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  • PTAB · Aug 31, 2026 · IPR2025-00260 · APJ Kevin W Cherry · IPR · Final written decision

    The Board held all challenged original claims unpatentable as obvious and denied the contingent motion to amend substitute claims 30–49.

    RulingsFinal written decision
    • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundUnpatentable

      “would have been motivated to combine the teachings of the prior art references to achieve the claimed invention, and that the skilled artisan would have had a reasonable expectation of success in doing so.’” Intelligent Bio-Sys., Inc. v. Illumina Cambridge Ltd., 821 F.3d 1359, 1367–68 (Fed. Cir. 2016); see KSR, 550 U.S. at 418. Further, an assertion of obviousness “cannot be sustained by mere conclusory statements; instead, there must be some articulated reasoning with some rational underpinning to support the legal conclusion of obviousness.” KSR, 550 U.S. at 418; In re NuVasive, Inc., 842 F.3d 1376, 1383 (Fed. Cir. 2016) (a finding of a motivation to combine “must be supported by a ‘reasoned explanation’”).” slip op. at 10

    • Obviousness (§103) › Objective indicia / secondary considerationsObjective indicia no nexusObjective indicia outweighedDecided for petitioner

      “7. Summary As discussed above, we find that Patent Owner has failed to show a” slip op. at 35

    • PTAB / AIA Trials › Motions to amend / substitute claimsMotion to amend, deniedDenied

      “Motion to Amend meets the statutory and regulatory requirements set forth in 35 U.S.C. § 316(d) and 37 C.F.R. § 42.121 for claims 30 and 32–49. We further find that Patent Owner has not met the statutory and regulatory requirements for proposed claim 31. Accordingly, we address below whether any of the proposed substitute claims have been shown to be unpatentable.” slip op. at 86

    • Disclosure Requirements (§112) › Written description (Ariad)Written description inadequateDenied
    Patent outcomesUS 8,604,678 unpatentable
    § 103 obviousness§ 112 disclosurecites Phillips · Graham
    Patents in suitUS 8,604,678
  • PTAB · Aug 31, 2026 · IPR2025-00260 · APJ Kevin W Cherry · IPR · Final written decision

    The Board held all challenged claims 1–3, 6, 7, 9–14, 16–21, 25, 26, and 29 unpatentable as obvious and granted the motion to amend for substitute claims 30–49.

    RulingsFinal written decision
    • Expert testimonyPetitioner expert creditedDecided for petitioner

      “E. Credibility of Dr. Doolittle Patent Owner argues that we should give no weight to Dr. Doolittle’s testimony because, “[o]n cross examination, Prof. Doolittle repeatedly contradicted himself, dodged questions, and tried to shoehorn new and nonresponsive opinions into his answers to Patent Owner’s questions.” PO Resp. 25. Patent Owner raises two major complaints about Dr. Doolittle. First, Patent Owner argues that he took inconsistent positions by asserting in these IPR proceedings that the claims were entitled to their plain and ordinary meaning, while in the parallel district court proceeding, asserting that certain claim terms were indefinite. Id. at 26–28. Second, Patent Owner argues that Dr. Doolittle “repeatedly dodged questions and tried to shoehorn new and nonresponsive opinions into his answers to Patent Owner’s questions,” and that “[d]uring cross examination Patent Owner was forced to object to Prof. Doolittle’s nonresponsive answers no less than eighteen times.” Id. at 28. We strongly disagree with Patent Owner’s characterization of Dr. Doolittle’s testimony. We have reviewed the entirety of both of Dr. Doolittle’s depositions. We are impressed with his forthrightness, candor, and good humor in the face of Patent Owner’s counsel’s aggressive questioning. Contrary to Patent Owner’s assertions, we find that his testimony was well-reasoned, forthright, honest, and entitled to significant weight. Dr. Doolittle explained the different claim construction positions We also strongly disagree that Dr. Doolittle’s answers were nonresponsive or “evasive” as Patent Owner argues. Patent Owner’s numerous attempts to “strike” portions of his testimony belie Dr. Doolittle’s efforts to honestly and in good faith respond to Patent Owner’s counsel’s questions. Ex. 2025, 22:10–23:15, 25:9–26:14, 30:14–22, 40:3-9, 58:12–59:1, 60:18–61:13, 65:1–10, 83:15–84:16, 92:15–95:20, 96:18–99:9, 102:22–106:16, 135:3–136:22. An answer is not “non-responsive” simply because it does not conform to the conclusion you want or undermines the logic underlying your questioning. Dr. Doolittle explained his answers and addressed the issues Patent Owner asked about. Accordingly, we decline Patent Owner’s invitation to give Dr. Doolittle’s testimony no weight. Instead, we assess Dr. Doolittle’s testimony on a case-by-case basis as discussed below.” slip op. at 21

    • Skill levelOther

      “B. Level of Ordinary Skill in the Art We consider the asserted ground of unpatentability in view of the understanding of a person of ordinary skill in the art (“POSITA” or “POSA”). In assessing the level of ordinary skill in the art, various factors may be considered, including the “type of problems encountered in the art; prior art solutions to those problems; rapidity with which innovations are made; sophistication of the technology; and educational level of active workers in the field.” In re GPAC Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995) (quoting Custom Accessories, Inc. v. Jeffrey-Allan Indus., Inc., 807 F.2d Relying on the declaration testimony of its expert, Dr. Doolittle, Petitioner contends that an ordinarily skilled artisan for the ’678 patent “would have had an undergraduate degree (i.e., B.S., B.S.E. or the equivalent) in electrical engineering, materials science, physics, or a similar discipline” and “would also have one to two years of experience in the field of LED packaging design.” Pet. 5–6. Petitioner additionally contends that “[m]ore education could substitute for experience, and vice versa.” Id. Petitioner further contends that “[t]his person would have been capable of understanding and applying the teachings of the ’678 patent and the prior-art references discussed herein,” and “[m]oreover, the prior art reflects the level of skill at the time of the claimed invention.” Id. (citing Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001); Ex. 1102 ¶¶ 38–42). Patent Owner states that “solely for the purposes of this proceeding, Patent Owner and its technical expert employ the same level of skill in the art as Petitioners.” PO Resp. 24–25. Thus, we adopt Petitioner’s articulation of the level of ordinary skill in the art, which is consistent with the ’678 patent and the asserted prior art, and we apply it in our obviousness analysis below.” slip op. at 10

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

      “lower wavelength might offer, there were other drawbacks that a person of ordinary skill would have to balance. But “a given course of action often has simultaneous advantages and disadvantages, and this does not necessarily obviate motivation to combine.” Medichem, S.A. v. Rolabo, S.L., 437 F.3d 1157, 1165 (Fed. Cir. 2006). Indeed, Petitioner has shown several references—including, Basin-2005, Shimizu, and Stokes—that made this tradeoff. Moreover, “[o]bviousness does not require absolute predictability of success. . . . [A]ll that is required is a reasonable expectation of success.” In re O’Farrell, 853 F.2d 894, 903–04 (Fed. Cir. 1988). We find that the prior art of record demonstrates that a person of ordinary skill in the art at the time of the invention would have such an expectation in making the combination of Basin-2007 and Basin-2005. Accordingly, we find that Petitioner has shown by a preponderance of the evidence that there would have been motivation to combine Basin-2007 and Basin-2005 with a reasonable expectation of success. 4. Summary We have reviewed Petitioner’s contentions regarding claims 1–3, 6, 9, 10, 16–21, and 25 (Pet. 19–53), and find that Petitioner has shown by a preponderance of the evidence that Basin-2007 and Basin-2005 teach the limitations of those claims, and that there would have been a motivation to combine the references in the manner suggested with a reasonable considerations does not outweigh the strong showing of obviousness. Accordingly, we find that Petitioner has shown by a preponderance of the evidence that claims 1–3, 6, 9, 10, 16–21, and 25 would have been obvious over Basin-2007 and Basin-2005.” slip op. at 41

    • Obviousness (§103) › Objective indicia / secondary considerationsObjective indicia no nexusDecided for petitioner

      “1. Nexus In order for secondary considerations to be awarded “substantial” slip op. at 22

    Patent outcomesUS 8,604,678 unpatentable
    § 103 obviousness§ 112 disclosurecites Phillips · Graham
    Patents in suitUS 8,604,678
  • PTAB · Aug 31, 2026 · IPR2024-01357 · APJ Kevin W Cherry · IPR · Final written decision

    The Board held all challenged original claims unpatentable as obvious and granted the contingent motion to amend for substitute claims 30 and 32–49; substitute claim 31 was denied.

    RulingsFinal written decision
    • Expert testimonyPetitioner expert creditedDecided for petitioner

      “E. Credibility of Dr. Doolittle Patent Owner argues that we should give no weight to Dr. Doolittle’s testimony because, “[o]n cross examination, Prof. Doolittle repeatedly contradicted himself, dodged questions, and tried to shoehorn new and nonresponsive opinions into his answers to Patent Owner’s questions.” PO Resp. 25. Patent Owner raises two major complaints about Dr. Doolittle. First, Patent Owner argues that he took inconsistent positions by asserting in these IPR proceedings that the claims were entitled to their plain and ordinary meaning, while in the parallel district court proceeding, asserting that certain claim terms were indefinite. Id. at 26–28. Second, Patent Owner argues that Dr. Doolittle “repeatedly dodged questions and tried to shoehorn new and nonresponsive opinions into his answers to Patent Owner’s questions,” and that “[d]uring cross examination Patent Owner was forced to object to Prof. Doolittle’s nonresponsive answers no less than eighteen times.” Id. at 28. We strongly disagree with Patent Owner’s characterization of Dr. Doolittle’s testimony. We have reviewed the entirety of both of Dr. Doolittle’s depositions. We are impressed with his forthrightness, candor, and good humor in the face of Patent Owner’s counsel’s aggressive questioning. Contrary to Patent Owner’s assertions, we find that his testimony was well-reasoned, forthright, honest, and entitled to significant weight. Dr. Doolittle explained the different claim construction positions We also strongly disagree that Dr. Doolittle’s answers were nonresponsive or “evasive” as Patent Owner argues. Patent Owner’s numerous attempts to “strike” portions of his testimony belie Dr. Doolittle’s efforts to honestly and in good faith respond to Patent Owner’s counsel’s questions. Ex. 2025, 22:10–23:15, 25:9–26:14, 30:14–22, 40:3-9, 58:12–59:1, 60:18–61:13, 65:1–10, 83:15–84:16, 92:15–95:20, 96:18–99:9, 102:22–106:16, 135:3–136:22. An answer is not “non-responsive” simply because it does not conform to the conclusion you want or undermines the logic underlying your questioning. Dr. Doolittle explained his answers and addressed the issues Patent Owner asked about. Accordingly, we decline Patent Owner’s invitation to give Dr. Doolittle’s testimony no weight. Instead, we assess Dr. Doolittle’s testimony on a case-by-case basis as discussed below.” slip op. at 21

    • Skill levelOther

      “B. Level of Ordinary Skill in the Art We consider the asserted ground of unpatentability in view of the” slip op. at 10

    • Obviousness (§103) › Motivation to combine / reasonable expectation of successUnpatentableMotivation foundUnpatentable

      “lower wavelength might offer, there were other drawbacks that a person of ordinary skill would have to balance. But “a given course of action often has simultaneous advantages and disadvantages, and this does not necessarily obviate motivation to combine.” Medichem, S.A. v. Rolabo, S.L., 437 F.3d 1157, 1165 (Fed. Cir. 2006). Indeed, Petitioner has shown several references—including, Basin-2005, Shimizu, and Stokes—that made this tradeoff. Moreover, “[o]bviousness does not require absolute predictability of success. . . . [A]ll that is required is a reasonable expectation of success.” In re O’Farrell, 853 F.2d 894, 903–04 (Fed. Cir. 1988). We find that the prior art of record demonstrates that a person of ordinary skill in the art at the time of the invention would have such an expectation in making the combination of Basin-2007 and Basin-2005. Accordingly, we find that Petitioner has shown by a preponderance of the evidence that there would have been motivation to combine Basin-2007 and Basin-2005 with a reasonable expectation of success. 4. Summary We have reviewed Petitioner’s contentions regarding claims 1–3, 6, 9, 10, 16–21, and 25 (Pet. 19–53), and find that Petitioner has shown by a preponderance of the evidence that Basin-2007 and Basin-2005 teach the limitations of those claims, and that there would have been a motivation to combine the references in the manner suggested with a reasonable considerations does not outweigh the strong showing of obviousness. Accordingly, we find that Petitioner has shown by a preponderance of the evidence that claims 1–3, 6, 9, 10, 16–21, and 25 would have been obvious over Basin-2007 and Basin-2005.” slip op. at 41

    • Obviousness (§103) › Objective indicia / secondary considerations › NexusObjective indicia no nexusDecided for petitioner

      “1. Nexus In order for secondary considerations to be awarded “substantial” slip op. at 22

    Patent outcomesUS 8,604,678 unpatentable
    § 103 obviousness§ 112 disclosurecites Phillips · Graham
    Patents in suitUS 8,604,678
  • PTAB · Aug 28, 2026 · IPR2024-01357 · APJ Kevin W Cherry · IPR · Final written decision

    Claims 1–3, 6, 7, 9, 10, 16–21, 25, 26, and 29 are unpatentable; substitute claims 30–49 were not reached.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “B. Level of Ordinary Skill in the Art We consider the asserted ground of unpatentability in view of the” slip op. at 10

    • Expert testimonyPetitioner expert creditedDecided for petitioner

      “E. Credibility of Dr. Doolittle Patent Owner argues that we should give no weight to Dr. Doolittle’s testimony because, “[o]n cross examination, Prof. Doolittle repeatedly contradicted himself, dodged questions, and tried to shoehorn new and nonresponsive opinions into his answers to Patent Owner’s questions.” PO Resp. 25. Patent Owner raises two major complaints about Dr. Doolittle. First, Patent Owner argues that he took inconsistent positions by asserting in these IPR proceedings that the claims were entitled to their plain and ordinary meaning, while in the parallel district court proceeding, asserting that certain claim terms were indefinite. Id. at 26–28. Second, Patent Owner argues that Dr. Doolittle “repeatedly dodged questions and tried to shoehorn new and nonresponsive opinions into his answers to Patent Owner’s questions,” and that “[d]uring cross examination Patent Owner was forced to object to Prof. Doolittle’s nonresponsive answers no less than eighteen times.” Id. at 28. We strongly disagree with Patent Owner’s characterization of Dr. Doolittle’s testimony. We have reviewed the entirety of both of Dr. Doolittle’s depositions. We are impressed with his forthrightness, candor, and good humor in the face of Patent Owner’s counsel’s aggressive questioning. Contrary to Patent Owner’s assertions, we find that his testimony was well-reasoned, forthright, honest, and entitled to significant weight. Dr. Doolittle explained the different claim construction positions We also strongly disagree that Dr. Doolittle’s answers were nonresponsive or “evasive” as Patent Owner argues. Patent Owner’s numerous attempts to “strike” portions of his testimony belie Dr. Doolittle’s efforts to honestly and in good faith respond to Patent Owner’s counsel’s questions. Ex. 2025, 22:10–23:15, 25:9–26:14, 30:14–22, 40:3-9, 58:12–59:1, 60:18–61:13, 65:1–10, 83:15–84:16, 92:15–95:20, 96:18–99:9, 102:22–106:16, 135:3–136:22. An answer is not “non-responsive” simply because it does not conform to the conclusion you want or undermines the logic underlying your questioning. Dr. Doolittle explained his answers and addressed the issues Patent Owner asked about. Accordingly, we decline Patent Owner’s invitation to give Dr. Doolittle’s testimony no weight. Instead, we assess Dr. Doolittle’s testimony on a case-by-case basis as discussed below.” slip op. at 21

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

      “lower wavelength might offer, there were other drawbacks that a person of ordinary skill would have to balance. But “a given course of action often has simultaneous advantages and disadvantages, and this does not necessarily obviate motivation to combine.” Medichem, S.A. v. Rolabo, S.L., 437 F.3d 1157, 1165 (Fed. Cir. 2006). Indeed, Petitioner has shown several references—including, Basin-2005, Shimizu, and Stokes—that made this tradeoff. Moreover, “[o]bviousness does not require absolute predictability of success. . . . [A]ll that is required is a reasonable expectation of success.” In re O’Farrell, 853 F.2d 894, 903–04 (Fed. Cir. 1988). We find that the prior art of record demonstrates that a person of ordinary skill in the art at the time of the invention would have such an expectation in making the combination of Basin-2007 and Basin-2005. Accordingly, we find that Petitioner has shown by a preponderance of the evidence that there would have been motivation to combine Basin-2007 and Basin-2005 with a reasonable expectation of success.” slip op. at 41

    • Obviousness (§103) › Objective indicia / secondary considerationsDecided for petitioner

      “7. Summary As discussed above, we find that Patent Owner has failed to show a” slip op. at 35

    Patent outcomesUS 8,604,678 unpatentable
    § 103 obviousness§ 112 disclosurecites Phillips · Graham
    Patents in suitUS 8,604,678
  • PTAB · Jul 27, 2026 · IPR2025-00308 · APJ Aaron W Moore · IPR · Final written decision

    The Board held claim 1 unpatentable as obvious over Darnell and Kim, and over Dasgupta and Darnell; Judge Moore dissented as to the Dasgupta and Kim ground.

    RulingsFinal written decision
    • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Decided for patent owner

      “2. “Real Time” – The Parties’ Positions In the preliminary phase of this proceeding, the principal claim term” slip op. at 9

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

      “1. Rationale to Combine Darnell and Kim Petitioner contends that “Darnell and Kim address similar problems of” slip op. at 35

    • Expert testimonyOther

      “form of storage or minimal time delay, and Patent Owner concedes as much in this proceeding. See, e.g., Ex. 1082, 125:19–22, 126:3–10; Tr. 41:26– 42:14, 53:20–25. Accordingly, the mere fact that Darnell’s system may aggregate content feeds or content items on a server, merge content, store content, and then deliver content to a user interface, does not preclude it from being done in “real time” as that term would be understood by a person of ordinary skill in the art reading the ’654 patent in its entirety.” slip op. at 48

    Patent outcomesUS 10,334,068 unpatentable
    Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
    Patents in suitUS 10,334,068
  • PTAB · Jul 27, 2026 · IPR2025-00307 · APJ Kevin C Trock · IPR · Final written decision

    Claims 1–18 are unpatentable: the majority finds them obvious over the asserted prior-art combinations, including Darnell and Kim and Dasgupta-based combinations.

    RulingsFinal written decision
    • BurdenFwd all claims unpatentableUnpatentable

      “§ 6. This Final Written Decision issues pursuant to 35 U.S.C. § 318(a) (2018) and 37 C.F.R. § 42.73 (2019). For the reasons discussed herein, we determine that Petitioner, Twitch Interactive, Inc., has shown by a preponderance of the evidence that claims 1–18 (the “challenged claims”) of U.S. Patent No. 9,729,658 B2 (Ex. 1001, “the ’658 patent”) are unpatentable. See 35 U.S.C. § 316(e) (2018); 37 C.F.R. § 42.1(d) (2019).” slip op. at 2

    • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Plain and ordinary meaningDecided for petitioner

      “2. “Real Time” – The Parties’ Positions In the preliminary phase of this proceeding, the principal claim term” slip op. at 10

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

      “1. Rationale to Combine Darnell and Kim Petitioner contends that “Darnell and Kim address similar problems of” slip op. at 37

    Patent outcomesUS 9,729,658 unpatentable
    Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
    Patents in suitUS 9,729,658
  • PTAB · Jun 26, 2026 · IPR2025-00220 · APJ Kristen L Droesch · IPR · Final written decision

    Claims 1–18 are unpatentable under § 103 over Wallen and Berggren because the combined teachings render the claimed subject matter obvious.

    RulingsFinal written decision
    • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITAPlain and ordinary meaningDecided for petitioner

      “We agree that Patent Owner’s proposed claim construction is wholly unsupported by, and inconsistent with, the language of independent claims 1, 7, and 13, and the aims of the ’670 Patent Specification. See Ex. 1001, 2:3– 25, 9:32–10:5, 12:51–67, 18:54–19:6, 19:26–42, 20:12–26. Moreover, the cited extrinsic evidence––testimony by Patent Owner’s expert Dr. Lomp–– does not support Patent Owner’s proposed construction because it is internally inconsistent and also undermined by Dr. Lomp’s inconsistent deposition testimony. See Ex. 1036, 11:6–17, 12:9–12; Ex. 2010 ¶¶ 40, 48. Similarly, the extrinsic evidence cited by Petitioner (e.g., Exs. 1037, 1038, 2009) undermines Patent Owner’s position emphasizing the intended recipient devices of SIB1. In summary, we decline to adopt Patent Owner’s proposed claim construction because it is unsupported by the claim language, the ’670 Patent Specification, and the cited extrinsic evidence. with the ordinary and customary meaning which does not include limiting SIB1 to an ordinary legacy SIB and excluding MTC specific SIBs or SIBs intended for MTC devices. In addition, we need not construe explicitly any other claim term or phrase. See, e.g., Nidec Motor Corp. 868 F.3d at 1017 (“[W]e need only construe 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

    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “would have had a bachelor’s degree from an accredited program in electrical engineering, computer engineering, computer science, or equivalent training, and at least two years of professional experience relating to wireless communication technology” and “[l]ack of professional experience can be remedied by additional education, and vice versa.” Pet. 15–16 (citing Ex. 1003 ¶¶ 19–21). Patent Owner does not dispute Petitioner’s definition. See generally PO Resp. We find that “at least” in Petitioner’s formulation of the level of skill in the art is vague and open-ended. Otherwise, we adopt Petitioner’s definition of a person of ordinary skill in the art because it is consistent with the level of skill reflected by the ’670 Patent Specification and the prior art of record. slip op. at 14

    • Disclosure Requirements (§112) › Written description (Ariad)Not entitled to earlier dateDecided for petitioner

      “filing date. As explained above, the burden of production shifted to Patent Owner to show that Wallen is not prior art because the ’670 Patent is entitled to the earlier January 20, 2012, filing date of foreign priority application GB1201000. See Dynamic Drinkware, 800 F.3d at 1379–1380. For a claim in a later-filed application to be entitled to the filing date of an earlier application, the earlier application must provide written description support for the claimed subject matter. Anascape, Ltd. v. Nintendo of Am. Inc., 601 F.3d 1333, 1337 (Fed. Cir. 2010). To satisfy the written description requirement, “a prior application itself must describe an invention, and do so in sufficient detail that one skilled in the art can clearly conclude that the inventor invented the claimed invention as of the filing date sought.” Lockwood v. Am. Airlines, Inc., 107 F.3d 1565, 1572 (Fed. Cir. 1997); see also VasCath v. Mahurkar, 935 F.2d 1555, 1563–64 (Fed. Cir. 1991) (“[T]he applicant must . . . convey with reasonable clarity to those skilled in the art that, as of the filing date sought, he or she was in possession of the invention . . . now claimed.” (emphasis omitted)), Ariad Pharm. Inc. v. Eli Lilly & Co., 598 F.3d 1336, 1352 (Fed. Cir. 2010) (en banc) (“[I]t is the specification itself that must demonstrate possession.”). Patent Owner’s arguments fail to meet this burden of production because, aside from addressing a system information block 1, Patent Owner’s arguments do not substantively address how GB1201000 provides written description support for any other limitations of the claimed invention. See PO Resp. 43, 57. Accordingly, Patent Owner has not met its burden of production in coming forward with evidence or argument to show possession of the claimed invention in foreign priority application GB1201000, the burden of production did not shift back to Petitioner, and,” slip op. at 18

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

      “primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH) including a master information block (MIB).” See Pet. 41–42 (citing Ex. 1003 ¶¶ 70–75; Ex. 1005 ¶¶ 76, 77, 83–84). Petitioner implicitly acknowledges that Wallen does not expressly disclose a physical broadcast channel (PBCH), but relies on Berggren for confirming that the LTE standard specifies that a PBCH carries the MIB. See Pet. 42–43 (citing Ex. 1003 ¶ 74; Ex. 1007 ¶¶ 73–75). According to Petitioner, “a person of ordinary skill in the art would have been motivated to transmit Wallen’s MIB using a PBCH as taught by Berggren.” Pet. 43 (citing Pet. 33–38). In particular, Petitioner asserts that a person of ordinary skill in the art “would have been motivated for Wallen’s LTE system to utilize the LTE standard implementation details taught by Berggren,” and “it would have been predictable and beneficial for Wallen’s user equipment to receive the MIB in the [PBCH], as was standard in LTE.” Pet. 34 (citing Ex. 1003 ¶ 58), 37 (citing Ex. 1003 ¶ 63). According to Petitioner, “the combination is nothing more than ‘the predictable use of prior art elements according to their established functions.’” Pet. 38 (citing KSR, 550 U.S. at 417). Based on the entire record developed during trial, we are persuaded by a preponderance of the evidence that Petitioner provides sufficient articulated reasoning with rational underpinning to support the conclusion that it would have been obvious to a person of ordinary skill in the art to modify Wallen’s broadcast MIB with Berggren’s teachings of using a PBCH for transmitting broadcast MIBs. See Pet. 33–38; KSR, 550 U.S. at 418.” slip op. at 24

    Patent outcomesUS 11,206,670 unpatentable
    Claim construction§ 103 obviousness§ 112 disclosurecites Phillips · KSR · Graham
    Patents in suitUS 11,206,670
  • PTAB · Jun 23, 2026 · IPR2025-00219 · APJ Frederick C Laney · IPR · Final written decision

    Claims 11–22 were not shown unpatentable under any § 103 ground because the prior art did not teach or suggest receiving the claimed resource allocation and multi-level TPC command on one physical channel.

    RulingsFinal written decision
    • BurdenNot shown unpatentable

      “onset to show with particularity why the patent it challenges is unpatentable.” Harmonic Inc. v. Avid Tech., Inc., 815 F.3d 1356, 1363 (Fed. Cir. 2016) (citing 35 U.S.C. § 312(a)(3) (requiring inter partes review petitions to identify “with particularity . . . the evidence that supports the grounds for the challenge to each claim”)). This burden of persuasion never shifts to the patent owner. See Dynamic Drinkware, LLC v. Nat’l Graphics, Inc., 800 F.3d 1375, 1378 (Fed. Cir. 2015). Moreover, a petitioner should 1 The Leahy-Smith America Invents Act (“AIA”), Pub. L. No. 112-29, 125 Stat. 284 (2011), amended 35 U.S.C. § 103, effective March 16, 2013. Because the application from which the ’153 patent issued claims priority to an application filed before this date, the pre-AIA version of § 103 applies. not “place the burden on [the Board] to sift through information presented by the Petitioners, determine where each element [of the challenged claims] is found in [the cited references], and identify any differences between the claimed subject matter and the teachings of [the cited references.]” Google Inc. v. EveryMD.com LLC, IPR2014-00347, Paper 9 at 25 (PTAB May 22, 2014).” slip op. at 5

    • Expert testimonyPatent owner expert creditedPetitioner expert discountedDecided for patent owner

      “The second and third asserted benefits—reduced complexity and reduced latency—rest on the declaration of Dr. Kotzin (Ex. 1003 ¶ 64) rather than on any disclosure of Andersson or Khan. We accord that testimony little weight on this point because it asserts the benefits in conclusory terms without explaining why they would result from inserting a scheduling grant into Andersson’s undefined “other bits,” as distinct from Khan’s separate-slot design.” slip op. at 20

    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “A. Level of Ordinary Skill in the Art Petitioner asserts that ordinarily skilled artisans “would have a bachelor’s degree in electrical engineering, computer engineering, computer science, or equivalent training, and approximately two years of experience working in the field of wireless communication systems or design of similar communication systems.” Pet. 14. Petitioner’s proposed definition, which Patent Owner does not dispute, appears reasonable and consistent with the asserted prior art and the ’500 Patent. Therefore, we adopt it as the ordinary level of skill of an artisan in the field of the patented technology for our analysis below.” slip op. at 7

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

      “Patent Owner offers a proposed construction for the recited “single physical channel” found in limitation 11.2 and “an accumulation of TPC commands” found in independent claims 12 and 18. PO Resp. 9–17. Petitioner likewise addresses the scope of an accumulation of TPC commands, but Petitioner does not contest directly Patent Owner’s proposed construction for “single physical channel.” Pet. Reply 2–7. We determine, however, that no express construction of any claim term is necessary to resolve the dispute between the parties. Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (“[W]e need only construe 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 8

    Patent outcomesUS 9,706,500 not shown unpatentable
    Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
    Patents in suitUS 9,706,500
  • PTAB · Jun 22, 2026 · IPR2025-00217 · APJ Frederick C Laney · IPR · Final written decision

    The Board held claims 1–5, 10–15, and 20 not unpatentable under four §103 grounds because the petitioner did not establish the claimed enabled-accumulation indication or single-channel combination.

    RulingsFinal written decision
    • BurdenNot shown unpatentable

      “onset to show with particularity why the patent it challenges is 1 The Leahy-Smith America Invents Act (“AIA”), Pub. L. No. 112-29, 125 Stat. 284 (2011), amended 35 U.S.C. § 103, effective March 16, 2013. Because the application from which the ’153 patent issued claims priority to an application filed before this date, the pre-AIA version of § 103 applies. 2 US 6,334,047 B1, iss. Dec. 25, 2001 (Ex. 1009). 3 US 2001/0036238 A1, pub. Nov. 1, 2001 (Ex. 1010) 4 US 2004/0190485 A1, pub. Sept. 30, 2004 (Ex. 1005). 5 US 2004/0077370 A1, pub. Apr. 22, 2004 (Ex. 1008). 6 US 6,600,772 B1, iss. July 29, 2003 (Ex. 1004). 7 US 6,529,741 B1, iss. Mar. 4, 2003 (Ex. 1007). unpatentable.” Harmonic Inc. v. Avid Tech., Inc., 815 F.3d 1356, 1363 (Fed. Cir. 2016) (citing 35 U.S.C. § 312(a)(3) (requiring inter partes review petitions to identify “with particularity . . . the evidence that supports the grounds for the challenge to each claim”)). This burden of persuasion never shifts to the patent owner. See Dynamic Drinkware, LLC v. Nat’l Graphics, Inc., 800 F.3d 1375, 1378 (Fed. Cir. 2015). Moreover, a petitioner should not “place the burden on [the Board] to sift through information presented by the Petitioners, determine where each element [of the challenged claims] is found in [the cited references], and identify any differences between the claimed subject matter and the teachings of [the cited references].” Google Inc. v. EveryMD.com LLC, IPR2014-00347, Paper 9 at 25 (PTAB May 22, 2014).” slip op. at 5

    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “A. Level of Ordinary Skill in the Art Petitioner asserts that ordinarily skilled artisans “would have a bachelor’s degree in electrical engineering, computer engineering, computer science, or equivalent training, and approximately two years of experience working in the field of wireless communication systems or design of similar communication systems.” Pet. 15. Petitioner’s proposed definition, which Patent Owner does not dispute, appears reasonable and consistent with the asserted prior art and the ’153 patent. Therefore, we adopt it as the ordinary level of skill of an artisan in the field of the patented technology for our analysis below.” slip op. at 7

    • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Term construed board ownDecided for patent owner

      “apparent agreement between the parties: “TPC command accumulation” refers to a process that collects and uses TPC commands from a network device to cumulatively affect transmission power. And having studied the intrinsic record of the ’153 patent, we are in accord. But, we decline to further limit the construction of “TPC command accumulation” in the manner proposed by either party––i.e., (1) each TPC command adjustment must be summed to cumulatively affect transmission power (as proposed by Petitioner) or (2) a TPC command value must be added to an integrator. Although both parties are able to point to disclosures in the ’153 Patent where the TPC command accumulation of an exemplary embodiment is described as using an integrator and/or summing each TPC command adjustment to cumulatively affect a UE’s transmission power (PO Resp. 16 (citing Ex. 1001, 3:39–43, 7:15–29, 9:27–42; Ex. 2016 ¶¶ 35–42); Pet. Reply 4–5 (citing Ex. 1001, 3:39–43, 7:2–6, 7:8–22, 9:28–40)), neither party has demonstrated persuasively that the intrinsic record of the ’153 Patent demonstrates a clear intent to limit “TPC command accumulation” to those particular embodiments.” slip op. at 11

    • Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundReasonable expectation not foundNot shown unpatentable

      “A rationale supports obviousness only where the proffered benefit would flow from the specific modification proposed; a benefit that the prior art realizes in a different structural context does not, without more, establish that the same benefit would result from inserting one reference’s element into the other. On this record, the nexus between Khan’s benefits and Petitioner’s “other bits” modification is missing.” slip op. at 40

    Patent outcomesUS 10,952,153 not shown unpatentable
    Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
    Patents in suitUS 10,952,153
  • PTAB · Jan 23, 2026 · IPR2024-01342 · APJ Terrence W Mcmillin · IPR · Final written decision

    Claims 1–4 and 6–10 are unpatentable as obvious over each asserted ground; claim 5 was not shown unpatentable because the petitions failed to establish its additional feed and time-period limitations.

    RulingsFinal written decision
    • Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITAPlain and ordinary meaningDecided for petitioner

      “1b, 1c, and 1e of claim 1 and in claims 4 and 5 of the ’753 patent. Patent Owner contends that the plain and ordinary meaning of “feed” is “one or more associated media elements.” See, e.g., PO Resp. 4. However, as discussed below, this alleged plain and ordinary meaning of feed is not supported by the claim language, the specification of the ’753 patent, or dictionary definitions of feed as contended by Patent Owner. We reject this contention and the related contentions that the cited art may be distinguished from the claims of the ’753 patent based on the recited term “feed.” Patent Owner relies on the language of claim 1 to support its” slip op. at 13

    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “The parties’ definitions are similar, although we observe that Patent Owner proposes that the person of ordinary skill would have a bachelor’s degree or an equivalent or professional experience, whereas Petitioner proposes that such a person would have both a degree and experience. Neither party presents any arguments relating or referring to the level of ordinary skill in the art. Determining the level of ordinary skill in the art involves various factors, including the “type of problems encountered in the art; prior art solutions to those problems; rapidity with which innovations are made; sophistication of the technology; and educational level of active workers in the field.” In re GPAC Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995) (citation omitted). The prior art of record also reflects the level of ordinary skill in the art. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001). We adopt Petitioner’s assessment of the level of skill in the art. Petitioner’s assessment is supported by the testimony of Dr. Almeroth and is consistent with the ’753 patent and the asserted prior art. However, our obviousness analysis would be the same under either party’s assessment. See Ex. 2014 ¶ 17 (Patent Owner’s declarant, Dr. Goodrich, stating that “I note that my definition of a POSITA is similar to that of Dr. Almeroth” and “My opinions in this declaration would not change were I to adopt the definition of a POSITA offered by Dr. Almeroth.”).” slip op. at 11

    • Expert testimonyPetitioner expert discountedDecided for patent owner

      “16 With regard to claim 5, the Petition cites paragraphs 97 and 98 of the Almeroth Declaration (Ex. 1002). See Pet. 28–29. We have considered the cited paragraphs in the Almeroth Declatation and found that they consist of nothing more than the inadequate and conclusory contentions in the Petition preceded by, in paragraph 97, “[i]n my opinion” and “it is my opinion” and, in paragraph 98, “[i]t is also my opinion.” Ex. 1003 ¶¶ 97, 98. As related to claim 5, we accord the Almeroth Declaration little or no weight. See 37 C.F.R. § 42.65 (a) (“Expert testimony that does not disclose the underlying facts or data on which the opinion is based is entitled to little or no weight.”). that might become out-of-date before a user accesses access [sic] them. Ex. 1003, 11:49–58 (emphasis added). The cited passage in Whitehead mentioning “near real-time” does not support finding that Whitehead teaches or suggests the elements recited in claim 5.” slip op. at 39

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

      “Petitioner contends, “[a] POSITA would have modified Whitehead’s mixing server 130 to incorporate Marcus ’904’s algorithm (running on Marcus ’904’s receiver) for receiving, selecting, ordering, and assembling different media streams (both for content and advertising).” Pet. 33. Petitioner supports this contention by articulating the following reasons for the asserted modification of Whitehead’s mixing server 130 to incorporate Marcus ’904’s algorithm: “makes it more likely the system will identify content best suited for a particular user,” “allows for more targeted advertising and/or an opportunity to maximize revenue,” “improves Whitehead’s ability to target content and advertising to a particular user,” “would unlock new revenue sources for Whitehead,” “Marcus ’904’s content selection and concatenation algorithm improves Whitehead’s efficiency,” “[b]oth Whitehead and Marcus ’904 generate custom media programming based on a user profile,” “incorporating Marcus ’904’s teachings would not require redesigning Whitehead’s architecture and instead merely supplements Whitehead’s disclosure,” and “Petitioner’s proposed modification can be implemented entirely in software and does not require any hardware modifications. Indeed, Whitehead acknowledges that such modifications are possible. EX1003 at 19:64-20:6, 22:26-40.” Id. at 33–35 (citing Ex. 1002 (Almeroth Decl.) ¶¶ 110–115) (emphasis omitted). Based on this undisputed showing, we find that one of ordinary skill would have had a motivation to combine the teachings of Whitehead and Marcus ’904 as asserted in the Petition with a reasonable expectation of success.” slip op. at 48

    Patent outcomesUS 8,886,753 mixed
    Claim construction§ 103 obviousnesscites Graham
    Patents in suitUS 8,886,753
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