v. U.S. Dist. Court for D.C.,
    
    542 U.S. 367
    , 380 (2004) (internal quotations omitted). A
    writ requires (1) that the petitioner have no other ade-
    quate means to attain the desired relief, (2) that the
    petitioner have a “clear and indisputable” right to the
    writ, and (3) that the issuing court, in the exercise of its
    discretion, be satisfied that the writ is appropriate under
    the circumstances. 
    Id.
    Shaw argues that these three conditions are satisfied.
    First, it argues it has no other means to attain the desired
    relief “since review by appeal is unavailable.” Pet. 5
    (quoting Cuozzo, 793 F.3d at 1275). It argues that be-
    cause it brought the Payne-based ground in its petition
    and the PTO denied IPR on that ground, it may be es-
    topped from arguing the ground in any future proceed-
    ings. Second, Shaw argues that it has a “clear and
    indisputable right” to have the PTO consider a reasonable
    number of grounds and references given the “estoppel
    rules.” Id. at 4 (quoting Cheney, 
    542 U.S. at 380
    ). Third,
    it argues that we should find in our discretion that the
    writ is appropriate.
    Shaw’s argument is predicated on its concern that the
    statutory estoppel provisions would prevent it from rais-
    ing the Payne-based ground in future proceedings. Sec-
    tion 315(e) of Title 35 provides:
    (1) Proceedings before the Office.–The petitioner
    in an inter partes review of a claim in a patent
    under this chapter that results in a final written
    decision under section 318(a) . . . may not request
    or maintain a proceeding before the Office with
    respect to that claim on any ground that the peti-
    tioner raised or reasonably could have raised dur-
    ing that inter partes review.
    SHAW INDUSTRIES GROUP   v. AUTOMATED CREEL SYSTEMS          11
    (2) Civil actions and other proceedings.—The peti-
    tioner in an inter partes review of a claim in a pa-
    tent under this chapter that results in a final
    written decision under section 318(a) . . . may not
    assert in either a civil action arising in whole or in
    part under section 1338 of title 28 or in a proceed-
    ing before the International Trade Commission
    under section 337 of the Tariff Act of 1930 that
    the claim is invalid on any ground that the peti-
    tioner raised or reasonably could have raised dur-
    ing that inter partes review.
    
    35 U.S.C. § 315
    (e) (emphasis added). The PTO argues
    that Shaw’s statutory interpretation of the estoppel
    provision is incorrect because “the denied ground never
    became part of the IPR.” PTO Br. 38. We agree with the
    PTO that § 315(e) would not estop Shaw from bringing its
    Payne-based arguments in either the PTO or the district
    courts. Both parts of § 315(e) create estoppel for argu-
    ments “on any ground that the petitioner raised or rea-
    sonably could have raised during that inter partes
    review.” Shaw raised its Payne-based ground in its
    petition for IPR. But the PTO denied the petition as to
    that ground, thus no IPR was instituted on that ground.
    The IPR does not begin until it is instituted. See Cuozzo,
    793 F.3d at 1272 (“IPRs proceed in two phases. In the
    first phase, the PTO determines whether to institute IPR.
    In the second phase, the Board conducts the IPR proceed-
    ing and issues a final decision.” (citations omitted)).
    Thus, Shaw did not raise—nor could it have reasonably
    raised—the Payne-based ground during the IPR. The
    plain language of the statute prohibits the application of
    estoppel under these circumstances. In light of our con-
    struction of the statute, mandamus is not warranted.
    Thus, we deny Shaw’s petition for writ of mandamus.
    12     SHAW INDUSTRIES GROUP     v. AUTOMATED CREEL SYSTEMS
    C
    We turn now to Shaw’s challenges to the Board’s de-
    termination that Shaw had not shown by a preponderance
    of the evidence that the interposing claims would have
    been obvious over Munnekehoff or Barmag in view of
    Ligon. We review the Board’s ultimate conclusion of
    obviousness de novo and its factual findings for substan-
    tial evidence. In re Gartside, 
    203 F.3d 1305
    , 1316 (Fed.
    Cir. 2000). The parties do not dispute that Munnekehoff
    taught all of the limitations of the interposing claims
    except the transfer of stranded material from one package
    to another on the same side of the frame. Shaw argues
    that this limitation was taught by Ligon. The Board
    rejected Shaw’s argument, finding that adding a second
    package as taught in Ligon to either side of the frame in
    Munnekehoff would cause tangling and result in an
    inoperable assembly, absent complete redesign. In mak-
    ing this finding, the Board considered the explanation by
    Shaw’s expert, Dr. Youjiang Wang, that “tube Q” could be
    used to prevent tangling. The Board wrote that “[t]he use
    of tube Q . . . is not disclosed in the cited references” and
    that Dr. Wang did not “provide any basis (in Ligon or
    otherwise) for adding the additional tube to the
    Munnekehoff assembly in the manner proposed.” Final
    Decision, 
    2014 WL 3725531
    , at *11.
    Shaw argues that the Board found that Munnekehoff
    did not disclose the “tube Q” relied on by Dr. Wang. Such
    a finding would be undisputedly erroneous, as ACS ad-
    mits that Munnekehoff has a structure corresponding to
    Dr. Wang’s “tube Q.” ACS argues, however, that the
    Board did not make such a finding. ACS argues that
    instead, the Board found that Munnekehoff did not dis-
    close “tube Q” the same way that Dr. Wang illustrated,
    i.e., as a structure that an artisan would have used to
    prevent tangling.
    SHAW INDUSTRIES GROUP   v. AUTOMATED CREEL SYSTEMS         13
    The language of the Board’s decision as to “tube Q” is
    ambiguous at best. If the Board found that “tube Q” was
    not disclosed in Munnekehoff, it was an undisputed error.
    The parties dispute what impact the error would have on
    the Board’s ultimate conclusion, but given the factual
    nature of the teachings of a reference, we leave to the
    Board such fact findings in the first instance. Thus, we
    vacate-in-part and remand.
    II ACS’S CROSS-APPEAL
    A
    ACS challenges the Board’s decision that the second
    IPR was not barred pursuant to 
    35 U.S.C. § 315
    (b). This
    section provides:
    An inter partes review may not be instituted if the
    petition requesting the proceeding is filed more
    than 1 year after the date on which the petitioner,
    real party in interest, or privy of the petitioner is
    served with a complaint alleging infringement of
    the patent.
    It argues that we have jurisdiction to review the decision
    because it is not challenging the Board’s institution
    decision but rather the Board’s interpretation of § 315(b).
    Our court recently faced a similar challenge in Acha-
    tes Reference Publishing, Inc. v. Apple Inc., 
    803 F.3d 652
    (Fed. Cir. 2015). We held that we lack jurisdiction to
    review “the Board’s determination to initiate IPR proceed-
    ings based on its assessment of the time-bar of § 315(b),
    even if such assessment is reconsidered during the merits
    phase of proceedings and restated as part of the Board’s
    final written decision.” Id. at 658 (citing 
    35 U.S.C. § 314
    (d)). We noted that a “narrow exception to the bar
    on judicial review exists for claims that the agency ex-
    ceeded the scope of its delegated authority or violated a
    clear statutory mandate.” 
    Id.
     (quoting Hanauer v. Reich,
    
    82 F.3d 1304
    , 1307 (4th Cir. 1996)). Section 315(b) keys
    14     SHAW INDUSTRIES GROUP    v. AUTOMATED CREEL SYSTEMS
    the time bar at issue to the service of the patent in-
    fringement complaint. The Board decided that ACS’s
    voluntary dismissal of the suit without prejudice “nulli-
    fie[d] the effect of the service of the complaint.” Second
    Institution Decision, 
    2013 WL 8595536
    , at *6. The Board
    reasoned that we “consistently ha[ve] interpreted the
    effect of dismissals without prejudice as leaving the
    parties as though the action had never been brought.”
    
    Id.
     (citing, e.g., Graves v. Principi, 
    294 F.3d 1350
    , 1356
    (Fed. Cir. 2002); Bonneville Assocs., Ltd. v. Barram, 
    165 F.3d 1360
    , 1364 (Fed. Cir. 1999)). Thus, the Board con-
    cluded that Shaw’s petition was not time barred.
    It is true we have held in other cases that dismissals
    without prejudice leave the parties as though the action
    had never been brought. While these cases did not ad-
    dress § 315(b) or whether service of a complaint can be
    nullified, based on Achates, we lack jurisdiction to review
    this aspect of the Board’s decision. We note that the
    Supreme Court’s decision to grant certiorari as to the
    second question in Cuozzo Speed Technologies, LLC v.
    Lee, 
    136 S. Ct. 890
     (2016) may affect this court’s holding
    regarding the reviewability of the decision to institute in
    Achates. As of now, we are constrained by our earlier
    precedent.
    B
    As to the merits, the Board determined that Shaw
    showed by a preponderance of the evidence that claim 4
    would have been obvious over Munnekehoff or Barmag in
    view of Bluhm. The Board’s factual findings are support-
    ed by substantial evidence and we see no error in its
    conclusion of obviousness. Thus, we affirm the Board’s
    decision with regard to claim 4.
    CONCLUSION
    We affirm-in-part, vacate-in-part and remand the
    Board’s decision. We deny Shaw’s petition for writ.
    SHAW INDUSTRIES GROUP   v. AUTOMATED CREEL SYSTEMS   15
    AFFIRMED-IN-PART, VACATED-IN-PART, AND
    REMANDED
    COSTS
    No costs.
    United States Court of Appeals
    for the Federal Circuit
    ______________________
    SHAW INDUSTRIES GROUP, INC.,
    Appellant
    v.
    AUTOMATED CREEL SYSTEMS, INC.,
    Cross-Appellant
    ______________________
    2015-1116, 2015-1119
    ______________________
    Appeals from the United States Patent and Trade-
    mark Office, Patent Trial and Appeal Board in Nos.
    IPR2013-00132, IPR2013-00584.
    ______________________
    REYNA, Circuit Judge, concurring specially.
    I fully join the panel opinion. I write separately on
    the Patent Trial and Appeal Board’s (“Board”) application
    of the so-called “Redundancy Doctrine.” The Board’s
    improper, conclusory statements declining to implement
    inter partes review (“IPR”) of grounds it found to be “re-
    dundant” leave me deeply concerned about the broader
    impact that the Redundancy Doctrine may have on the
    integrity of the patent system. In particular, other tribu-
    nals will be tasked with deciding whether estoppel applies
    based on cryptic statements the U.S. Patent and Trade-
    mark Office (“PTO”) makes under the guise of its pre-
    sumed “complete discretion” over IPR institution.
    2      SHAW INDUSTRIES GROUP    v. AUTOMATED CREEL SYSTEMS
    I
    In both petitions, the Board implemented one ground
    for each claim-at-issue and declined to implement all
    additional grounds as “redundant.” In the first petition
    the Board stated, in full: “With respect to claims 1–3 and
    5–21, the additional asserted grounds are denied as
    redundant in light of our determination that there is a
    reasonable likelihood that the challenged claims are
    unpatentable based on the grounds of unpatentability on
    which we institute an inter partes review. See 
    37 C.F.R. § 42.108
    .” Shaw Indus. Grp., Inc. v. Automated Creel
    Sys., Inc., IPR2013-00132, 
    2013 WL 8563792
    , at *20
    (PTAB July 25, 2013). As is apparent, the Board’s only
    basis for not instituting the additional grounds was that
    those grounds are “redundant” of the instituted grounds,
    without any reasoned basis why or how the denied
    grounds are redundant. In the second petition, the Board
    discussed Shaw’s arguments, made no findings about the
    grounds and concluded, “we exercise our discretion under
    
    37 C.F.R. § 42.108
     to institute an inter partes review
    based solely on the asserted grounds directed to combina-
    tions with Bluhm and deny the remaining grounds as
    redundant.” Shaw Indus. Grp., Inc. v. Automated Creel
    Sys., Inc., IPR2013-00584, 
    2013 WL 8595536
    , at *13
    (PTAB Dec. 31, 2013). Shaw Industries argues these
    statements apply the “Redundancy Doctrine” through
    which the Board arbitrarily and capriciously denies some
    grounds but not others. Appellant’s Opening Br. 62–75.
    The PTO emphatically denies that any such Redun-
    dancy Doctrine exists. E.g., PTO Br. 17 (“As an initial
    matter, there is no ‘redundancy doctrine,’”); Oral Argu-
    ment 40:25 (“There is no Redundancy Doctrine.”) (herein-
    after “Hr’g”), available at http://oralarguments.cafc.
    uscourts.gov/default.aspx?fl=2015-1116.mp3. Because no
    explanation other than the redundancy finding was
    provided by the Board, the lack of a doctrine on redun-
    dancy deprives the Board’s decisions of any basis. But the
    SHAW INDUSTRIES GROUP   v. AUTOMATED CREEL SYSTEMS       3
    PTO has a ready answer: it need not provide any basis for
    its institution decisions. Hr’g at 46:13 (“We do not even
    have to state in our institution decisions why we’re choos-
    ing not to go forward.”). The PTO argues this is so be-
    cause “the Director [of the PTO] has complete discretion
    to deny institution.” PTO Br. 20 (capitalization altered).
    II
    The PTO’s claim to unchecked discretionary authority
    is unprecedented. It bases this claim on the statute that
    makes institution or denial of inter partes review “final
    and nonappealable.” See 
    35 U.S.C. § 314
    (a), (d). Regard-
    less of appealability, administrative discretion is not and
    never can be “complete” because it is always bounded by
    the requirement that an agency act within the law and
    not violate constitutional safeguards. See 
    35 U.S.C. § 2
    (b)(2) (PTO “may establish regulations, not incon-
    sistent with law”). There is good reason for this. “Expert
    discretion is the lifeblood of the administrative process,
    but unless we make the requirements for administrative
    action strict and demanding, expertise, the strength of
    modern government, can become a monster which rules
    with no practical limits on its discretion.” Burlington
    Truck Lines, Inc. v. United States, 
    371 U.S. 156
    , 167
    (1962) (internal quotation marks omitted).
    Indeed, regardless of whether the Board’s institution
    decisions can be appealed, the Board cannot create a
    black box decisionmaking process. Conclusory statements
    are antithetical to the requirements of the Administrative
    Procedures Act (“APA”), which the PTO and its Board are
    subject to. 
    35 U.S.C. § 2
    (b)(2)(B); see also Dickinson v.
    Zurko, 
    527 U.S. 150
    , 154 (1999). The APA requires
    “reasoned decisionmaking” for both agency rulemaking
    and adjudications because it “promotes sound results, and
    unreasoned decisionmaking the opposite.”        Allentown
    Mack Sales & Serv., Inc. v. N.L.R.B., 
    522 U.S. 359
    , 374–
    75 (1998) (citation omitted). The APA requires that Board
    4       SHAW INDUSTRIES GROUP   v. AUTOMATED CREEL SYSTEMS
    decisions evince both its authority to render the decision
    and a reasoned basis for rendering that decision. 
    Id. at 372
     (“Not only must an agency’s decreed result be within
    the scope of its lawful authority, but the process by which
    it reaches that result must be logical and rational.”). The
    problem here is not that the Board’s reasoning is illogical
    or irrational; the problem is that there is no reasoning at
    all.
    Both Board decisions only cite 
    37 C.F.R. § 42.108
     as
    its authority for denying institution of certain grounds,
    and the PTO maintains this position on appeal. PTO Br.
    19–32. The regulation allows for selective institution of
    certain grounds and not others. 
    37 C.F.R. § 42.108
    (a);
    Harmonic Inc. v. Avid Tech., Inc., No. 15-1072, 
    2016 WL 798192
    , at *7 (Fed. Cir. Mar. 1, 2016). The regulation,
    however, does not itself provide a reason to deny some
    grounds and institute others, it only provides the authori-
    ty to do so. This authority neither satisfies nor exempts
    the Board from its obligation to include “findings and
    conclusions, and the reasons or basis therefor, on all the
    material issues of fact, law, or discretion presented on the
    record.” 
    5 U.S.C. § 557
    (c) (emphasis added); Burlington
    Truck Lines, 
    371 U.S. at 167
    . The sole basis advanced by
    the Board is that the additional grounds are redundant.
    Despite repeatedly denying any Redundancy Doctrine
    exists, the PTO argues the decision is supported by rea-
    soning not articulated in the Board’s final written deci-
    sion. Before this Court, the PTO argues efficiency; that is,
    the Board may choose among the grounds asserted be-
    cause a particular ground may resolve the case and a
    multiplicity of grounds would increase the Board’s work-
    load and make it difficult to meet its statutory deadlines.
    PTO Br. 26–32; Hr’g at 39:35–46:20. 1 The Board’s insti-
    1   The PTO cites the considerations Congress in-
    structed the PTO to take into consideration in regulating
    SHAW INDUSTRIES GROUP   v. AUTOMATED CREEL SYSTEMS        5
    tution decisions, however, say nothing about efficiency so
    we, normally, would deem it improper for the PTO to
    make these arguments on appeal. Burlington Truck
    Lines, 
    371 U.S. at
    168–69 (“The courts may not accept
    appellate counsel’s post hoc rationalizations for agency
    action; Chenery requires that an agency’s discretionary
    order be upheld, if at all, on the same basis articulated in
    the order by the agency itself”). But the Redundancy
    Doctrine exists, as articulated repeatedly in the Board’s
    other decisions, and we assume that the word “redun-
    dant” here means that Doctrine was applied, even if no
    citation was provided. For the PTO to deny that a Redun-
    dancy Doctrine exists in light of its caselaw development
    strains credulity.
    In a prior Order issued by the Chief, Vice Chief, Lead,
    and six other Administrative Patent Judges from the
    Board, the Board devoted seventeen pages exclusively to
    discussing and applying two “types of redundancy.”
    Liberty Mut. Ins. Co. v. Progressive Cas. Ins. Co., CBM-
    2012-00003, 
    2012 WL 9494791
    , at *2 (Oct. 25, 2012). 2
    Both types of redundancy discussed were substantive
    redundancies between grounds with “essentially the same
    teaching to meet the same claim limitation” or exactly the
    same references combined in different ways. 
    Id.
     Shaw
    Industries directs us to numerous other Board decisions
    IPRs as the statutory basis for applying 
    37 C.F.R. § 42.108
    (a) in this fashion, namely that it “consider . . .
    the efficient administration of the Office, and the ability
    of the Office to timely complete proceedings instituted
    under this chapter.” 
    35 U.S.C. § 316
    (b).
    2   Notably, this Order is listed among the Board’s
    “Representative Orders, Decisions and Notices” at
    http://www.uspto.gov/patents-application-
    process/appealing-patent-decisions/decisions-and-
    opinions/representative-orders.
    6       SHAW INDUSTRIES GROUP   v. AUTOMATED CREEL SYSTEMS
    discussing, relying on and further developing the Redun-
    dancy Doctrine born in Liberty Mutual. See Appellant’s
    Opening Br. 59–62. 3 In some of these decisions the Board
    appears to find redundancy not on any substantive basis,
    but rather on the basis that it need only hear one ground
    for each claim and that hearing multiple grounds might
    require “redundant” effort on its part. See, e.g., EMC
    Corp. v. PersonalWeb Techs. LLC, IPR2013-00087, 
    2013 WL 6514050
    , at *2 (June 5, 2013) (“the references are
    redundant insofar as each ground of unpatentability is
    sufficient to invalidate the claims.”) (quotation omitted).
    The Board’s invocation of the Redundancy Doctrine
    represents, at least in some instances, a substantive
    decision. Even here, despite the PTO insistence that
    labeling of grounds as “redundant” doesn’t reflect a sub-
    stantive determination, the PTO’s own statements and
    arguments seem to indicate the contrary conclusion. The
    PTO insists that the Board did consider the rejected
    grounds in making its institution decision and cannot say
    efficiency was the sole basis that the redundant grounds
    were not instituted. E.g., Hr’g at 50:48 (“I wouldn’t say
    that it’s not that they’re considered, the Board is going to
    do their job . . . .”); Hr’g at 51:20 (“[The Board] may be
    choosing not to go forward on the Payne ground for rea-
    sons other than likelihood of success.”). The statutory
    scheme’s estoppel provisions make such ambiguity about
    whether substantive determinations were made problem-
    atic.
    The effects of estoppel are profound. Under 
    35 U.S.C. § 315
    (e)(2), “[t]he petitioner in an inter partes review of a
    3   Particularly troubling are instances where, as
    here, the Board found Section 102 anticipation grounds
    redundant of Section 103 obviousness grounds without
    explanation. See, e.g., Oracle Corp. v. Clouding IP,
    IPR2013-00088, 
    2013 WL 8595567
    , at *7 (May 14, 2013).
    SHAW INDUSTRIES GROUP   v. AUTOMATED CREEL SYSTEMS          7
    claim in a patent under this chapter that results in a final
    written decision . . . may not assert either in a civil action
    . . . or in a proceeding before the International Trade
    Commission . . . that the claim is invalid on any ground
    that the petitioner raised or reasonably could have raised
    during that inter partes review.” (emphasis added).
    Indeed, the potential for estoppel is one of the important
    considerations for defendants in deciding whether or not
    to file an IPR petition. 4
    The PTO asserts that estoppel will not attach to re-
    dundant grounds because grounds that are not instituted
    are not those the petitioner “raised or reasonably could
    have raised.” See, e.g., PTO Br. 32 n.20, 37–39; Hr’g at
    32:38–44. (“We would not find estoppel on that Payne-
    based ground because we did not institute on it.”).
    Whether estoppel applies, however, is not for the Board or
    the PTO to decide. Nor is it for us to decide in the first
    instance, despite the invitation from Shaw Industries,
    because the issue is not properly before us. See Appel-
    lant’s Opening Br. 75–76. Instead, whether the “redun-
    dant” grounds are subject to estoppel must be determined
    in the first instance by the district court or the U.S.
    International Trade Commission. 
    35 U.S.C. § 315
    (e)(2).
    These tribunals should not have to parse cryptic state-
    ments or search out uncited doctrines to make this deter-
    mination.
    4   E.g., Saurabh Vishnubhakat, Arti K. Rai, Jay P.
    Kesan, Strategic Decision Making in Dual PTAB and
    District Court Proceedings, BERKELEY TECH, L.J. (forth-
    coming 2016) (manuscript             15), available at
    http://papers.ssrn.com/sol3/papers.cfm?abstract_id=27310
    02.
    8      SHAW INDUSTRIES GROUP        v. AUTOMATED CREEL SYSTEMS
    III
    The Board should, at a minimum, provide a reasoned
    basis how or why grounds are “redundant.” The PTO
    claims the Board’s statement here refers to efficiency
    concerns, but in failing to clearly articulate the basis of its
    decision, the Board’s final written decision fails to satisfy
    its obligations under the APA. Regardless of the reviewa-
    bility of that decision, the lack of a reasoned basis de-
    prives future tribunals of the necessary basis to
    determine whether estoppel should apply. The PTO has
    lost sight of its obligation to “consider the effect of” its
    implementation of the IPR process on “the integrity the
    patent system” as a whole. 
    35 U.S.C. § 316
    (b).