• Cisco Systems, Inc. v. Portsmouth Network Corp.No claims unpatentable
  PTAB · Aug 4, 2025 · IPR2024-00503 · APJ Charles J Boudreau · IPR · Final written decision

  Claims 1–18 were not shown unpatentable because the asserted obviousness combinations did not cure the failure to show the claimed request and routing steps.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner contends that a person of ordinary skill in the art in the field of the ’279 patent in January 2001 “would have had a working knowledge of the network communication technologies that are pertinent to the ’279 patent, including network flow allocation in a ring topology.” Pet. 12. More specifically, Petitioner argues, a person of ordinary skill in the art “would have had a master’s degree in computer science, computer engineering, or an equivalent, and two years of professional experience relating to network communications and resource allocations,” where “[a]dditional work experience can substitute for specific educational background, and vice versa.” Id. (citing Ex. 1003 ¶ 20). Patent Owner represents that it “does not dispute Petitioner’s definition” for the purposes of its Response. PO Resp. 5. We find Petitioner’s proposal is consistent with the evidence of record, including the asserted prior art and the ’279 patent, and, therefore, we likewise adopt Petitioner’s proposed definition of the level of ordinary skill in the art for purposes of this Decision.” slip op. at 11

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededNot reached

    “Neither party contends that any formal claim construction is necessary. See Pet. 12 (“Petitioner submits that, for the purposes of this proceeding and the grounds presented herein, no claim term requires express construction.”); PO Resp. 4 (“Here, at this stage in the proceeding, Patent Owner will apply the ordinary and customary meaning to the ’279 Patent’s claim terms.”). Patent Owner notes, however, that Petitioner had asserted specific constructions in the Cisco litigation for the term “predetermined,” as recited in claims 1, 10, 14–16, and 18, and for the term “quantum.” PO Resp. 4. Specifically, according to Patent Owner, Petitioner proposed that “predetermined” be construed as “determined before the data flow request” and that “quantum” be construed as “an amount of a requested resource by which to increase or decrease.” Id. (citing Ex. 2007). Patent Owner contends asserted prior art combinations disclose or render obvious the challenged claims under these constructions. Id. Because our conclusion that Petitioner has not demonstrated that any of the challenged claims are unpatentable does not turn on the construction of either “predetermined” or “quantum,” there is no need for us to construe those terms. See Realtime Data, 912 F.3d at 1375.” slip op. at 12

  • Strike new argumentNew argument disregardedDecided for patent owner

    “We again are not persuaded by Petitioner’s argument. As an initial matter, we find no argument with respect to “best effort data traffic” or dropped packets in the Petition. See Tr. 12:10–21 (conceding that “the phrase ‘best effort’ was not in the Petition” but arguing that it was raised in response to the Patent Owner Response). Moreover, we are unable to identify any argument in the Patent Owner Response to which this line of argument is properly responsive, and Petitioner does not identify any such line of argument. Instead, Petitioner’s argument appears to advance belatedly a new theory. See 37 C.F.R. § 42.23(b); Patent Trial and Appeal Board Consolidated Trial Practice Guide (Nov. 2019), 73–74, available at” slip op. at 43

  • Expert testimonyPatent owner expert creditedPetitioner expert discountedMixed

    “We credit the supporting testimony of Dr. Olivier on the points discussed above, as it is explained sufficiently and consistent with the testimony simply mirrors the Petition and does not explain sufficiently why a person of ordinary skill in the art would have understood Kovvali in the manner Petitioner asserts. See Pet. 35; Reply 17–18; Ex. 1003 ¶ 83.” slip op. at 44

  Patent outcomesUS 7,035,279 not shown unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 7,035,279
• Intel Corporation / Lenovo (United States) Inc. et al. v. Collision Communications, Inc.Institution denied
  PTAB · May 28, 2025 · IPR2025-00301 · APJ Bart A Gerstenblith · IPR · Institution

  The Board denied institution of review for claims 1–11, 16, and 21 under § 314(a), finding the Fintiv factors favored discretionary denial, and denied joinder.

  RulingsInstitution decision

  • PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Institution denied fintivInstitution denied

    “2026. This date is nearly five months prior to the date on which the final written decision would be due if trial were instituted in this proceeding. And, even if we assume Petitioner’s alleged February–March 2026 trial date, this date too is several months prior to the projected final written decision deadline. As such, it is unlikely that a final written decision in this proceeding would issue before trial in the district court, unless the trial was delayed or rescheduled for a later time. Thus, we find this factor weighs in favor of exercising our discretion to deny institution. See ARM Ltd. v. Daedalus Prime LLC, IPR2025-00207, Paper 10 at 2 (May 16, 2025) (Before the Office of the Under Secretary of Commerce for Intellectual Property and Director of the United States Patent and Trademark Office) (exercising discretion to deny institution with the same relative timing between district court trial and final written decision deadline).” slip op. at 13

  • PTAB / AIA Trials › Motions to amend / substitute claimsNot reached
  • PTAB / AIA Trials › Joinder §315(c) / SAS all-or-nothingJoinder, deniedDenied
  • PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied discretionary otherInstitution denied

    “presented in the petition . . . and any [preliminary] response . . . shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” 35 U.S.C. § 314(a). Institution of inter partes review, however, is discretionary. See Harmonic Inc. v. Avid Tech., Inc., 815 F.3d 1356, 1367 (Fed. Cir. 2016) (“[T]he PTO is permitted, but never compelled, to institute an IPR proceeding.”). For the reasons discussed below, we exercise discretion pursuant to 35 U.S.C. § 314(a) not to institute inter partes review. Additionally, for the same reasons and because institution was denied in IPR2024-01248, we deny Petitioner’s Motion for Joinder. See 35 U.S.C. § 315(c) (“[T]he Director . . . may join as a party . . . any person who properly files a petition under section 311 that the Director . . . determines warrants the institution of an inter partes review under section 314.”).” slip op. at 3

  Discretionary denial
  Patents in suitUS 9,814,071
• Xu Peicheng (Hong Kong) Optoelectronic Technology Co., Limited v. Semisilicon Technology Corp.Some claims unpatentable
  PTAB · May 14, 2025 · IPR2024-00156 · APJ Sheila F Mcshane · IPR · Final written decision

  Claims 1–3 and 8 are unpatentable over the stated obviousness grounds; claims 4–6 were not shown unpatentable because Hiroyuki does not teach the claimed terminal pins.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “II. ANALYSIS A. Level of Ordinary Skill in the Art Relying on the Schubert Declaration, Petitioner proposes that a person of ordinary skill in the art “would have had a bachelor’s degree in electrical engineering, physics, materials science, or a related discipline, and 6 years of 1 The Leahy-Smith America Invents Act (“AIA”), Pub. L. No. 112–29, 125 Stat. 284 (Sept. 16, 2011), includes amendments to Section 103 that became effective on March 16, 2013. Because the challenged claims issued from an application filed before March 16, 2013, we apply pre-AIA law. See Pet. 2; Ex. 1001, codes (22), (30). 2 US 2009/0021955 A1, published January 22, 2009 (Ex. 1004, codes (10), (43)) (“Kuang”). Petitioner contends that Kuang is prior art to the ’546 patent at least under pre-AIA 35 U.S.C. § 102(b). Pet. 2. 3 US 2012/0050606 A1, published March 1, 2012 (Ex. 1005, codes (10), (43)) (“Debevec”). Petitioner asserts that “[b]ecause Debevec was filed prior to the priority date of the ’546 patent, it qualifies as prior art at least under pre-AIA 35 U.S.C. § 102(e).” Pet. 2. 4 US 6,774,584 B2, issued August 10, 2004 (Ex. 1008, codes (10), (45)) (“Lys”). Petitioner contends that Lys is prior art to the ’546 patent at least under pre-AIA 35 U.S.C. § 102(b). Pet. 2–3. 5 JP2006-228529, published August 31, 2006 (Ex. 1006, code (43)) (“Hiroyuki”). We refer herein to the certified English translation filed as Exhibit 1007. Petitioner contends that Hiroyuki is prior art to the ’546 patent at least under pre-AIA 35 U.S.C. § 102(b). Pet. 2. practical experience in designing or fabricating LED lighting systems, including controlling and driving LEDs,” or “[a]lternatively . . . would have had a master’s degree and four years of experience, or a Ph.D. degree and two years of experience.” Pet. 5 (citing Ex. 1003 ¶ 31). Patent Owner applies Petitioner’s asserted level of ordinary skill in the art. PO Resp. 7–8. For the purposes of this Decision, we adopt the assessment offered by Petitioner as it is consistent with the ’546 patent and the prior art before us. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 16

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededNot reached

    “The parties also dispute the interpretation of the term “synchronous signals” recited in claim 1, with the parties proposing these respective constructions: Petitioner’s Proposed Patent Owner’s Proposed Construction Construction “signals that are sent to the slave “signals related to activities governed by synchronized timing” nodes to control their corresponding LED strings at the same time.”” slip op. at 20

  • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed petitioner constructionDecided for petitioner

    “The “context” is typically evaluated by reviewing the intrinsic record. See e.g., Regeneron, 130 F.4th at 1380–84. Here, as discussed above, the ’546 patent has multiple disclosures where a curtain lamp has a single light-emitting diode in one light-emitting diode string. See Ex. 1001, 1:33–36, 6:15–20, 6:27–40, 8:25–45. In particular, the ’546 patent similarly discloses a first curtain lamp with one LED in one light string, as well as a second curtain lamp, which provides further support for Petitioner’s proposed interpretation. Id. at 8:25–45. Although Patent Owner argues that Figures 7 and 8 disclose multiple LEDs and light strings in curtain lamps, other embodiments and claims explicitly indicate single components in a “curtain lamp.” “[T]here is a strong presumption against a claim construction that excludes a disclosed embodiment.” See In re Katz Interactive Call Processing Patent Litig., 639 F.3d 1303, 1324 (Fed. Cir. 2011). Given that certain embodiments and claim 8 disclose a curtain lamp with one light string with one LED, we decline to interpret the claim to prohibit Petitioner’s interpretation. Additionally, we do not find that Petitioner’s claim interpretation renders the claim terms nonsensical or illogical. See Becton, 616 F.3d at 1255. Patent Owner asserts otherwise, arguing that Petitioner’s interpretation is based upon a “nonsensical” or “absurd[]” argument, there is no reason to have both a master and slave control unit to operate a single LED, and the interpretation renders most of the components superfluous. See PO Sur-reply 12; PO Resp. Supp. Br. 5. As discussed above, however, although the ’546 patent does not appear to provide any explanation for why there are master and slave control units to operate a single LED, the patent nevertheless discloses that in embodiments. This situation is also distinguishable from Becton, where “unequivocal language” of the claim recited “spring means ‘connected to’ the hinged arm,” such that interpreting the spring means and the hinged arm as the same structure would have rendered the claim nonsensical. Becton, 616 F.3d at 1254–55. Becton further found that interpreting the spring means and hinged arm as the same structure would be inconsistent with descriptions of the elements in the specification. Id. Here, in contrast, the ’546 patent Specification is replete with disclosures of a curtain lamp having one light string with one LED, and claim 8 is directed to the same. Accordingly, we adopt Petitioner’s interpretation of these claim elements.” slip op. at 36

  • Strike new argumentNew argument consideredDecided for petitioner

    “Although Patent Owner argues that Petitioner’s arguments in the Reply on “light strings” and “curtain lamp” as they relate to a single LED are improper, we do not agree. As Patent Owner acknowledges, the Petition and Dr. Schubert’s original declaration stated that a “curtain lamp” is “commonly understood to be one or more light strings.” See PO Sur-reply 12; see also Pet. 8; Ex. 1003 ¶ 37. Patent Owner did not contest Petitioner’s interpretation in its Response. See PO Resp. 15. Patent Owner did, however, argue that Kuang did not teach or suggest “light strings” in any form and therefore did not teach a “curtain lamp” under Petitioner’s definition of the same. PO Resp. 15–17. A petitioner reply may respond to arguments raised in a patent owner’s response under 35 U.S.C. § 42.23(b), and here Petitioner’s argument that a light string may have a single LED is properly presented in its Reply in response to Patent Owner’s arguments. Further, Patent Owner was not only aware that Petitioner had taken the position that a “curtain lamp” could be a single “light string,” but Patent Owner also did not dispute Petitioner’s interpretation.8 Our view, therefore, is that Petitioner’s argument that a curtain lamp may be a single LED is proper because it is corollary to Petitioner’s reply arguments on light strings. That is, Petitioner’s assertion follows from the reply arguments on light strings and the unopposed interpretation of curtain lamp as a single light string. Additionally, to the extent there could be any prejudice to Patent Owner by these light string and curtain lamp arguments, Patent Owner has had opportunities to address them by supplemental briefing.” slip op. at 32

  Patent outcomesUS 8,884,546 mixed
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 8,884,546
• Cisco Systems, Inc. v. Portsmouth Network Corp.Instituted
  PTAB · May 2, 2025 · IPR2024-01450 · APJ Justin T Arbes · IPR · Institution

  Instituted inter partes review of claims 1–4, 6–11, and 13–20 on all asserted grounds after finding a reasonable likelihood that claim 1 is unpatentable over Dziong and Sathyanath.

  RulingsInstitution decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “B. Level of Ordinary Skill in the Art Petitioner argues that at the time of the ’088 patent (January 2006), a person of ordinary skill in the art would have had “a bachelor’s degree in computer science, computer engineering, electrical engineering, or equivalent training, and approximately four years of experience working in the field of network communications, including experience with [Multiprotocol Label Switching (MPLS)] tunnels and bandwidth allocation,” where “[a]dditional work experience can substitute for specific educational background, and vice versa.” Pet. 12 (citing Ex. 1003 ¶¶ 20–21). Petitioner further contends that a person of ordinary skill in the art would have been knowledgeable and familiar with the network communications technologies discussed in [the Specification of the ’088 patent], including bandwidth reservations, quality of service techniques, routing protocols (including Open Shortest Path First (OSPF)), tunneling protocols (including [MPLS]), resource reservations (including Resource ReSerVation Protocol (RSVP)), traffic engineering (including relevant extensions to OSPF, IS-IS, and RSVP), and ring networking standards (e.g., Synchronous Optical Network (SONET) and resilient packet ring (RPR) defined by IEEE 802.17). Id. Patent Owner states that “Petitioner’s definition . . . is acceptable for” purposes of its Preliminary Response. Prelim. Resp. 8 n.3. Based on the record presented, including our review of the ’088 patent and the types of problems and solutions described in the ’088 patent and cited prior art, we agree with Petitioner’s proposed definition of the level of ordinary skill in the art and apply it for purposes of this Decision.” slip op. at 9

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededNot reached

    “37 C.F.R. § 42.100(b). Petitioner argues that “no claim term requires express construction.” Pet. 12–13. Patent Owner does not propose interpretations of any claim terms in its Preliminary Response. We conclude that no express interpretation of any claim term is necessary to determine whether to institute an inter partes review in this proceeding. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (“Because we need only construe terms ‘that are in controversy, and only to the extent necessary to resolve the controversy,’ we need not construe [a particular claim limitation] where the construction is not ‘material to the . . . dispute.’” (citation omitted) (emphasis added)).” slip op. at 10

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Instituted

    “Patent Owner, however, does not explain sufficiently why any of these issues demonstrate a failure to teach limitation [1.1]. We understand Petitioner’s position to be that Dziong identifies “two or more candidate routes” (i.e., A-B-C-D and A-C-D) for a “new connection” (i.e., a new recovery path to protect primary path SRLG 4 in the event of failure) with a “requested bandwidth” (i.e., 15 units) sufficient to protect against failure. See Pet. 27–31 (citing Ex. 1005 ¶¶ 36, 70, 89, 90, 104, 105). The 15 units are the “units of demand” on SRLG 4 that must be protected. Ex. 1005 ¶¶ 89 (“[E]ach solid line represents all of the demands that have the same link-detour path, which is represented by a corresponding broken line. For example, solid line 606 in SRLG 4 corresponds to one or more demands totaling 15 units of bandwidth between nodes A and D.”), 90. A link in a potential recovery path for that demand on SRLG 4, therefore, would need to have “sufficient recovery bandwidth” to protect against failure (i.e., at least 15 units). Id. ¶¶ 36, 104. That is reflected in the “SRLG 4 failure” column of Figure 6(b) for link A-B (part of the A-B-C-D recovery path shown in blue in Figure 6(a) above). On this record, we do not see why the fact that link A-B also protects against failures of SRLG 3 and 5 and has its own 12 units of demand, or the fact that SRLG 4 also has another 24 units of demand (which link A-B does not protect against), contradicts Petitioner’s position regarding Dziong and limitation [1.1]. See id. ¶¶ 89–90 (“link A-B is not part of the link-detour path for the other 24 XC units of demand on SRLG 4”). At this stage, we find that Petitioner has made a sufficient showing that Dziong teaches limitation [1.1]. Therefore, we need not evaluate any additional arguments regarding Sathyanath at this time. See Pet. 31–32; Prelim. Resp. 14–16.” slip op. at 23

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundInstituted

    “We disagree based on the current record. Dziong refers to both “link-based” and “path-based” recovery. Ex. 1005 ¶¶ 6–8. And the two methods are similar in various ways, as Dziong recognizes. See, e.g., id. ¶¶ 69 (“While some of the algorithms utilized in a link-based scheme are related to path-based recovery algorithms, there are significant modifications and special considerations that are made in the case of link-based recovery.”), 103 (“In some areas, the issues associated with recovery path calculation for link-based recovery [are] analogous to recovery path calculations for path-based restoration . . . .”). Dziong also purports to incorporate Sathyanath’s application by reference. Id. ¶ 1. And, as Petitioner points out, the references have similar disclosures and similar discussions of bandwidth sharing. See Pet. 1, 20–22; Ex. 1005 ¶¶ 10–12, 36–39, 60, 65, 88; Ex. 1006 ¶¶ 4, 12–13, 41–45, 200. Thus, on this record, we disagree with Patent Owner that a person of ordinary skill in the art would not consider combining the teachings of Dziong and Sathyanath. See In re Applied Materials, Inc., 692 F.3d 1289, 1298 (Fed. Cir. 2012) (“A reference must be considered for everything that it teaches, not simply the described invention or a preferred embodiment.”); In re Hyon, 679 F.3d 1363, 1366 (Fed. Cir. 2012) (affirming an obviousness determination where two “references both teach processes directed to making the same class of products” and minor differences between the disclosures did not “negate the motivation to combine”). Second, Patent Owner argues that Petitioner “fails to identify specific teachings in Sathyanath that a [person of ordinary skill in the art] would have been motivated to implement in Dziong with a reasonable expectation of success” and “does not explain how the features would have been combined or why there would have been a reasonable expectation of success in doing so.” Prelim. Resp. 11. Patent Owner, however, only mentions Petitioner’s introductory statement regarding reasons to combine and does not address the substance of Petitioner’s arguments for claim 1, where Petitioner explains how it is relying on Sathyanath as a secondary reference. See Prelim. Resp. 10–11 (citing Pet. 22–23). For example, regarding the “sharing definition” of limitation [1.2], Petitioner argues that because Dziong only gives “limited details about the data format used for sharing” reserved bandwidth information, “it would have been obvious to consider . . . Sathyanath’s examples,” relying on two particular alleged “sharing definition[s]” in Sathyanath (i.e., the “aggregate node-link vector” and “TE/Share database”). Pet. 36–39. Based on the current record, we preliminarily find that Petitioner has made a sufficient showing, supported by the testimony of Dr. Mir, that a person of ordinary skill in the art would have been motivated to use such data formats to share reserved bandwidth information in the system of Dziong, with a reasonable expectation of success. See id.; Ex. 1003 ¶¶ 38–39, 72–79.” slip op. at 38

  Claim construction§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 7,596,088
• Samsung Electronics America, Inc. / Samsung Electronics Co., Ltd. v. Collision Communications, Inc.Institution denied
  PTAB · Apr 28, 2025 · IPR2024-01500 · APJ Neil T Powell · IPR · Institution

  Institution of IPR challenging claims 1–5 was denied because Petitioner did not show a reasonable likelihood of prevailing on any asserted obviousness ground.

  RulingsInstitution decision

  • PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied

    “An inter partes review may not be instituted “unless . . . the information presented in the petition . . . shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” 35 U.S.C. § 314(a). For the reasons that follow, we do not institute inter partes review.” slip op. at 2

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “of ordinary skill in the art at the time of the invention would have had “at least a bachelor’s degree in electrical engineering, computer engineering, computer science, physics, or an equivalent field, and two years of experience with cellular telecommunications, radio-access network architectures and protocols, and signal propagation in wireless networks.” Pet. 7 (citing Ex. 1003 ¶ 54). Petitioner further proposes that “[m]ore education can supplement practical experience and vice versa.” Id. (citing Ex. 1003 ¶ 54). 6 Elgamal, U.S. Patent No. 6,898,248 B1, issued May 24, 2005 (Ex. 1008, “Elgamal”). 7 Frank et al., U.S. Patent Application Publication No. 2003/0035469 A1, published Feb. 20, 2003 (Ex. 1006, “Frank”). 8 Zha et al., “Soft-Decision Successive Interference Cancellation CDMA Receiver with Amplitude Averaging and Robust to Timing Errors,” Proc. IEEE Global Telecommunications Conference, 2001 (GLOBECOM ’01), vol. 2, 2001, pp. 743–747 (Ex. 1010, “Zha”). In its Preliminary Response, Patent Owner does not take a position on the relevant level of ordinary skill in the art. See generally Prelim. Resp. At this stage of the proceeding and on the present record, we adopt Petitioner’s uncontested proposed level of ordinary skill in the art, which we find consistent with the level of ordinary skill in the art reflected by the ’703 patent and the prior art of record. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001); In re GPAC Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995); In re Oelrich, 579 F.2d 86, 91 (CCPA 1978).” slip op. at 7

  • Expert testimonyPetitioner expert discountedDecided for patent owner

    “provide sufficiently persuasive evidence in support of its position that claim 1’s “decoders” has a meaning broad enough to correspond to Zha’s decision rule. Petitioner disputes Patent Owner’s understanding of claim 1’s “decoders” by arguing that “[Patent Owner] does not argue that the specification disclaims decoders that do not perform error correction, or otherwise expressly limits the claimed bank of decoders to error correction.” Prelim. Reply 6. In support of its position, Petitioner cites Dr. Min’s testimony that “[i]n my opinion, a [person of ordinary skill in the art] would have understood that the ‘decision rule’ would be implemented using a decoder, as decoders typically make bit decisions.” Ex. 1003 ¶ 178; Pet. 59. Dr. Min does not cite any objective evidence in support of this view. Ex. 1003 ¶ 178. In response, Patent Owner marshals intrinsic evidence, along with Dr. Caire’s testimony based on objective supporting evidence. Prelim. Resp. 47–48; Prelim. Sur-Reply 5–6. For example, arguing that all embodiments disclosed in the ’703 patent use error-correcting coding, Patent Owner emphasizes the ’703 patent’s statement that “the [’703 patent’s] specification states that ‘[t]he invention is based on an iterative decoding solution that exploits error correction codes.’” Prelim. Sur-Reply 6 (quoting Ex. 1001, 25:27–29 (emphasis added by Patent Owner)). Patent Owner also cites the Abstract of the ’703 patent, which states that “[t]he present invention provides Turbo-decoding for joint signal demodulation based on an iterative decoding solution that exploits error correction codes.” Ex. 1001, code (57); Prelim. Sur-Reply 6. Patent Owner also cites Dr. Caire’s testimony that “any reasonable understanding of a decoder is one that implements an error correction coding approach.” Ex. 2001 ¶ 98; Prelim. Resp. 47. Dr. Caire cite objective evidence that supports this view. Ex. 2001 ¶ 98 (citing Ex. 2003, 3; Ex. 2004, 11; Ex. 2005, 228). Weighing the parties’ arguments and evidence, we find Patent Owner’s more persuasive than Petitioner’s. Starting with the intrinsic evidence, Patent Owner’s citation of the ’703 patent’s repeated statements that the “invention . . . exploits error correction codes” is more persuasive than Petitioner’s argument that the ’703 patent does not disclaim other approaches. Prelim. Sur-Reply 6 (citing Ex. 1001, 25:27–29, code (57)); Prelim. Reply 6. Petitioner argues that certain background documents suggest decoders may have a broad meaning, but this attorney argument warrants less weight than Dr. Caire’s testimony. Prelim. Reply 7 (citing Ex. 2003, 18–20; Ex. 2004, 7, 9). Accordingly, in sum, Petitioner does not” slip op. at 16

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not reached

    “In view of all the parties’ arguments and evidence, we do not find a reasonable likelihood of Petitioner prevailing on this issue. When questioning who exactly had rights to which specific inventions of Mr. McElwain’s, Petitioner glosses over the key, undisputed fact that Mr. McElwain assigned the invention of the ’703 patent to the exact same entity to which Brommer was assigned, specifically BAESI. Ex. 2012, 2; Ex. 2011, 2. Mr. McElwain did so shortly after BAE filed Mr. McElwain’s provisional application on April 14, 2003, which both parties treat as the ’703 patent’s date of invention. Ex. 2012, 2; Ex. 2013, 1; Prelim. Resp. 32; Prelim. Reply 1. This, in combination with Patent Owner’s evidence regarding Mr. McElwain’s EPIIA and BAE’s acquisition of Lockheed Martin’s Aerospace Electronics System Business, evinces that Mr. McElwain had an obligation on April 14, 2003, to assign the invention of the ’703 patent to BAESI. Exs. 2014–2016. As Patent Owner notes, Petitioner does not advance a reason that Mr. McElwain would not have been obligated on April 14, 2003, to assign the invention of the ’703 patent to BAESI, much less provide evidence that he was not so obligated. See generally Prelim. Reply; Prelim. Sur-Reply 2. In sum, weighing the parties’ arguments and evidence, we do not find that Petitioner has a reasonable likelihood of prevailing on its position that Brommer is prior art to the ’703 patent for purposes of obviousness. Accordingly, we do not find that Petitioner has demonstrated a reasonable likelihood of prevailing on any of its assertions that the claims of the ’703 patent would have been obvious over Brommer in combination with other references.” slip op. at 20

  § 103 obviousnesscites Phillips
  Patents in suitUS 7,463,703
• Samsung Electronics America, Inc. / Samsung Electronics Co., Ltd. v. Collision Communications, Inc.Institution denied
  PTAB · Mar 21, 2025 · IPR2024-01250 · APJ Bart A Gerstenblith · IPR · Institution

  The Board denied institution because Petitioner did not show a reasonable likelihood of proving claims 1–5, 7, 9–16, or 20 unpatentable over the asserted grounds.

  RulingsInstitution decision

  • PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied

    “An inter partes review may be instituted only if “the information presented in the petition . . . and any [preliminary] response . . . shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” 35 U.S.C. § 314(a) (2018). For the reasons given below, on this record Petitioner has not established a reasonable likelihood that it would prevail in showing the unpatentability of any of the Challenged Claims. Accordingly, we do not institute an inter partes review.” slip op. at 2

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “B. Level of Ordinary Skill in the Art Petitioner, supported by Dr. Min’s testimony, proposes that a person of ordinary skill in the art at the time of the invention would have had “at least a bachelor’s [degree] in [electrical engineering, computer engineering, or computer science], physics, or equivalent, and two years of experience with cellular telecommunications, radio-access network architectures, protocols and signal propagation in wireless networks.” Pet. 3 (citing Ex. 1003 ¶ 59). Dr. Min testifies that “[a]dditional education could substitute for professional experience and vice versa.” Ex. 1003 ¶ 59. Additionally, Petitioner contends that Dr. Min “exceeded this level of experience by the priority date.” Pet. 3 (citing Ex. 1010 (curriculum vitae of Dr. Min)). In its Preliminary Response, Patent Owner does not take a position on the relevant level of ordinary skill in the art. See generally Prelim. Resp. At this stage of the proceeding and on the present record, we adopt Petitioner’s uncontested proposed level of ordinary skill in the art, which we find consistent with the level of ordinary skill in the art reflected by the ’946 patent and the prior art of record. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001); In re GPAC Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995); In re Oelrich, 579 F.2d 86, 91 (CCPA 1978).” slip op. at 10

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededNot reached

    “Neither party contends that any claim terms require an express construction to resolve the present controversy. Pet. 8 (“For purposes of this Petition only, Petitioner does not believe any terms require a formal construction.”); see generally Prelim. Resp. Nonetheless, Petitioner explains that the Petition is structured such that “Ground 1 is based on Patent Owner’s infringement contentions in the district court litigation, where the claimed ‘MUD module’ is generally mapped to multiple-input multiple-output (MIMO) receivers in a wireless network.” Pet. 2. Petitioner contends that “[u]nder this broad interpretation of a ‘MUD module,’ Walton’s MIMO receiver renders every challenged claim obvious.” Id. In contrast to Ground 1, the Petition states that “Ground 2 is based on the plain meaning of ‘MUD module,’ which is a component that detects, separates, and decodes signals from multiple users transmitting simultaneously over the same frequency band.” Id. Petitioner contends that, “[a]pplying the correct meaning of the term, Walton’s MIMO receiver does not necessarily comprise a MUD module.” Id. Therefore, Petitioner explains that “Ground 2 combines Walton with Learned, which expressly discloses [a] multi-user detector, and thus renders every challenged claim obvious in combination with Walton.” Id. at 2–3.7 In other words, the Petition presents Ground 1 and Grounds 2/3 as alternatives depending on the meaning of 7 Although not specifically relevant to claim construction, Petitioner explains that “Ground 3 further combines Walton and Learned with Quigley, to the extent Patent Owner argues Walton does not disclose providing a burst control input.” Pet. 3. “MUD module,” where Ground 1 is based on Petitioner’s understanding of Patent Owner’s interpretation of the term and Grounds 2 and 3 are based on Petitioner’s interpretation of the term as having its plain meaning. Petitioner further contends that “[e]very other claim term carries its ‘ordinary and customary meaning’ . . . .” Id. at 8. Although Petitioner presents a potential dispute regarding the meaning of “MUD module,” we need not construe this term expressly because the determination we reach herein does not depend on which meaning MUD module is applied. Accordingly, we do not construe any claim terms expressly because express constructions are not necessary to resolve the controversy before us. See Realtime Data, 912 F.3d at 1375.” slip op. at 12

  • PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Not reached

    “IV. DISCRETIONARY DENIAL Patent Owners contends that the factors set forth in Apple Inc. v. Fintiv, Inc., IPR2020-00019, Paper 11 at 9 (PTAB Mar. 20, 2020) (precedential), weigh heavily in favor of discretionary denial. Prelim. Resp. 40–46; Paper 10. Petitioner disagrees. Pet. 74–77; Paper 9. In light of the conclusion reached above, we need not address the parties’ arguments regarding discretionary denial.” slip op. at 25

  Claim construction§ 103 obviousnessDiscretionary denialcites Phillips · KSR · Graham
  Patents in suitUS 8,089,946
• Samsung Electronics America, Inc. / Samsung Electronics Co., Ltd. v. Collision Communications, Inc.Institution denied
  PTAB · Mar 21, 2025 · IPR2024-01248 · APJ Bart A Gerstenblith · IPR · Institution

  The Board denied institution because the Petition did not show a reasonable likelihood of proving claims 1–11, 16, and 21 unpatentable over the asserted obviousness grounds.

  RulingsInstitution decision

  • PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied

    “presented in the petition . . . and any [preliminary] response . . . shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” 35 U.S.C. § 314(a) (2018). For the reasons given below, on this record Petitioner has not established a reasonable likelihood that it would prevail in showing the unpatentability of any of the Challenged Claims. Accordingly, we do not institute an inter partes review.” slip op. at 2

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “At this stage of the proceeding and on the present record, we adopt Petitioner’s uncontested proposed level of ordinary skill in the art, which we find consistent with the level of ordinary skill in the art reflected by the ’071 patent and the prior art of record. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001); In re GPAC Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995); In re Oelrich, 579 F.2d 86, 91 (CCPA 1978).” slip op. at 12

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther

    “Neither party proposes a specific construction of any claim term, although Petitioner contends each term should be construed according to its plain and ordinary meaning. Pet. 16; see generally Prelim. Resp. Accordingly, we need not construe any claim terms expressly because the meaning of the terms is not in dispute and an express construction is not necessary to resolve the controversy before us.” slip op. at 13

  • BurdenNot shown unpatentable

    “We find the Petition lacking in particularity because it does not clearly identify what aspect of Jin is alleged to teach the unique signal parameters (or unique estimated signal parameters) recited in claim 1. See, e.g., 35 U.S.C. § 312(a)(3) (“A petition filed under section 311 may be considered only if — (3) the petition identifies, in writing and with particularity, . . . the evidence that supports the ground for the challenge to each claim . . . .”). First, as reflected above, the Petition asserts that something called a “unique pilot parameter” teaches the recited unique estimated signal parameters. But “unique pilot parameter” is not a term or phrase recited in Jin. See Prelim. Resp. 19 (arguing the same). So, when Petitioner states “Jin discloses that the base station uses the unique pilot parameter (i.e., ‘unique estimated signal parameters’) to ‘identify which user (i.e., mobile terminal) has transmitted the received data,’” it is not clear what element in Jin Petitioner intends to identify by the term “unique pilot parameter.” Dr. Min’s testimony does not help resolve the ambiguity in the Petition. In particular, Dr. Min also refers to a “unique pilot parameter (i.e., ‘unique signal parameter’) for each user.” Ex. 1003 ¶ 89. But, as noted above, Jin does not disclose an element referred to as a “pilot parameter” and it is not clear what element Dr. Min intended to identify in Jin.8” slip op. at 18

  Claim construction§ 103 obviousnessDiscretionary denialcites Phillips · KSR · Graham
  Patents in suitUS 9,814,071
• Cellco Partnership D/B/A Verizon Wireless / T-Mobile USA, Inc. et al. v. Aspen Networks, Inc.Institution denied
  PTAB · Mar 17, 2025 · IPR2025-00008 · APJ Donald E Daybell · IPR · Institution

  The Board denied institution because Petitioner did not show a reasonable likelihood that claims 1–28 were unpatentable over Tagg or Kottilingal and Politis.

  RulingsInstitution decision

  • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for patent owner

    “There is, however, a consistent thread that flows through the relevant disclosures of the specification; namely, that the “state involving the SIP sequence” is maintained throughout a dialog. Ex. 1001, 5:1–38 (step 210); see also id. (step 160). Using the method of Figure 4, including steps 160 and 210 and maintaining the SIP signaling state, is how the ’554 Patent discloses that calls are not broken or dropped. See, e.g., id. at 7:10–25. Maintaining the “state” of the SIP signaling sequence includes (but is not limited to) the teachings that a “SIP signaling sequence number” is maintained, as well as the details of how that number is maintained, as set forth in the specification. We find that the state of the SIP signaling sequence as that term is used in the specification refers to the rules (or paradigm) used to identify a collection of SIP signals as a “SIP signaling sequence,” and in particular the rules used to identify the next SIP packet received as belonging to a sequence of packets previously received. One key to the disclosed invention discussed in the specification is the concept that the invention prevents a call 3:45–4:9. The specification contends that the invention accomplishes this goal by configuring the packets involved in a VoIP call such that the receiving device (e.g., a SIP server) is able to recognize those packets as belonging to the same call, even though the packets are received over different paths. Id. at 7:35–50; 7:60–8:3. The particular way that the receiving devices are able to recognize that the packets are part of the same call is, per the claims, because the SIP signaling sequence is maintained after a network switch. Id. at 8:27–29. Thus, where a sequence of SIP signals uses numbers such as cseq values, there is a rule for identifying what the next signal in the sequence is. Ex. 1001, 5:1–38. A receiving device that knows the rule can identify an incoming packet as the next packet in the same signaling sequence as previously received packets, by applying the rule. Id. at 7:35–50. The specification provides one example rule, that the next SIP signal bears a monotonically-increasing cseq number. Id. at 5:1–38. But there could be other such rules as well. For example, the value could be monotonically decreased, or the value could be determined using some other formula.8 The claims also do not require that the sequence of SIP signals use “numbers” as sequence identifiers.9 Other labeling paradigms could be possible as well, 8 Patent Owner’s litigation claim construction improperly imports implementation details from the preferred embodiment, such as “cseq numbers” and the limitations that these numbers “monotonically increase” for new transmissions, or be “preserved” for re-transmissions. While such embodiments would be one way of maintaining a SIP signaling sequence, the specification does not clearly limit the invention to only these embodiments. 9 Petitioner’s litigation claim construction improperly imports the limitation from the preferred embodiment that the SIP signaling sequence must be” slip op. at 14

  • Skill levelSkill level board ownDecided for patent owner

    “as of the time of the invention of the ’554 Patent “would have been familiar with designing rules for implementing policies for service plans for use of an access network and provisioning those rules to network elements for policy enforcement” and would have gained this knowledge through a mixture of training and work experience, such as by having a Bachelor’s degree in electrical engineering or computer science and two years of experience; or by obtaining a Master’s degree in electrical engineering or computer science, but having only one year of experience; or by having no formal education but experience in network service plan provisioning systems of at least four years. Pet. 10. 4 The Leahy-Smith America Invents Act (“AIA”), Pub. L. No. 112–29, 125 Stat. 284, 287–88 (2011), amended 35 U.S.C. § 103. Because the ’554 Patent was filed before the effective date of the relevant amendment, the pre- AIA version of §103 applies. that a POSITA must specifically have “been familiar with designing rules for implementing policies for service plans for use of an access network and provisioning those rules to network elements for policy enforcement.” Prelim. Resp. 17–18. At this juncture, we adopt the agreed-upon portion of Petitioner’s definition, without the specific requirement relating to designing rules. This definition appears to be consistent with what is reflected by the content of the applied prior art references. Cf. Okajima v. Bourdeau, 261 F.3d 1350, 1354–55 (Fed. Cir. 2001) (recognizing that the applied prior art may reflect an appropriate level of skill). Our analysis would be the same under either definition.” slip op. at 8

  • PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied

    “determine whether to institute review. Upon consideration of the arguments and evidence before us, we conclude that Petitioner has not shown a reasonable likelihood of success in establishing that any claim of the ’554 Patent is unpatentable, and thus we decline to institute review. The Petition is denied, and inter partes review is not instituted.” slip op. at 2

  • Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Not shown unpatentableNot shown unpatentable

    “We disagree with Petitioner’s view of Tagg. At best, the cited portions of Tagg disclose that SIP is used by endpoint 1512 to communicate with SIP server 1500, and by the SIP server to communicate with SIP proxy 1504. Figure 15 discloses that SIP is used for both of the paths from endpoint 1520 to SIP server 1500, via the WWAN or the WLAN. Figure 15 further discloses that SIP is used for the path from SIP server 1500 to SIP proxy 1504. But Figure 15 and the accompanying text are silent about any “sequences” of SIP signals at all, much less whether any such “sequences” are maintained, as required by the language of limitation 1.6. Ex. 1005 ¶¶ 324–346, Fig. 15. Instead, Tagg’s specification simply discloses that SIP is used to perform call management functions. Id. ¶¶ 245–247. Tagg’s cases 1 and 6, relied on by Petitioner, teach that Tagg’s server can ensure that the end user appears to the rest of the world (i.e. the devices upstream of the SIP server) as if no network change is being made. Ex. 1005 ¶ 320. Tagg further teaches that either “make before break” or “make and break” schemes may be used. Id. But these cases do not explain how any SIP signaling sequences are used, much less how or even that any SIP signaling sequence is maintained when a network switches. At most, Tagg teaches that each path will have an IP (Internet Protocol) address, which may be the same or different for each path. Id. ¶ 288. But IP addresses are part of the IP disclosing or suggesting that IP addressing schemes are maintained or otherwise accounted for in a network switch, that would not be sufficient to disclose or suggest that SIP signal sequences are maintained. Furthermore, under our construction of limitation 1.6, it must be shown that the same rules or paradigm used to identify that an incoming SIP packet is the next SIP packet in a sequence, regardless of whether that packet is transmitted on the first network path or the one of a plurality of alternative network paths. The Petition is silent on this point. The closest Petitioner comes is the assertion that Figure 15 depicts preservation of “the same SIP signaling sequence,” with the Petitioner’s explanation being that Tagg allows simultaneous connections across a WWAN and a WLAN, and that “POSITAs would have understood that Tagg’s SIP protocol uniformity in directionality teaches that a ‘SIP signaling sequence . . . is maintained.’” Pet. 39–40.” slip op. at 22

  Claim construction§ 103 obviousnessDiscretionary denialcites Phillips · KSR · Graham
  Patents in suitUS 8,009,554
• Peloton Interactive, Inc. v. NEC CorporationAll claims unpatentable
  PTAB · Feb 5, 2025 · IPR2023-01241 · APJ Christopher L Ogden · IPR · Final written decision

  Claims 10–13, 19, 21, 23, and 33 are unpatentable as obvious over Ueda, the SIP Standard, and the SDP Standard, with Cohee added for claims 11, 13, 19, and 23.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedOther

    “Petitioner argues that a person of ordinary skill in the art “would have had a bachelor’s degree, or equivalent, in electrical engineering, computer science, or a related field, and 2–3 years of experience researching, designing, or developing content delivery systems and related hardware, software, and firmware, or equivalent experience.” Pet. 4 (citing Ex. 1008 ¶¶ 36–40). Patent Owner does not dispute this. See PO Resp. 3 (citing Ex. 2001 ¶ 22). Because it is uncontested, supported by testimonial evidence, and appears consistent with the types of problems and solutions in the ’427 patent, we adopt the above articulation of the level of ordinary skill for this decision.” slip op. at 12

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededNot reached

    “We agree with Patent Owner that the term should be construed according to its ordinary and customary meaning, and that we need not construe the term explicitly because the meaning of the term is not relevant to the contested issues in the proceeding. See Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019) (“The Board is required to construe ‘only those terms . . . that are in controversy, and only to the extent necessary to resolve the controversy.’” (quoting Vivid Techs., Inc. v. Am. Sci & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999))).” slip op. at 13

  • Novelty / Anticipation (§102) › Priority / effective filing date / continuation supportReference is prior artDecided for petitioner

    “Having considered all the evidence of record relating to Mr. Taniguchi’s activities during the relevant time frame, we find that Patent Owner has not produced sufficient corroborating evidence to show that Mr. Taniguchi’s work on reducing to practice the claimed invention was reasonably continuous during the critical period between September 19, 2008 (the filing date of Ueda), and November 18, 2008 (the filing date of the Japanese patent application). Although there is corroborating evidence of diligence beginning on November 6, 2008, when Mr. Taniguchi transmitted a draft application to the Baba law firm, there is no evidence of any diligence prior to that date, other than Mr. Taniguchi’s own testimony. We do not agree with Patent Owner that the evidence of Mr. Taniguchi’s other activities for NEC, or research relating to IPTV, corroborate Mr. Taniguchi’s reduction to practice of the claimed invention. Although these activities may have something to do with the general subject matter of IPTV, Patent Owner has not shown any nexus between these activities and the challenged claims. See Naber, 567 F.2d at 385 (“It is well settled that, to satisfy the ‘reasonable diligence’ requirement . . . , the work relied on must ordinarily be directly related to reduction to practice of the invention . . . in issue.” (citing cases)). Although Mr. Taniguchi doubtlessly spent substantial time preparing the application he completed on November 6, 2008 (see Ex. 2017), there is no corroborating evidence that this work was reasonably continuous during the critical period. As far as the corroborating evidence attests, Mr. Taniguchi could have done no work on the draft until early November, or he could have worked on the draft briefly in August and put it aside until early November. Considering all the evidence as to Mr. Taniguchi’s activities, we find that Patent Owner has not met its burden of producing corroborating evidence that the named inventors of the ’427 patent exercised reasonably continuous diligence during the critical period when Ueda was filed until the constructive reduction to practice that occurred on November 18, 2008. Therefore, we determine, by a preponderance of the evidence, that Ueda is prior art to the challenged claims.” slip op. at 24

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundDecided for petitioner

    “In general, we disagree with Patent Owner that, in showing a reason to incorporate the SIP Standard’s teachings about proxy servers, Petitioner must necessarily show that Ueda’s system was deficient or inferior. A patent challenger “does not need to show that there was a known problem with the prior art system in order to articulate the required rational underpinning for the proposed combination.” Unwired Planet, LLC v. Google Inc., 841 F.3d 995, 1002–03 (Fed. Cir. 2016). Also, “when a patent claims a structure already known in the prior art that is altered by the mere substitution of one element for another known in the field, the combination must do more than yield a predictable result.” KSR, 550 U.S. at 416. For this reason and the specific reasons discussed below, we find Patent Owner’s arguments unpersuasive. The evidence of record suggests that it would have been within the ordinary skill in the art to modify Ueda’s system by replacing direct communication between content-providing device 150 and servers 191 or 192 with an indirect connection in the form of proxy servers using well-known, predictable techniques as described in the SIP Standard.” slip op. at 33

  Patent outcomesUS 9,769,427 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 9,769,427
• Peloton Interactive, Inc. v. NEC CorporationAll claims unpatentable
  PTAB · Feb 5, 2025 · IPR2023-01240 · APJ Christopher L Ogden · IPR · Final written decision

  Claims 1–9, 14–18, 20, 22, 32, and 34–36 are unpatentable as obvious over Ueda, the SIP Standard, and the SDP Standard, with dependent claims 2, 3, 15, and 17 also relying on Cohee.

  RulingsFinal written decision

  • Novelty / Anticipation (§102) › Priority / effective filing date / continuation supportReference is prior artPriority date, deniedDecided for petitioner

    “Taniguchi’s activities during the relevant time frame, we find that Patent Owner has not produced sufficient corroborating evidence to show that Mr. Taniguchi’s work on reducing to practice the claimed invention was reasonably continuous during the critical period between September 19, 2008 (the filing date of Ueda), and November 18, 2008 (the filing date of the Japanese patent application). Although there is corroborating evidence of diligence beginning on November 6, 2008, when Mr. Taniguchi transmitted a draft application to the Baba law firm, there is no evidence of any diligence prior to that date, other than Mr. Taniguchi’s own testimony. We do not agree with Patent Owner that the evidence of Mr. Taniguchi’s other activities for NEC, or research relating to IPTV, corroborate Mr. Taniguchi’s reduction to practice of the claimed invention. Although these activities may have something to do with the general subject matter of IPTV, Patent Owner has not shown any nexus between these activities and the challenged claims. See Naber v. Cricchi, 567 F.2d at 385 (“It is well settled that, to satisfy the ‘reasonable diligence’ requirement . . . , the work relied on must ordinarily be directly related to reduction to practice of the invention . . . in issue.” (citing cases)). Although Mr. Taniguchi doubtlessly spent substantial time preparing the application he completed on November 6, 2008 (see Ex. 2017), there is no corroborating evidence that this work was reasonably continuous during the critical period. As far as the corroborating evidence attests, Mr. Taniguchi could have done no work on the draft until early November, or he could have worked on the draft briefly in August and put it aside until early November. Considering all the evidence as to Mr. Taniguchi’s activities, we find that Patent Owner has not met its burden of producing corroborating evidence that the named inventors of the ’427 patent exercised reasonably continuous diligence during the critical period when Ueda was filed until the” slip op. at 23

  • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundDecided for petitioner

    “In general, we disagree with Patent Owner that, in showing a reason to incorporate the SIP Standard’s teachings about proxy servers, Petitioner must necessarily show that Ueda’s system was deficient or inferior. A patent challenger “does not need to show that there was a known problem with the prior art system in order to articulate the required rational underpinning for the proposed combination.” Unwired Planet, LLC v. Google Inc., 841 F.3d 995, 1002–03 (Fed. Cir. 2016). Also, “when a patent claims a structure already known in the prior art that is altered by the mere substitution of one element for another known in the field, the combination must do more than yield a predictable result.” KSR, 550 U.S. at 416. For this reason and the specific reasons discussed below, we find Patent Owner’s arguments unpersuasive. The evidence of record suggests that it would have been within the ordinary skill in the art to modify Ueda’s system by replacing direct communication between content-providing device 150 and servers 191 or 192 with an indirect connection in the form of proxy servers using well-known, predictable techniques as described in the SIP Standard.” slip op. at 32

  • Obviousness (§103) › Motivation to combine / reasonable expectation of success › Teaching awayTeaching away not foundDecided for petitioner

    “(4) Whether Ueda Teaches Away from Providing Play-list Information While Establishing a Connection Finally, Patent Owner argues that Ueda teaches away from providing “play-list information” at the same time as establishing a connection, because Ueda teaches successfully completing user authentication before transmitting the playlist. PO Resp. 52–53 (citing Ex. 1003 ¶¶ 56, 365, Fig. 25; Ex. 2001 ¶ 99). According to Patent Owner, “Petitioner’s argument fails to reconcile[] this ordering of Ueda, which would prevent implementation of the proposed combination with the SDP Standard, in which the playlist is transmitted as part of the ‘Session Initiation.’” Id. at 53 (citing Ex. 2001 ¶ 100). In its Reply, Petitioner argues that limitation 1g “does not require transmitting ‘play-list information’ ‘at the same time’ as authentication, but at a same time ‘the one or more connection control servers executes a process for guaranteeing a communication bandwidth . . . as a process for establishing the connection.’” Pet. Reply 23. Petitioner also argues that the ’427 patent also describes an authentication step before transmitting the play-list information. Id. (citing Ex. 1001, 12:56–13:13, 13:50–58, Fig. 4). We find Petitioner’s arguments persuasive, and we disagree with Patent Owner that claim 1 restricts the timing of user authentication. As Petitioner notes, user authentication occurs in the ’427 patent before the process of establishing a connection as depicted in Figure 5. See Ex. 1001, 12:36–55, Fig. 4 (user authentication occurs when user equipment 2 is powered-up); id. at 13:50–58 (SIP message A501, at the beginning of Figure 5, includes “user authentication success information”). But we find nothing in the claim language, itself, that requires any particular timing for authentication. Nor do we understand Petitioner’s motivation-to-combine argument to hinge on the timing of authentication. Thus, Ueda does not “criticize, discredit, or otherwise discourage” the claimed invention. In re Fulton, 391 F.3d 1195, 1201 (Fed. Cir. 2004).” slip op. at 58

  • Obviousness (§103) › Motivation to combine / reasonable expectation of success › HindsightDecided for petitioner

    “We find Petitioner’s arguments persuasive. Petitioner does not rely solely on the SDP Standard for teaching the sending of play-list information, but also relies on Ueda, which discloses sending a playlist including an identification of main content, commercial content, and an output sequence, as we discuss in more detail below in the context of limitation 1h. See infra Section III.D.3(g). Petitioner relies on the SIP and SDP Standards for teaching that Ueda’s playlist, as with other data describing a session, may be formatted and transmitted as payload within a standard SIP message, for example using SDP fields. Based on the evidence of record, we find it persuasive that a person of ordinary skill in the art would have recognized SDP as a known way to format play-list information, since SDP has specific fields to convey the features of a playlist such as metadata and links to the content. See Pet. 50–52. Petitioner’s arguments are not based on improper hindsight bias. Although Petitioner argues that the SDP Standard “can” or “could” be used to format Ueda’s playlist, the evidence suggests that doing so would merely be “[t]he combination of familiar elements according to known methods,” and that kind of combination “is likely to be obvious when it does no more than yield predictable results.” KSR, 550 U.S. at 416. The evidence shows that is the case here. As such, the Petition relies on the predictable combination of the prior art according to known methods and on various motivations to combine the references (see Supra Sections III.D.1–2), not on the ’427 patent itself, for teaching the combination.” slip op. at 57

  Patent outcomesUS 9,769,427 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 9,769,427

Holdings, summaries, rulings, issues, outcomes, winners and claim constructions shown for a decision were generated by a large language model reading the opinion. They are a guide to the decision, not the decision. Confirm every one against the court's own text before relying on it. Outcomes read from the patent owner’s side. Party names are extracted from the decision and are missing on about 900 short Director denials and scans, which carry the trial number instead.