Acceleration Bay, LLC v. Activision Blizzard Inc. , 908 F.3d 765 ( 2018 )


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  •   United States Court of Appeals
    for the Federal Circuit
    ______________________
    ACCELERATION BAY, LLC,
    Appellant
    v.
    ACTIVISION BLIZZARD INC., ELECTRONIC ARTS
    INC., TAKE-TWO INTERACTIVE SOFTWARE, INC.,
    2K SPORTS, INC., ROCKSTAR GAMES, INC.,
    Cross-Appellants
    BUNGIE, INC.,
    Appellee
    ______________________
    2017-2084, 2017-2085, 2017-2095, 2017-2096, 2017-2097,
    2017-2098, 2017-2099, 2017-2117, 2017-2118
    ______________________
    Appeals from the United States Patent and Trade-
    mark Office, Patent Trial and Appeal Board in Nos.
    IPR2015-01951,     IPR2015-01953,     IPR2015-01964,
    IPR2015-01970,     IPR2015-01972,     IPR2015-01996,
    IPR2016-00933,     IPR2016-00934,     IPR2016-00935,
    IPR2016-00936,    IPR2016-00963,      IPR2016-00964.
    ______________________
    Decided: November 6, 2018
    ______________________
    PAUL J. ANDRE, Kramer Levin Naftalis & Frankel
    LLP, Menlo Park, CA, argued for appellant. Also repre-
    sented by JAMES R. HANNAH.
    2           ACCELERATION BAY, LLC v. ACTIVISION BLIZZARD INC.
    JAMES LAWRENCE DAVIS, JR., Ropes & Gray LLP, East
    Palo Alto, CA, argued for cross-appellants. Also repre-
    sented by ANDREW N. THOMASES; DOUGLAS HALLWARD-
    DRIEMEIER, Washington, DC.
    MICHAEL T. ROSATO, Wilson, Sonsini, Goodrich &
    Rosati, PC, Seattle, WA, for appellee. Also represented by
    JOSE CARLOS VILLARREAL, Austin, TX; RICHARD TORCZON,
    Washington, DC.
    ______________________
    Before PROST, Chief Judge, MOORE and REYNA, Circuit
    Judges.
    MOORE, Circuit Judge.
    Patent owner Acceleration Bay, LLC (“Acceleration”)
    appeals the final written decisions of the Patent Trial and
    Appeal Board holding unpatentable claims 1–9 of U.S.
    Patent No. 6,829,634, claims 1–11 and 16–19 of U.S.
    Patent No. 6,701,344, and claims 1–11 and 16–17 of U.S.
    Patent No. 6,714,966. Activision Blizzard, Inc., Electronic
    Arts Inc., Take-Two Interactive Software, Inc., 2k Sports,
    Inc., and Rockstar Games, Inc. (collectively, “Blizzard”)
    cross-appeal portions of the Board’s decisions holding
    patentable claims 10–18 of the ’634 patent, as well as
    substitute claims 19 of the ’966 patent, 21 of the ’344
    patent, and 25 of the ’634 patent. Blizzard also cross-
    appeals the Board’s decisions holding that the Lin article
    is not a printed publication under 35 U.S.C. § 102(a). For
    the following reasons, we affirm.
    ACCELERATION BAY, LLC v. ACTIVISION BLIZZARD INC.         3
    BACKGROUND
    The patents at issue are directed to a broadcast tech-
    nique in which a broadcast channel overlays a point-to-
    point communications network. See, e.g., ’966 patent at
    4:3–5. 1 The communications network consists of a graph
    of point-to-point connections between host computers or
    “nodes,” through which the broadcast channel is imple-
    mented, represented in Figure 1. 
    Id. at 4:23–26,
    48–49.
    Figure 1 illustrates a broadcast channel that is “4-regular,
    4-connected.” 
    Id. at 4:48–49.
    It is “4-regular” because
    1    The specifications are similar but contain sections
    unique to each patent, such as: ’966 patent at 16:24–
    17:26 (discussing “an information delivery service”); ’344
    patent at 16:29–17:11 (discussing “a distributed game
    environment”); ’634 patent at 2:45–67 (providing a “sum-
    mary of the invention”).
    4         ACCELERATION BAY, LLC v. ACTIVISION BLIZZARD INC.
    each node is connected to exactly four other nodes, re-
    ferred to as “neighbors.” 
    Id. at 4:26–30,
    38–42, 49–53. It
    is “4-connected” because it would take the failure of four
    nodes to divide the graph into two separate sub-graphs.
    
    Id. at 4:42–47.
    One node sends a message to each of its
    three neighbors, and they send the message to their
    neighbors, thus broadcasting the message to each node.
    
    Id. at 4:30–38.
        Blizzard filed six inter partes review (“IPR”) peti-
    tions—two for each of the ’344, ’966, and ’634 patents—
    based principally on two different prior art references: one
    set of IPRs challenged claims based on the Shoubridge
    article 2 alone or combined with a prior art book Direct-
    Play 3 (“Shoubridge IPRs”), and another set of IPRs chal-
    lenged claims based on the Lin article 4 alone or combined
    with DirectPlay (“Lin IPRs”). The Board instituted IPR
    on each petition, on many of the grounds and claims
    raised, 5 and rendered six final decisions.         In the
    2   Peter J. Shoubridge & Arek Dadej, Hybrid Rout-
    ing in Dynamic Networks, 3 IEEE INT’L CONF. ON COMMS.
    CONF. REC. 1381–86 (Montreal, 1997).
    3   Bradley Bargen & Peter Donnelly, Inside Di-
    rectX®: In-Depth Techniques for Developing High-
    Performance Multimedia Applications (Microsoft Press,
    1998).
    4   Meng-Jang Lin, et al., Gossip versus Deterministic
    Flooding: Low Message Overhead and High Reliability for
    Broadcasting on Small Networks, Technical Report No.
    CS1999-0637 (Univ. of Cal. San Diego, 1999).
    5   The Board did not institute IPR on all challenged
    claims and grounds. In SAS Institute, Inc. v. Iancu, 
    138 S. Ct. 1348
    , 1353 (2018), the Court held that 35 U.S.C.
    § 318(a) prohibits the Board from instituting IPR on fewer
    than all challenged claims. No party, however, has asked
    us to reopen or remand any portion of a non-instituted
    ACCELERATION BAY, LLC v. ACTIVISION BLIZZARD INC.       5
    Shoubridge IPRs, the Board determined the following
    claims are unpatentable: ’966 patent claims 1–11 and 16–
    17; ’344 patent claims 1–11 and 16–19; and ’634 patent
    claims 1–9. In the Lin IPRs, the Board concluded that
    Lin is not a printed publication under 35 U.S.C. § 102(a)
    and thus determined Blizzard failed to show the chal-
    lenged claims are unpatentable over Lin.
    Acceleration appeals portions of the Board’s decisions
    in the Shoubridge IPRs, and Blizzard cross-appeals por-
    tions of the Board’s decisions in the Shoubridge IPRs and
    the Lin IPRs. We have jurisdiction under 28 U.S.C.
    § 1295(a)(4)(A).
    DISCUSSION
    We review the Board’s legal determinations de novo
    and its fact findings for substantial evidence. PPC
    Broadband, Inc. v. Corning Optical Commc’ns RF, LLC,
    
    815 F.3d 747
    , 751 (Fed. Cir. 2016). In IPR, the Board
    gives claims their broadest reasonable interpretation
    consistent with the specification. 
    Id. We review
    claim
    construction de novo except for subsidiary fact findings,
    which we review for substantial evidence. 
    Id. I. Acceleration
    challenges three aspects of the Board’s
    decisions. Claim 1 of the ’966 patent is representative of
    the claim construction disputes in Acceleration’s appeal
    (emphases added):
    1. A computer network for providing an infor-
    mation delivery service for a plurality of par-
    ticipants, each participant having connections to
    petition, and we see no reason to independently do so.
    See, e.g., PGS Geophysical AS v. Iancu, 
    891 F.3d 1354
    ,
    1359–62 (Fed. Cir. 2018); Jazz Pharm., Inc. v. Amneal
    Pharm., LLC, 
    895 F.3d 1347
    , 1354–55 (Fed. Cir. 2018).
    6         ACCELERATION BAY, LLC v. ACTIVISION BLIZZARD INC.
    at least three neighbor participants, wherein an
    originating participant sends data to the other
    participants by sending the data through each of
    its connections to its neighbor participants and
    wherein each participant sends data that it re-
    ceives from a neighbor participant to its other
    neighbor participants, further wherein the net-
    work is m-regular, where m is the exact number of
    neighbor participants of each participant and fur-
    ther wherein the number of participants is at
    least two greater than m thus resulting in a non-
    complete graph.
    Acceleration argues the Board erred by construing the
    term “participant” according to its plain meaning. It
    argues the terms “game environment” and “information
    delivery service,” appearing in the ’344 and ’966 patents,
    respectively, should have been given patentable weight.
    Finally, it argues the Board failed to identify a broadcast
    channel in Shoubridge in its anticipation and obviousness
    analyses. We address each argument in turn.
    A.
    Acceleration argues the Board erred by construing the
    term “participant” according to its plain meaning. It
    argues the proper construction of “participant” is an
    “application program that interacts with a logical broad-
    cast channel which overlays an underlying network.”
    Appellant’s Br. 26–27.
    We see no legal error in the Board’s refusal to import
    detailed structural information into the term “partici-
    pant.” See, e.g., J.A. 42–44. Neither the claims nor the
    specifications define or expressly describe the term in this
    manner, a fact Acceleration conceded at oral argument.
    Oral Arg. at 4:20–5:10. The specifications, for example,
    describe “participant” without reference to an application
    program. See, e.g., ’634 and ’966 patents at Abstract; ’634
    ACCELERATION BAY, LLC v. ACTIVISION BLIZZARD INC.         7
    patent at 2:45–67. We conclude, therefore, that the Board
    properly construed “participant.”
    B.
    Acceleration argues the claim terms “game environ-
    ment” and “information delivery service” are limitations
    despite appearing in the preambles because they provide
    structure for the remainder of the claims. Appellant’s Br.
    35–38 (citing, e.g., Rowe v. Dror, 
    112 F.3d 473
    , 478 (Fed.
    Cir. 1997); Vizio, Inc. v. Int’l Trade Comm’n, 
    605 F.3d 1330
    , 1341 (Fed. Cir. 2010)); Appellant’s Reply Br. 26.
    Acceleration alternatively argues that these terms appear
    in the body of the claims because there is no transition
    phrase denoting a preamble. See, e.g., Appellant’s Br. 38;
    Oral Arg. at 7:22–7:36.
    “A claim typically contains three parts: the preamble,
    the transition, and the body.” 3 Chisum on Patents § 8.06
    (2018). Acceleration’s poor claim drafting will not be an
    excuse for it to infuse confusion into its claim scope. We
    conclude that “game environment” and “information
    delivery service” are part of the preamble of the claims.
    We see no beneficial purpose to be served by failing to
    include a transition word in a claim to clearly delineate
    the claim’s preamble from the body, and we caution
    patentees against doing so.
    Because the terms at issue appear in preambles, we
    must determine whether the terms are limitations. A
    preamble limits the invention if it recites essential struc-
    ture or steps, or is “necessary to give life, meaning, and
    vitality” to the claim. Catalina Mktg. Int’l, Inc. v.
    Coolsavings.com, Inc., 
    289 F.3d 801
    , 808 (Fed. Cir. 2002)
    (quoting Pitney Bowes, Inc. v. Hewlett-Packard Co., 
    182 F.3d 1298
    , 1305 (Fed. Cir. 1999)). “[A] preamble is not
    limiting ‘where a patentee defines a structurally complete
    invention in the claim body and uses the preamble only to
    state a purpose or intended use for the invention.’” 
    Id. (citing Rowe,
    112 F.3d at 478).
    8         ACCELERATION BAY, LLC v. ACTIVISION BLIZZARD INC.
    We agree with the Board that the claim terms “game
    environment” and “information delivery service” are non-
    limiting because they merely describe intended uses for
    what is otherwise a structurally complete invention.
    They do not impart any structure into or serve as ante-
    cedents for the claims at issue. Instead, they simply
    provide an intended use for what is otherwise a claim for
    a network.
    C.
    Finally, Acceleration argues the Board determined
    that the canceled claims of the ’344 and ’966 patents
    describe a broadcast channel and acknowledged that the
    specifications explain the “broadcast channel overlays a
    point-to-point communications network.”        It argues,
    however, that the Board failed to determine whether
    Shoubridge discloses such a broadcast channel.
    Acceleration again attempts to import structural limi-
    tations into claims lacking those limitations. The Board’s
    statement that the claims “recite[] a structurally complete
    invention (i.e., ‘a broadcast channel’)” did not import a
    broadcast channel overlaying a point-to-point network
    into the claims. See J.A. 41–42; J.A. 168. While the
    specifications discuss a broadcast channel overlaying a
    network, the claims at issue are not so limited. The
    specifications do not contain the sort of precise and clear
    language that would warrant reading a limitation to a
    broadcast channel overlaying a point-to-point communica-
    tions network into the claims at issue. Appellant’s Br. 41
    (citing ’966 patent at 4:3–5 (noting such an arrangement
    “is provided”); ’634 patent at 4:29–31 (same); ’344 patent
    at 4:3–5 (same)). The language in the specifications falls
    far short of the language we have found sufficient to limit
    claims to configurations described in the specification.
    See, e.g., Blackbird Tech LLC v. ELB Elecs., Inc., 
    895 F.3d 1374
    , 1377 (Fed. Cir. 2018) (collecting cases, including
    those found to contain limiting language in the specifica-
    ACCELERATION BAY, LLC v. ACTIVISION BLIZZARD INC.          9
    tion such as “the present invention” and “essential ele-
    ment among all embodiments or connotations of the
    invention”). The specifications further explain “the inven-
    tion is not limited except by the claims.” E.g., ’344 patent
    at 29:23–24. Because the claims at issue do not contain
    the broadcast channel limitation argued for by Accelera-
    tion, the Board did not err by failing to identify such a
    broadcast channel in Shoubridge. We have considered
    Acceleration’s remaining arguments and find them un-
    persuasive. Accordingly, we affirm the Board’s determi-
    nations with regard to issues raised in Acceleration’s
    appeal.
    II.
    Claim 10 of the ’634 patent, and substitute claim 19 of
    the ’966 patent, J.A. 81, are representative of the issues in
    Blizzard’s cross-appeal (emphases added):
    10. A non-routing table based broadcast channel for
    participants, comprising:
    a communications network that provides peer-to-
    peer communications between the participants
    connected to the broadcast channel; and
    for each participant connected to the broadcast
    channel, an indication of four neighbor par-
    ticipants of that participant; and
    a broadcast component that receives data from a
    neighbor participant using the communications
    network and that sends the received data to its
    other neighbor participants to effect the broad-
    casting of the data to each participant of the to
    broadcast channel, wherein the network is m-
    regular and m-connected, where m is the number
    of neighbor participants of each participant, and
    further wherein the number of participants is at
    least two greater than m thus resulting in a non-
    complete graph.
    10         ACCELERATION BAY, LLC v. ACTIVISION BLIZZARD INC.
    19. (Proposed Substitute for Claim 7) A computer
    network for providing an information delivery service for
    a plurality of participants, each participant having con-
    nections to at least three neighbor participants,
    wherein an originating participant sends data to
    the other participants by sending the data
    through each of its connections to its neighbor
    participants and wherein each participant sends
    data that it receives from a neighbor participant
    to its other neighbor participants,
    further wherein the network is m-regular, where
    m is the exact number of neighbor participants of
    each participant,
    further wherein the number of participants is at
    least two greater than m thus resulting in a non-
    complete graph,
    further wherein the connections are peer-to-peer
    connections,
    further wherein the network is formed through a
    broadcast channel that overlays an underlying
    network,
    further wherein the information delivery service
    is provided by at least one information delivery
    service application program executing on each
    computer of the computer network that interacts
    with the broadcast channel,
    and further wherein participants can join and
    leave the network using the broadcast chan-
    nel.
    Blizzard cross-appeals three issues. First, it argues
    the Board erroneously concluded that Lin is not a printed
    publication under § 102(a). Second, it argues the Board
    erroneously determined ’634 patent claims 10–18 were
    not anticipated or rendered obvious by Shoubridge.
    ACCELERATION BAY, LLC v. ACTIVISION BLIZZARD INC.         11
    Third, it argues the Board erred in determining that
    various amended claims were patentable over the prior
    art. We consider each in turn.
    A.
    Whether a reference qualifies as a printed publication
    under § 102 is a legal conclusion based on underlying fact
    findings. 6 Jazz Pharm., Inc. v. Amneal Pharm., LLC, 
    895 F.3d 1347
    , 1356 (Fed. Cir. 2018); accord Cooper Cameron
    Corp. v. Kvaerner Oilfield Prod., Inc., 
    291 F.3d 1317
    , 1321
    (Fed. Cir. 2002). One such fact question is public accessi-
    bility, which we review for substantial evidence. Jazz
    
    Pharm., 895 F.3d at 1356
    . “Because there are many ways
    in which a reference may be disseminated to the interest-
    ed public, ‘public accessibility’ has been called the touch-
    stone in determining whether a reference constitutes a
    ‘printed publication’ . . . .” 
    Id. (quoting In
    re Hall, 
    781 F.2d 897
    , 898–99 (Fed. Cir. 1986)). A reference is consid-
    ered publicly accessible if it was “disseminated or other-
    wise made available to the extent that persons interested
    and ordinarily skilled in the subject matter or art, exercis-
    ing reasonable diligence, can locate it.” 
    Id. at 1355–56
    (citing In re Wyer, 
    665 F.2d 221
    , 226 (CCPA 1981)). As
    petitioner, Blizzard had the burden to prove Lin is a
    printed publication. See 
    id. at 1356.
        The Board found that Lin was not publicly accessible
    before the critical date. See J.A. 10–22; J.A. 114–127; J.A.
    141–153. Based on the testimony of Glenn Little, a
    Systems Administrator at the Computer Science and
    Engineering (“CSE”) department of the University of
    California, San Diego (“UCSD”), the Board found that Lin
    had been uploaded to the CSE Technical Reports Li-
    6  Because the applications for each of the patents at
    issue were filed before March 16, 2013, the pre-Leahy-
    Smith America Invents Act version of § 102 applies.
    12        ACCELERATION BAY, LLC v. ACTIVISION BLIZZARD INC.
    brary’s website as of November 23, 1999, which is not
    challenged on appeal. See, e.g., J.A. 11–13. As the Board
    explained, according to Mr. Little, “the CSE department
    regularly maintains electronic technical reports and
    records concerning those reports, and a staff member
    assigns a unique identifier to each report based on the
    year it was uploaded and the relative order it was upload-
    ed in comparison to other papers.” J.A. 11.
    The Board then correctly noted that “public accessibil-
    ity” requires more than technical accessibility. J.A. 13.
    Because there was no evidence that Lin was disseminated
    to the public, the Board focused on whether an interested
    skilled artisan, using reasonable diligence, would have
    found Lin on the CSE Technical Reports Library website.
    J.A. 13–14 (citing Voter Verified, Inc. v. Premier Election
    Sols., Inc., 
    698 F.3d 1374
    , 1380–81 (Fed. Cir. 2012)). The
    Board found that despite some indexing and search
    functionality on the website, Lin was not publicly accessi-
    ble. See J.A. 15–19. It found the website allowed a user
    to view a list of technical reports indexed only by author
    or year and that there was no evidence as to how many
    reports were in the Library’s database in 1999. See J.A.
    16–17, 22. The Board determined that at best, Blizzard’s
    evidence “suggests that an artisan might have located Lin
    by skimming through potentially hundreds of titles in the
    same year, with most containing unrelated subject mat-
    ter, or by viewing all titles in the database listed by
    author, when the authors were not particularly well
    known.” J.A. 17. The Board also found the website’s
    advanced search form to be deficient. It found that while
    the advanced search form appeared to allow a user to
    search keywords for author, title, and abstract fields,
    evidence demonstrated that functionality was not reliable.
    J.A. 18–19, 22. In sum, the Board determined that Bliz-
    zard “has not shown sufficiently that the UCSD CSE
    Technical Reports Library was searchable or indexed in a
    meaningful way so that a person of ordinary skill in the
    ACCELERATION BAY, LLC v. ACTIVISION BLIZZARD INC.         13
    art would have located Lin.” J.A. 22. The Board, there-
    fore, concluded Lin is not a printed publication under
    § 102(a). J.A. 22.
    The Board did not err in concluding Lin is not a print-
    ed publication. Substantial evidence supports its findings
    that Lin was not publicly accessible, including that Lin
    was not indexed in a meaningful way and that the web-
    site’s advanced search form was deficient. Mr. Little
    testified he does not know how the search works or how
    keywords are generated, that he never searched for Lin
    using the advanced search form, and that it was not the
    CSE department’s practice to verify the advanced search
    capability for title and abstract when a new article was
    uploaded. See J.A. 18; J.A. 7034–35. Mr. Little also
    admitted it was possible the search function did not work.
    J.A. 7035–36. Acceleration presented evidence that a
    recent advanced search for keywords in the title and
    abstract of Lin failed to produce any results. J.A. 7035–
    36; J.A. 7991–94. Blizzard argues these results are
    unauthenticated hearsay and are based on searches
    conducted years after the critical date, but Mr. Little
    testified that as to the website, “[i]t’s pretty much the
    same, actually, between [1999] and now. We’re running
    the same software.” J.A. 7031 at 19:15–20:23; see also
    J.A. 18–19. We will not disturb the Board’s weighing of
    the evidence. Substantial evidence supports the Board’s
    finding that there “is insufficient evidence of record to
    support a finding that a person of ordinary skill in the art
    in 1999 could have located Lin using the CSE Library
    website’s search function.” See J.A. 19.
    In light of these facts, this case is not analogous to In
    re Lister, 
    583 F.3d 1307
    (Fed. Cir. 2009), as Blizzard
    claims. In Lister, we explained that “[a] reasonably
    diligent researcher with access to a database that permits
    the searching of titles by keyword would be able to at-
    tempt several searches using a variety of keyword combi-
    nations,” and thus concluded that the manuscript at issue
    14         ACCELERATION BAY, LLC v. ACTIVISION BLIZZARD INC.
    was publicly accessible as of the date it was included in
    “databases that permitted keyword searching of 
    titles.” 583 F.3d at 1315
    –16. Unlike in Lister, here the record
    supports the Board’s finding that the CSE Library web-
    site’s advanced search function did not successfully per-
    mit keyword searching of titles, a key feature in Lister.
    See 
    id. The Board’s
    fact finding that, with available
    reports indexed only by author or year, Lin was not
    meaningfully indexed, is supported by substantial evi-
    dence.
    Blizzard argues we need not even consider the web-
    site’s search functionality because Lin was indexed by
    title for a given year, author name, and unique sequence
    number, which is sufficient for public accessibility under
    In re Hall, 
    781 F.2d 897
    (Fed. Cir. 1986). We do not
    agree.
    The test for public accessibility is not “has the refer-
    ence been indexed?” We have explained that where
    indexing is concerned, whether online or in tangible
    media, the “ultimate question is whether the reference
    was ‘available to the extent that persons interested and
    ordinarily skilled in the subject matter or art, exercising
    reasonable diligence, can locate it.’” Voter 
    Verified, 698 F.3d at 1380
    ; accord In re Klopfenstein, 
    380 F.3d 1345
    ,
    1348 (Fed. Cir. 2004) (“Even if the cases cited by the
    appellants relied on inquiries into distribution and index-
    ing to reach their holdings, they do not limit this court to
    finding something to be a ‘printed publication’ only when
    there is distribution and/or indexing. Indeed, the key
    inquiry is whether or not a reference has been made
    ‘publicly accessible.’”). Here, the Board found that alt-
    hough Lin was indexed by author and year, it was not
    meaningfully indexed such that an interested artisan
    exercising reasonable diligence would have found it,
    which is a proper consideration under our precedent. See,
    e.g., In re Cronyn, 
    890 F.2d 1158
    , 1161 (Fed. Cir. 1989)
    (“We conclude that in the present case, as in Bayer and
    ACCELERATION BAY, LLC v. ACTIVISION BLIZZARD INC.         15
    unlike Hall, the three student theses were not accessible
    to the public because they had not been either cataloged
    or indexed in a meaningful way. . . . Here, the only re-
    search aid was the student’s name, which, of course, bears
    no relationship to the subject of the student’s thesis.”). In
    light of the Board’s fact findings, which are supported by
    substantial evidence, we agree that Lin is not a printed
    publication under § 102.
    B.
    Blizzard argues the Board erroneously determined
    claims 10–18 of the ’634 patent are patentable over
    Shoubridge. Independent claim 10 contains the limita-
    tion, “for each participant connected to the broadcast
    channel, an indication of four neighbor participants of
    that participant.”     The Board construed “indication”
    according to its ordinary meaning as “something that
    serves to indicate,” J.A. 253–54, which is not disputed on
    appeal. Blizzard disputes the Board’s application of the
    term to Shoubridge. Specifically, it argues its expert, Dr.
    David Karger, explained “a participant must know the
    identities of its neighbors in order to send messages to
    them,” and the Board applied an unspecified narrower
    construction that requires something more than each
    participant “know[ing] the identities of its neighbors” in
    determining Shoubridge did not disclose or render obvious
    this limitation. Cross-Appellants’ Br. 58–60.
    We see no error in the Board’s construction or applica-
    tion of “indication.” The Board did not err in determining
    that “an ‘indication’ requires more than the existence of
    neighbors,” and substantial evidence supports its finding
    that Shoubridge does not disclose “something that serves
    to indicate” despite the fact that Shoubridge discloses
    nodes connected to each other. J.A. 254; J.A. 271–72.
    Blizzard also argues the Board abused its discretion
    by failing to consider paragraphs 193–205 of Dr. Karger’s
    reply declaration because it constituted new evidence for
    16          ACCELERATION BAY, LLC v. ACTIVISION BLIZZARD INC.
    its obviousness argument that could have been presented
    in the petition. See, e.g., Cross-Appellants’ Br. 60 (citing
    J.A. 40569–74 ¶¶ 193–205)). It argues the declaration
    directly responds to Acceleration’s construction of “indica-
    tion” and explains a skilled artisan’s understanding of the
    prior art regarding this limitation. It also argues it raised
    backup obviousness arguments for claims 1–18 over
    Shoubridge in its petition. We review the Board’s eviden-
    tiary rulings for abuse of discretion. Belden Inc. v. Berk-
    Tek LLC, 
    805 F.3d 1064
    , 1078 (Fed. Cir. 2015).
    The Board did not abuse its discretion in declining to
    consider the cited paragraphs in Dr. Karger’s reply decla-
    ration. See J.A. 271–72. The declaration raises a new
    obviousness argument for this limitation that could have
    been made in the petition. The Board correctly noted this
    argument was not made in the petition, which proposed
    that Shoubridge rendered obvious a number of other claim
    limitations. Blizzard, as petitioner, had an opportunity to
    present this argument in its petition, but chose not to.
    See SAS Inst., Inc. v. Iancu, 
    138 S. Ct. 1348
    , 1355 (2018)
    (noting “the petitioner is master of its complaint”); 
    id. at 1358
    (noting the statute “makes the petition the center-
    piece of the proceeding both before and after institution”).
    As we recently explained,
    [i]t is of the utmost importance that petitioners in
    the IPR proceedings adhere to the requirement
    that the initial petition identify “with particulari-
    ty” the “evidence that supports the grounds for the
    challenge to each claim.” 35 U.S.C. § 312(a)(3).
    “All arguments for the relief requested in a motion
    must be made in the motion. A reply may only re-
    spond to arguments raised in the corresponding
    opposition or patent owner response.” 37 C.F.R.
    § 42.23(b). Once the Board identifies new issues
    presented for the first time in reply, neither this
    court nor the Board must parse the reply brief to
    determine which, if any, parts of that brief are re-
    ACCELERATION BAY, LLC v. ACTIVISION BLIZZARD INC.        17
    sponsive and which are improper. As the Board
    noted, “it will not attempt to sort proper from im-
    proper portions of the reply.” Office Patent Trial
    Practice Guide, 77 Fed. Reg. 48,756, 48,767 (Aug.
    14, 2012).
    Intelligent Bio-Sys., Inc. v. Illumina Cambridge Ltd., 
    821 F.3d 1359
    , 1369 (Fed. Cir. 2016). We conclude that the
    Board did not abuse its discretion in not considering the
    cited paragraphs of the reply declaration in its analysis.
    C.
    Finally, Blizzard argues that certain substitute claims
    are unpatentable. The Board held substitute claims 19 of
    the ’966 patent, 21 of the ’344 patent, and 25 of the ’634
    patent patentable. These substitute claims contain the
    limitation “participants can join and leave the network
    using the broadcast channel.” Blizzard argues the Board
    inconsistently and erroneously construed the join-leave
    limitation. It argues the Board applied the correct con-
    struction when analyzing whether the motions to amend
    identified written description support in the original
    disclosure for the new limitation, but that it applied an
    unspecified, narrower construction when comparing the
    claims to the prior art.
    We see no error in the Board’s analysis of this limita-
    tion. Blizzard provided no construction below, or on
    appeal, for this claim limitation. The Board, therefore,
    properly focused on the ordinary meaning to determine
    the prior art did not disclose or render obvious joining the
    network “using the broadcast channel.” We see no error
    or inconsistent treatment of this claim limitation in the
    Board’s analyses concerning written description and
    invalidity. We have considered Blizzard’s remaining
    arguments and find them unpersuasive. Accordingly, we
    affirm the Board’s determinations with regard to issues
    raised in Blizzard’s cross-appeal.
    18         ACCELERATION BAY, LLC v. ACTIVISION BLIZZARD INC.
    CONCLUSION
    We conclude the Board properly construed “partici-
    pant” according to its plain meaning and gave no patent-
    able weight to the terms “game environment” and
    “information delivery service.” We also conclude substan-
    tial evidence supports the Board’s findings underlying its
    conclusion that Lin is not § 102 prior art, and that the
    Board did not err in determining certain claims and
    substitute claims are patentable over the prior art.
    Accordingly, we affirm.
    AFFIRMED
    COSTS
    No costs.