• Samsung Electronics Co., Ltd. / Samsung Electronics America, Inc. v. Maxell LtdNo claims unpatentable
  PTAB · Oct 31, 2025 · IPR2024-00777 · APJ Jameson Lee · IPR · Final written decision

  Claims 16–27 were not shown unpatentable because Petitioner failed to account for limitations 16[b] and 16[i] and their counterparts across the asserted obviousness grounds.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Patent Owner proposes that a person of ordinary skill in the art “would have a Bachelor of Science degree in Electrical Engineering, Computer Engineering, Computer Science, Human Computer Interaction, or a related technical field, with at least one year of experience working in the field of user interfaces and/or content management.” PO Resp. 11 (citing Ex. 2040 ¶ 53). The Decision on Institution adopted Petitioner’s proposed level of ordinary skill in the art. Inst. Dec. 10. We find Patent Owner’s stated level to be less precise than that proposed by Petitioner in that the modifier “at least” used by Patent owner imposes no upper bound on the amount of experience possessed by one of ordinary skill in the art. Also, Patent Owner states: “The difference between the Board’s definition and Patent Owner’s (EX2040. ¶53) does not change the arguments set forth herein.” PO Resp. 11. Thus, we continue to adopt Petitioner’s stated level of ordinary skill in the art.4 4 All of our findings and conclusions would still be the same, however, had we applied Patent Owner’s articulation of the level of ordinary skill in the art.” slip op. at 8

  • Prior constructionPrior construction adoptedDecided for patent owner

    “In its Reply, Petitioner does not assert that the district court’s construction is incorrect. We agree with Patent Owner that the district court’s construction is better than Petitioner’s proposed construction, because for reasons indicated by Patent Owner, which are not disputed by Petitioner, settings in the computer, e.g., dedicated folders for each user are the user profiles, rather than simply data alone of any kind. Further, when asked about the appropriateness of the district court’s construction, counsel for Petitioner expressed that Petitioner has no objection to the Board’s adopting the district court’s construction for “user profile”: JUDGE LEE: So, you’d be fine with just going with the District Court’s construction? MR. HEINTZ: Yes, Your Honor. Tr. 15:22–24. For the foregoing reasons, we adopt the district court’s construction for “user profile,” i.e., “a collection of settings and information associated with a user.”” slip op. at 13

  • BurdenNot shown unpatentable

    “PO Resp. 30–31 (Figure 26 omitted). In its Reply, Petitioner still does not provide an articulated reason for placing user profile selection buttons, labeled with user names, within Horn’s panes 2601 or 2602. Reply 12–14. Although Horn does describe personalized profile, Petitioner points to no disclosure of Horn as to how a user would have selected his or her own profile from among a plurality of user profiles. Petitioner presents no reason for placing these user profile selection buttons, labeled with user names, gleaned from or suggested by Baumgartner, within either pane 2601 or pane 2602 in Horn’s workspace view. Further, pane 2602 contains “a list of all collections defined by MFS and the user,” and pane 2601 lists the source examined by the user to create his or her collections. Ex. 1005, 19:41–46. That disclosure suggests the contents of panes 2601 and 2602 are tied to one particular user. No rational basis is articulated by Petitioner to place user profile selection buttons within these panes which appear to be in the profile space of one user. For the foregoing reasons, Petitioner has not adequately accounted for limitation 16[b].” slip op. at 22

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

    “The test for sufficiency of a written description under 35 U.S.C. § 112 is whether the earlier application’s disclosure “reasonably conveys to those skilled in the art that the inventor had possession of the claimed subject matter as of the filing date.” Ariad Pharms., Inc. v. Eli Lilly & Co., 598 F.3d 1336, 1351 (Fed. Cir. 2010) (en banc). The specification must “clearly allow persons of ordinary skill in the art to recognize that [the inventor] invented what is claimed.” Id. The Court of Appeals for the Federal Circuit has explained: One shows that one is “in possession” of the invention by describing the invention, with all its claimed limitations, not that which makes it obvious. Id. (“[T]he applicant must also convey to those skilled in the art that, as of the filing date sought, he or she was in possession of the invention. The invention is, for purposes of the ‘written description’ inquiry, whatever is now claimed.”) (emphasis in original). One does that by such descriptive means as words, structures, figures, diagrams, formulas, etc., that fully set forth the claimed invention. Although the exact terms need not be used in haec verba, see Eiselstein v. Frank, 52 F.3d 1035, 1038, 34 USPQ2d 1467, 1470 (Fed.Cir.1995) (“[T]he prior application need not describe the claimed subject matter in exactly the same terms as used in the claims. . . .”), the specification must contain an equivalent description of the claimed subject matter. A description which renders obvious the invention for which an earlier filing date is sought is not sufficient. Lockwood v. American Airlines, Inc., 107 F.3d 1565 (Fed. Cir. 1997).” slip op. at 31

  Patent outcomesUS 11,017,815 not shown unpatentable
  Claim construction§ 103 obviousness§ 112 disclosurecites Phillips · KSR · Graham
  Patents in suitUS 11,017,815
• Shenzhen Tuozhu Technology Co. Ltd. v. Stratasys, Inc.Institution denied
  PTAB · Oct 6, 2025 · IPR2025-00585 · APJ Lilan Ren · IPR · Institution

  The Board denied institution on claims 1–6, 10–19 because claim 1’s scope is ambiguous and the petition 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

    “review. See 35 U.S.C. § 314 (2024); 37 C.F.R. § 42.4(a) (2024). Institution of an inter partes review requires that “the information presented in the petition . . . and any 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). For the reasons set forth below, we determine that the scope of claim 1 is ambiguous and that there is not a reasonable likelihood that Petitioner will prevail with respect to at least one challenged claim, and we deny inter partes review.1” slip op. at 2

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Term construed board ownOther

    “distinguishes and contrasts build material property from operational parameters. The diagnostic test passage therefore only describes a diagnostic test of the build material property but does not describe a subsequent diagnostic test to assess whether an operational parameter is suitable for the printer. Based solely on the diagnostic test passage and the prosecution history, a possible interpretation may be that the operational parameter determination in claim element 1b encompasses the diagnostic testing in claim element 1c. That is, “performing a diagnostic test to determine whether the operational parameter is suitable for the three-dimensional printer” in claim element 1c is subsumed as part of “determining an operational parameter of a fabrication process using the three-dimensional printer based upon the data, the operational parameter including at least one of a build platform temperature, a build volume temperature, an infill requirement, a rafting requirement, a support structure requirement, and a cooling requirement” in claim element 1b.” slip op. at 15

  • Disclosure Requirements (§112) › Written description (Ariad)Not entitled to earlier dateOther

    “benefit of the filing date of an earlier filed application only if the disclosure of the earlier application provides support for the claims of the later application, as required by 35 U.S.C. § 112.” PowerOasis, Inc. v. T-Mobile USA, Inc., 522 F.3d 1299, 1306 (Fed. Cir. 2008); see also Research Corps. Techs. v. Microsoft Corp., 627 F.3d 859, 871–72 (Fed. Cir. 2010) (holding that claims of the later-filed application, which were not limited to a “blue noise mask,” were “not entitled to claim the benefit of their parent applications’ filing dates”); ICU Med., Inc. v. Alaris Med. Sys., 558 F.3d 1368, 1377–78 (Fed. Cir. 2009) (holding that “spikeless” claims “added years later during prosecution” were not supported by the specification which “describe[d] only medical valves with spikes”); Tronzo v. Biomet, Inc., 156 F.3d 1154, 1158–60 (Fed. Cir. 1998) (holding the generic shaped cup claims of the later-filed child application were not entitled to the filing date of the parent application that “disclosed only a trapezoidal cup and nothing more”). “To satisfy the written description requirement the disclosure of the prior application must convey with reasonable clarity to those skilled in the art that, as of the filing date sought, [the inventor] was in possession of the invention.” PowerOasis, 522 F.3d at 1306 (emphasis omitted; alteration in original). The sufficiency of written description support is based on “an objective inquiry into the four corners of the specification from the perspective of a person of ordinary skill in the art.” Ariad Pharm., Inc. v. Eli Lilly & Co., 598 F.3d 1336, 1351 (Fed. Cir. 2010) (en banc).” slip op. at 20

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner contends that a person of ordinary skill in the art in the field in the relevant time frame would have had “(1) at least a bachelor’s degree in Mechanical Engineering, Computer Engineering, Chemical Engineering, Materials Science, or a related field, and (2) at least two years of research or industry experience in 3D printing or materials used for 3D printing.” Pet. 5 (citing Ex. 1003 ¶ 20). Petitioner also contends that “[a]dditional experience could substitute for a formal degree or formal training (and vice versa).” Id. (citing the same). Patent Owner contends that an ordinarily skilled artisan “would have had a bachelor’s degree in Mechanical Engineering, Computer Engineering, Electrical Engineering, Chemical Engineering, Materials Science, or a comparable field and at least two years of experience related to 3D printing, with additional experience potentially being a substitute for a formal degree or training (and vice versa).” Prelim. Resp. 12. For purposes of this decision, we adopt Petitioner’s definition of the level of ordinary skill in the art as it appears unopposed and consistent with the disclosures of the ’464 patent and the prior art of record. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 9

  Claim construction§ 112 disclosurecites Phillips · KSR · Graham
  Patents in suitUS 11,167,464
• AT&T Mobility LLC / AT&T Services Inc. et al. v. Daingean Technologies Ltd.No claims unpatentable
  PTAB · Jul 14, 2025 · IPR2024-00402 · APJ Mary C Hoffman · IPR · Final written decision

  The Board granted Patent Owner’s revised non-contingent motion to amend, canceling claims 1–4 and substituting claims 7 and 8, which Petitioner did not prove unpatentable.

  RulingsFinal written decision

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

    “whether the 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.” See Lectrosonics, Inc. v. Zaxcom, Inc., IPR2018-01129, Paper 15 at 4 (PTAB Feb. 25, 2019) (precedential). A “patent owner bears the burden of persuasion to show, by a preponderance of the evidence, that the motion to amend complies” with the applicable statutory and regulatory requirements. 37 C.F.R. § 42.121(d)(1). Specifically, a patent owner must demonstrate the following: (1) the amendment proposes a reasonable number of substitute claims; (2) the amendment responds to a ground of unpatentability involved in the trial; (3) the amendment does not seek to enlarge the scope of the claims of the patent; and (4) the amendment does not introduce new matter. See 35 U.S.C. § 316(d); 37 C.F.R. § 42.121(a)–(b). For the reasons explained below, Patent Owner satisfies its burden of persuasion to show that the amendments comply with the applicable statutory and regulatory requirements.” slip op. at 8

  • Skill levelSkill level patent owner adoptedDecided for patent owner

    “Both parties rely on expert testimony for their respective positions relating to the number of years of experience needed to attain ordinary skill, but neither expert cites supporting evidence for their testimony. See Ex. 1002 ¶ 33; Ex. 2002 ¶ 15. Our decision is the same regardless of whether the length of experience is two years or three. We find Patent Owner’s proposed “wireless communications” is more consistent with the ’958 patent than Petitioner’s proposed “telecommunication,” which encompasses a variety of technologies including, e.g., landline and wireless telephones, cable, and satellite. See Ex. 1001, 1:11–62 (describing the invention in terms of wireless communications). Accordingly, we adopt a modified version of Petitioner’s proffered level of ordinary skill in the art, substituting “wireless communications” for “telecommunication.” Neither party, moreover, indicates the overall result would change based on a different definition.” slip op. at 18

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

    “We agree with Patent Owner that the recited second type SIBs exclude first type SIBs. The plain meaning of “first type” and “second type” indicates that the first type and second type are different in kind. RMTA 22 (App. A). Our interpretation is consistent with the Specification, which explains that second type SIBs exclude first type SIBs. As Patent Owner points out, the ’958 patent discloses “first type of system information (1TYP SIB) is . . . essential . . . for initial system access” and “second type of system information (2TYP SIB) is nonessential system information . . . defined as all other types of information, and thus excludes the [] information required for initial access.” Id. at 11–12 (citing Ex. 1001, 8:34– 46); see also Ex. 1001, Abstract (interchangeably using the terms second type and non-essential). Despite Petitioner’s argument that this disclosure is non-limiting and directed to a disclaimed example embodiment (Opp. 8–9), Petitioner could not identify any embodiment, among the approximately forty disclosed embodiments, describing something other than the first type SIB being essential information and the second type SIB being non-essential information. Tr. 22:18–26. Even the Petition acknowledges that “the ’958 Patent further classifies a second type of system information, the ‘non-essential’ SI, which is defined as all other types of information excluding that first type of information required for initial access.” Pet. 5. Furthermore, the prior art of record suggests that a person of ordinary skill would have understood second type SIBs exclude first type SIBs. See Ex. 1008 ¶ 48 (describing two categories of system information, “essential SI” and “Other SI”). Patent Owner’s expert also understood the recited first and second type SIBs as being mutually exclusive. See Ex. 1011, 49:10–13. For the above reasons, we do not agree with Petitioner that the recited second type SIB lacks any requirements, nor do we interpret claims 7 and 8 such that the first type SIB could be a second type SIB.” slip op. at 19

  • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)Not shown unpatentableNot shown unpatentable

    “(d) Limitation 7h: Analysis We agree with Patent Owner that Petitioner’s arguments with respect to limitation 7h are insufficient because they fail to address the limitation as written and improperly incorporate previous arguments by reference. For example, Petitioner did not map the recited “group identifier” when opposing Patent Owner’s Revised Motion to Amend. See Opp. 16–17. In its Sur-reply, Petitioner contends that limitation 7h’s requirement of transmitting the group identifier was previously “set out in Patent Owner’s prior papers,” but does not refer to any specific papers or exhibits. Pet. Surreply 11–12. We decline to search for and piece together Petitioner’s arguments and evidence to develop a persuasive theory of unpatentability. See 37 C.F.R. section 42.6(a)(3). Petitioner similarly failed to address adequately where Lee discloses or suggests the recited “compressed format” and “plural parameters.” See Opp. 16–17. Aside from the above concerns, we also do not see sufficient explanation with respect to limitation 7h’s requirement that the transmitting by broadcast be based on a comparison of the value tag. Petitioner argues that, because Patent Owner does not dispute limitation 7g, “it would have been obvious to a POSITA to use the same value tag[] to determine the system information broadcast in Lee’s compressed format embodiment.” Pet. Sur-reply 12. This conclusory statement is not supported by any citations to evidence and was improperly introduced in the Sur-reply. Moreover, whether it was obvious to determine what system information is broadcast is not commensurate with the claim scope because limitation 7h requires that the broadcasting (not the broadcast content) be based on a comparison of the value tag. See supra III.B.4 and IV.B. Further, we are not persuaded that Lee’s transmitting by broadcast is” slip op. at 26

  Patent outcomesUS 10,841,958 not shown unpatentable
  Claim construction§ 102 anticipation§ 103 obviousness§ 112 disclosurecites Phillips · KSR · Graham · Nautilus
  Patents in suitUS 10,841,958
• Microchip Technology Inc. v. Aptiv Technologies AGInstituted
  PTAB · Jul 15, 2024 · PGR2024-00011 · APJ Jean R Homere · PGR · Institution

  The Board instituted PGR on claims 1–15 and all asserted grounds, finding a reasonable likelihood that at least claim 1 is obvious over Chang, Chang II, and POSITA knowledge.

  RulingsInstitution decision

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

    “review. 35 U.S.C. § 324(a) (2018); 37 C.F.R. § 42.4(a) (2023) (“The Board institutes the trial on behalf of the Director.”). Section 324(a) provides that a post-grant review may not be instituted “unless . . . the information presented in the petition . . . , if such information is not rebutted, would demonstrate that it is more likely than not that at least 1 of the claims challenged in the petition is unpatentable.” Upon considering the evidence and arguments in the Petition (including its supporting testimonial evidence) and the evidence and arguments in the Preliminary Response (including its supporting testimonial evidence), we determine that the information presented shows that it is more likely than not that Petitioner would prevail with respect to at least one of the challenged claims. Accordingly, we institute post-grant review on all” slip op. at 2

  • Other 314aDenied

    “Petitioner hereby stipulates that, if the PTAB institutes this post-grant review, Petitioner will not pursue invalidity of the Challenged Claims in a parallel district court proceeding on the same grounds or any grounds that could have reasonably been raised before the PTAB in this Petition. Pet. 106. Petitioner cites the Director’s Memorandum, Interim Procedure for Discretionary Denials in AIA Post-Grant Proceedings with Parallel District Court Litigation, issued June 21, 2022 (“Guidance Memo”)3 in support of its contentions. Pet. 106.” slip op. at 11

  • PTAB / AIA Trials › Discretionary denial › §325(d) same art / argumentsDenied

    “§ 325(d), the Board uses the following two-part framework: (1) determining whether the same or substantially the same art previously was presented to the Office or whether the same or substantially the same arguments previously were presented to the Office; and (2) if either condition of the first part of the framework is satisfied, determining whether the petitioner has demonstrated that the Office erred in a manner material to the patentability of challenged claims. Advanced Bionics, LLC v. Med-El Elektromedizinische Geräte GmbH, IPR2019-01469, Paper 6 at 8 (PTAB Feb. 13, 2020) (precedential). In applying the two-part framework, we consider several non-exclusive factors, including: (a) the similarities and material differences between the asserted art and the prior art involved during examination; (b) the cumulative nature of the asserted art and the prior art evaluated during examination; (c) the extent to which the asserted art was evaluated during examination, including whether the prior art was the basis for rejection; (d) the extent of the overlap between the arguments made during examination and the manner in which petitioner relies on the prior art or patent owner distinguishes the prior art; (e) whether petitioner has pointed out sufficiently how the examiner erred in its evaluation of the asserted prior art; and (f) the extent to which additional evidence and facts presented in the petition warrant reconsideration of the prior art or arguments. Becton, Dickinson & Co. v. B. Braun Melsungen AG, IPR2017-01586, Paper 8 at 17–18 (PTAB Dec. 15, 2017) (precedential as to Section III.C.5, first paragraph) (“Becton, Dickinson”). Becton, Dickinson factors (a), (b), and (d) relate to whether the art or arguments presented in the Petition are the same or substantially the same as those previously presented to the Office. Advanced Bionics, Paper 6 at 10. Factors (c), (e), and (f) “relate to whether the petitioner has demonstrated a material error by the Office” in its prior consideration of that art or arguments. Id. Only if the same or substantially the same art or arguments were previously presented to the Office do we consider whether the petitioner has demonstrated a material error by the Office. Id. “At bottom, this framework reflects a commitment to defer to previous Office evaluations of the evidence of record unless material error is shown.” Id. at 9.” slip op. at 14

  • Skill levelSkill level patent owner adoptedDecided for patent owner

    “At the time of the invention, a POSITA would have had a bachelor’s degree in computer science, electrical engineering, or an equivalent, and two years of professional experience working with computer network protocols such as USB. Lack of work experience can be remedied by additional education, and vice versa. Id. (citations omitted). At this stage, we find Patent Owner’s proposed level of a POSITA to be consistent with the problems and solutions disclosed in the ’643 patent and prior art of record, and adopt it as our own for purposes of this Decision. See, e.g., In re GPAC Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995) (approving the determination of the level of ordinary skill in the art by appeal to the references of record). We nonetheless invite the parties to further address this issue, if they deem it necessary and appropriate. The parties should also specifically explain how different definitions for one of ordinary skill in the art relate to specific arguments and issues of unpatentability or claim construction, to the extent that a dispute remains as to who constitutes a POSITA.” slip op. at 20

  Claim construction§ 103 obviousness§ 112 disclosureDiscretionary denialcites KSR · Graham · Nautilus
  Patents in suitUS 11,681,643
• Intel Corporation v. Ax Wireless, LLCInstitution denied
  PTAB · Mar 5, 2024 · IPR2023-01146 · APJ Michael T Cygan · IPR · Institution

  The Board denied institution on all grounds because Petitioner did not show Huang or Sun was prior art to claims 1–10, which it argued were obvious over those references.

  RulingsInstitution decision

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

    “II. ANALYSIS A. Legal Standards Petitioner bears the burden to demonstrate unpatentability. Dynamic Drinkware, LLC v. Nat’l Graphics, Inc., 800 F.3d 1375, 1378 (Fed. Cir. 2015). For purposes of institution, Petition bears the burden to establish, by a reasonable likelihood that at least one of the challenged claims would have been obvious over the cited art. See 35 U.S.C. § 314(a). Where unpatentability rests on a document that is prior art to a challenged patent but for that patent’s priority claim to an earlier effective filing date, such a priority claim is not presumed valid. PowerOasis, Inc. v. T-Mobile USA, Inc., 522 F.3d 1299, 1305 (Fed. Cir. 2008) (noting that the USPTO does not routinely determine whether such priority claims meet the requirements of 35 U.S.C. § 120).” slip op. at 5

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “understanding of a person of ordinary skill in the art at the time of the invention. Id. at 13, 17. Petitioner asserts that a person of ordinary skill in the art would have had at least a Master’s degree in electrical engineer-ing or a similar discipline, and/or at least two to three years of experience working or conducting research in wireless commu-nication protocols, or an equivalent combination of education and experience. Pet. 6 (citing Ex. 1003 ¶¶ 71, 72). Patent Owner does not contest Petitioner’s assertion as to the level of ordinary skill in the art. Prelim. Resp. 6. We are persuaded, on the present record, that Petitioner’s proposal is consistent with the problems and solutions in the ’146 patent and prior art of record. We adopt Petitioner’s definition of the level of skill for the purposes of this Decision.” slip op. at 6

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Not reached

    “action under 35 U.S.C. § 282(b), including construing the claim in accordance with the ordinary and customary meaning of such claim as understood by one of ordinary skill in the art and the prosecution history pertaining to the patent. 37 C.F.R. § 42.100(b) (2022). The Board is required to construe “only those terms . . . that are in controversy, and only to the extent necessary to resolve the controversy.” Realtime Data, LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019) (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999)). Petitioner and Patent Owner, in extended briefing, contest the construction of the phrase “detecting, from the received wireless packet, the second header field which repeats the first header field,” as it appears in claim 1. Pet. 9; Prelim. Resp. 1; Pet. Reply 3; PO Sur-Reply 3. However, both parties appear to agree that the plain and ordinary meaning of the term should apply. See Pet. 6; Prelim. Resp. 15. Further, Petitioner has clarified that its statements as to the scope of the term are directed to its assertions that the ’146 patent lacks support for the claimed subject matter in its parent applications. Pet. Reply. 5–6. Consequently, we address claim construction arguments in their context of the parties’ priority contentions. See infra at II.D.1.” slip op. at 7

  • Disclosure Requirements (§112) › Written description (Ariad)Entitled to earlier dateDecided for patent owner

    “Patent Owner has shown sufficient written description support for the claims, including the disputed “detecting” limitation. The “decode-to-learn- ‘D’” description in the specification of the ’146 patent and in the provisional application to which the ’146 patent claims priority describe a specific procedure for the claimed “detecting, from the received wireless packet, the second header field which repeats the first header field.”3 See Ex. 1001, 2 Petitioner specifically asserts that Huang qualifies under 35 U.S.C. §102(b). Pet. 2, 19 (“by more than a year”). However, Huang’s patent issuance date of April 28, 2020 does not qualify under § 102(b) because it is less than one year before the December 29, 2020 filing date of the ’146 patent. Nevertheless, Petitioner has made an effective showing that Sun would qualify as prior art sufficient to shift the burden of production to Patent Owner. 3 Patent Owner does not explicitly show support for each of the applications in the priority chain. Patent Owner also cites to a Pre-Grant Publication rather than the underlying application despite the fact that such a Publication may include amendments to the originally filed application that would not evidence written description. See 37 C.F.R. § 1.215 (a); MANUAL OF PATENT EXAMINING PROCEDURE §1121; Ex. 2003, 7 (showing amendments 3:1–11; Ex. 2001 ¶ 35; Ex. 1008, 5–6; PO Sur-Reply 6. The “D” information is received in the wireless packet, and the receiver determines therefrom whether there is a second header field that repeats the first header field. See Ex. 1008, 5–6; PO Sur-Reply 6. The written description further includes descriptions of other embodiments for receiver detection with variable repetition, including detection “without knowing D a priori.” Ex. 1001, 2:18–3:59.” slip op. at 9

  Claim construction§ 112 disclosure
  Patents in suitUS 11,212,146
• Penumbra, Inc. v. Rapidpulse, Inc.All claims unpatentable
  PTAB · Sep 6, 2023 · IPR2022-00608 · APJ Jamie T Wisz · IPR · Final written decision

  Claims 1–21 are unpatentable: claims 1–14, 17–19, and 21 as obvious over Teigen and Grey; claims 15–16 over Teigen, Grey, and Yang; and claim 20 over Teigen, Grey, and Matteo.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “B. PERSON OF ORDINARY SKILL IN THE ART In determining the level of skill in the art, we consider the type of problems encountered in the art, the prior art solutions to those problems, the rapidity with which innovations are made, the sophistication of the technology, and the educational level of active workers in the field. Custom Accessories, Inc. v. Jeffrey-Allan Indus., Inc., 807 F.2d 955, 962 (Fed. Cir. 1986). The level of ordinary skill in the art is “a prism or lens through which . . . the Board views the prior art and claimed invention” to prevent hindsight bias. Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001).” slip op. at 8

  • Claim Construction › Intrinsic evidence (Phillips canons) › Lexicography (patentee as own lexicographer)Term construed petitioner constructionDecided for petitioner

    “as adopted by the Board in the Institution Decision. The ’253 patent explicitly defines this term, stating: The term “forward flow” is used herein to define an amount of liquid in the lumen 662 that exits the distal end 664 in a distal direction. Forward flow is defined as greater than 6 microliters of fluid (approximately 1 mm of catheter length of ID 0.071″=5.7 μL). Ex. 1001, 38:18–23 (emphasis added). Moreover, in discussing problems with the prior art systems, the ’253 patent states that “[w]hen positive pressure exists at the distal end of the lumen, liquid from inside the lumen exits out from the distal end of the catheter in a distal direction. This is referred to as forward flow.” Id. at 3:8–11. In the ’253 patent, the patentee acted as its own lexicographer as evidenced by usage of language such as “is used herein to define,” “is defined,” and “is referred to as,” to discuss “forward flow.” We find that the definition of “forward flow” in the ’253 patent specification would provide a person of ordinary skill with “reasonable clarity, deliberateness, and precision” as to the meaning of the term. See Paulsen, 30 F.3d at 1480; see also Ex. 1034 ¶¶ 13–14. Thus, we construe the term, “forward flow,” to mean “an amount of liquid in the lumen that exits the distal end in the distal direction that is greater than 6 microliters.” We disagree with Patent Owner’s contention that our construction imports limitations from a single embodiment into the claims. As explained above, the ’253 patent clearly defines the term “forward flow” and this definition is not limited to a single embodiment. In fact, the ’253 patent indicates that, while “[f]orward flow is defined as greater than 6 microliters of fluid . . . [l]ess forward flow is also included in this definition.” Ex. 1001, 38:21–24. The ’253 patent specifies that “the amount of forward flow can be restricted to no greater than 2 microliters or, in a particularly beneficial embodiment, forward flow is approximately zero microliters.” Id. at 38:24– 29. This language indicates that our construction encompasses multiple embodiments from the ’253 patent. We also disagree with Patent’s Owner’s proposed construction of “forward flow” because it is not supported by the ’253 patent specification. Patent Owner contends that “there is ‘no forward flow’ until the full extent of the distal portion” exits the distal end and thus forward flow is prevented when only less than “the full extent of the distal portion” exits the distal end. PO Resp. 9 (emphasis omitted). To adopt Patent Owner’s proposed construction, we would have to essentially ignore the ’253 patent’s express definition of this term. Further, there is no support in the ’253 patent specification for “full extent” or “fully exiting.” We also agree with Petitioner that Patent Owner’s construction effectively eliminates the concept of preventing forward flow because, as Patent Owner acknowledges, it could allow, for example, 20 milliliters of fluid to exit the catheter, which could displace the thrombus into the patient’s vasculature, a problem that the ’253 patent seeks to avoid. See PO Resp. 10–12 (citing Ex. 2014 ¶¶ 48–51); Pet. Reply 8–9 (citing Ex. 1034 ¶¶ 14–15).” slip op. at 13

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

    “As discussed above, we construe “forward flow” to mean “an amount of liquid in the lumen that exits the distal end in the distal direction that is greater than 6 microliters.” Thus, for the ’011 provisional to provide support for this limitation, the provisional must demonstrate that the inventors had possession of preventing greater than 6 microliters of fluid out of the distal end of the catheter. While Patent Owner points to disclosures from the ’011 provisional application that describe the desire to have “a minimal amount of momentum transfer from the fluid column to the stuck clot to unstick the clot sufficiently” and “[t]he exiting movement of fluid [being] limited to a specific volume and/or pressure and is automatically and precisely controlled” to prevent the “possibility of overshooting,” these disclosures would not convey to one of ordinary skill in the art that the inventors were in possession of a device that limited forward flow to no greater than 6 microliters of fluid. PO Resp. 35 (citing Ex. 1003 ¶¶ 15, 16, 138). Patent Owner also contends that the ’011 provisional application provides “multiple examples of liquid flow exiting the distal end of the catheter such that no forward flow occurs, such as 1 microliter or 0.5 mm of column shift.” PO Resp. 36–37 (citing Ex. 1003 ¶ 91). However, the disclosure cited by Patent Owner provides ranges of liquid flow of “approximately 0.001 ml to approximately 1.0 ml, in particular, approximately 0.1 ml to approximately 0.5 ml” and exemplary length of shift distances of “approximately 0.5 mm to approximately 30 mm, in particular, approximately 0.5 mm to approximately 15 mm.” Ex. 1003 ¶ 91. There is nothing in the ’011 provisional application that specifically directs the person of ordinary skill to the portions of these ranges that fall within the ’253 patent’s definition of “forward flow” (i.e., no greater than 6 microliters of fluid). In fact, the majority of the cited ranges are greater than 6 microliters, going all the way up to 1,000 microliters, such that there would be forward flow in these examples. See Ex. 1034 ¶ 25; Purdue Pharma, 230 F.3d at 1326–27 (“[O]ne cannot disclose a forest in the original application, and then later pick a tree out of the forest and say here is my invention. In order to satisfy the written description requirement, the blaze marks directing the skilled artisan to that tree must be in the originally filed disclosure.”); Fujikawa v. Wattanasin, 93 F.3d 1559, 1571 (Fed. Cir. 1996). Further, we note that the ’253 patent differentiates between embodiments that allow forward flow and embodiments in which no forward flow occurs. See Ex. 1001, 32:58–60, 37:19–22; Pet. Reply 10–11. For example, the ’253 patent describes an embodiment in which the “momentum causes a small amount of fluid to move through the distal portion of the catheter [] and create a small distal movement of the clot.” Ex. 1001, 32:47– 51. This same embodiment is disclosed in the ’011 provisional application. Compare Ex. 1003 ¶ 126 with Ex. 1001, 32:16–60. The ’253 patent describes this disclosure as an “exemplary embodiment” in which the “flow of fluid forward . . . is intentional, which is in contrast to other exemplary embodiments herein where substantially no forward flow occurs.” Ex. 1001, 32:57–60; see also, id. at 37:19–22 (“Turning now to embodiments . . . without the forward flow”).8 The ’011 provisional application does not include the subsequent embodiments from the ’253 patent that are described as being “without the forward flow.” See Ex. 1005 ¶ 68; Ex. 1034 ¶¶ 22–23. This further demonstrates that the ’011 provisional application does not support the limitation of “prevent[ing] forward flow.” We also note that the ’011 provisional application does not contain adequate support for the limitation of “substantially prevent[ing] forward flow” even under Patent Owner’s proposed construction. While the ’011 provisional discloses “controlling the distal movement of the fluid column” (Ex. 1003 ¶¶ 15, 16), this does not support Patent Owner’s assertion that the ’011 provisional teaches that “the distal portion of the fluid column is substantially prevented from fully exiting the distal end.” PO Resp. 35–36. For example, as discussed above, the ’011 provisional application discloses permitting distal flow of up to 1,000 microliters, which would likely exceed the amount that could be characterized as the full distal portion. Ex. 1003 ¶ 91; Ex. 1034 ¶ 25. Thus, we find that the ’011 provisional application does not “clearly allow persons of ordinary skill in the art to recognize that [the inventors] invented what is claimed.” In re Gosteli, 872 F.2d 1008, 1012 (Fed. Cir. 1989); Lockwood v. American Airlines, Inc., 107 F.3d 1565, 1572 (Fed. Cir. 8 Patent Owner contends that the statement in the ’253 patent regarding the “exemplary embodiment” of “forward flow” is referring to an embodiment in which the volume of the liquid drawn out from the lumen of the catheter is “approximately 0.2 ml.” PO Resp. 40–41 (citing Ex. 1001, 32:35–36; Ex. 1003 ¶ 126; Ex. 2014 ¶ 99). Even if this is correct, the ’011 provisional application does not include the embodiments that the ’253 patent specifically characterizes as being “without the forward flow.” Pet. Reply 10–11; Ex. 1005 ¶ 68; Ex. 1034 ¶ 22–25.” slip op. at 20

  • Novelty / Anticipation (§102) › Prior-art status of a reference › Patents / published applications (effective date, provisional support)Reference is prior artDecided for petitioner

    “Based on the above, we determine that, for prior-art determinations under AIA § 102, “there is no need to evaluate whether any claim of [a reference] patent document is actually entitled to priority or benefit under 35 U.S.C. 119, 120.” MPEP § 2154.01(b) (emphasis added). Rather, under the AIA, a reference patent document need only meet the “ministerial requirements” of §§ 119 and 120, and the provisional or other earlier application(s) to which the reference patent document claims a right of priority must “describe[] the subject matter” relied upon in the reference patent document as prior art. 35 U.S.C. § 102(d)(2). Patent Owner has not contested that Teigen meets the procedural requirements for claiming priority to the ’712 patent or the ’095 PCT application. Teigen also appears to meet the ministerial requirements for claiming priority to the provisional applications because it properly claims the benefit of these applications, the ’095 PCT application was filed co-pending with the provisional applications, and the applications share common inventors. Ex. 1007, codes (22), (60), (63), (72); Ex.1008, 2; Ex. 1009, 2; Ex. 2005, codes (22), (30), (72). Patent Owner does not dispute that Teigen meets the “ministerial requirements” of § 119. Because we find that the Dynamic Drinkware analysis does not apply here, we agree with Petitioner and Patent Owner, that we need not reach the issue of whether a claim from Teigen is supported by either Teigen provisional application. PO Sur-Reply 8; Pet. Reply 12–13.” slip op. at 30

  Patent outcomesUS 10,722,253 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousness§ 112 disclosurecites KSR · Graham
  Patents in suitUS 10,722,253
• Truist Bank v. United Services Automobile AssociationInstitution denied
  PTAB · May 16, 2023 · IPR2023-00144 · APJ Terrence W Mcmillin · IPR · Institution

  The Board denied institution on all challenged claims because Oakes supports the claimed mobile device, is not prior art, and the petition therefore did not meet the reasonable-likelihood threshold.

  RulingsInstitution decision

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

    “inter partes review may not be instituted unless the information presented in the Petition and the 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); 37 C.F.R. § 42.4(a) (“The Board institutes trial on behalf of the Director”).” slip op. at 2

  • Disclosure Requirements (§112) › Written description (Ariad)Written description adequateEntitled to earlier dateDecided for patent owner

    “Prelim. Resp. 24–26. We determine that this argument and evidence is more persuasive and better supported than Petitioner’s contrary arguments and evidence. We determine that Patent Owner’s position that a skilled artisan in the relevant time frame would have found clear support for the full-scope of the invention claimed including a “mobile device” as recited and construed as a “handheld computing device” is well-supported. In contrast, Petitioner’s argument and evidence are based on an improper claim construction and lack substantial supporting evidence. For these reasons, we determine that Oakes does provide written description support for “mobile device” as recited in the challenged claims of the ’432 patent and the ’432 patent is entitled to claim priority to the filing date of the application that issued as Oakes. As a result, Oakes is not prior art to the ’432 patent and all the challenges in the Petition fail because they rely on Oakes as prior art.” slip op. at 28

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

    “On this record and for purposes of deciding whether to institute trial, we construe “mobile device” as “handheld computing device,” because both parties ask us to adopt the District Court’s claim construction. 8 We do not 8 Petitioner does not dispute that we should “adopt[ ] the claim constructions [Patent Owner] advanced and the Court adopted in [the PNC Litigation].” include the phrase “excluding laptops” as part of this construction as the arguments in support of this construction in the Petition are contradicted by the evidence and Petitioner has otherwise failed to support the inclusion of this phrase in the construction.” slip op. at 18

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Petitioner’s proposal is consistent with the technology described in the Specification of the ’432 patent and the cited prior art. For that reason, and in order to determine whether Petitioner has demonstrated a reasonable likelihood of showing the unpatentability of at least one of the challenged claims, we adopt Petitioner’s proposed level of skill in the art.” slip op. at 13

  Claim construction§ 112 disclosurecites Phillips
  Patents in suitUS 10,482,432
• Hope Medical Enterprises, Inc. v. Oregon Health & Science UniversityOther
  PTAB · Apr 18, 2023 · IPR2022-00123 · APJ Zhenyu Yang · IPR · Final written decision

  The Board cancelled original claim 1 and denied substitute claim 2 for lack of written-description support; it did not reach the obviousness or enablement grounds.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “ordinary skill is inappropriate because it “requires qualifications that exclude even the sole inventor of the ’190 Patent, Dr. Edward Neuwelt.” MTA Opp. 1. According to Petitioner, Dr. Neuwelt is “a neurosurgeon,” not a pediatric oncologist, and lacks the requisite “at least 2 years” experience in platinum-based therapies. Id. (citing Ex. 1003, 18; Ex. 1038, 98:9–17, 100:15–101, 4). We agree with Petitioner. It is well settled that inventors are typically persons skilled in the field of the invention. Phillips v. AWH Corp., 415 F.3d 1303, 1313 (Fed. Cir. 2005) (en banc). Petitioner presents persuasive evidence to show that under Patent Owner’s proposed definition of the level of ordinary skill, Dr. Neuwelt, the sole inventor, would not qualify as an ordinarily skilled artisan, because he is not a pediatric oncologist, even though he is considered “one of the world leading experts on this compound [STS] and otoprotection” and “an expert in the area of [STS] as a . . . drug to use in children with medulloblastoma.” Ex. 1038, 98:9–17, 99:17–18, 101:18–102:13.” slip op. at 10

  • Expert testimonyPetitioner expert creditedPatent owner expert discountedDecided for petitioner

    “Paragraph 102 of Dr. Rassekh’s Declaration, however, does not support Patent Owner’s assertion. Instead, Dr. Rassekh testifies that [t]he stratum of previous craniospinal radiation therapy contained 8 participants: 2 of the 4 (50%) participants receiving STS had hearing loss compared to 4 of the 4 (100%) participants not receiving STS, and none of the hearing loss assessments were changed at the 1 year follow up period. (Ex. 1001 at 20: 28-32, 47-50.) Ex. 2024 ¶ 102. Dr. Rassekh offers no opinion on how many osteosarcoma patients with prior cranial irradiation and how many medulloblastoma patients with prior cranial irradiation had hearing loss.” slip op. at 20

  • 112 supportMotion to amend, deniedDenied

    “In sum, we find the disclosures of the ’243 application that Patent Owner relies on do not provide sufficient written-description support for the ototoxicity efficacy limitation.” slip op. at 21

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

    “F. Petitioner’s Asserted Unpatentability Grounds In light of our determination above that Patent Owner has not shown sufficient written-description support for proposed substitute claim 2 in the ’243 application, we do not reach the grounds of unpatentability set forth in Petitioner’s Opposition. See Revised MTA Opp. 17–25 (alleging non-enablement and obviousness).” slip op. at 26

  § 103 obviousness§ 112 disclosurecites Phillips
  Patents in suitUS 10,596,190
• Facebook, Inc. v. Palo Alto Research Center LLCAll claims unpatentable
  PTAB · Mar 22, 2023 · IPR2021-01461 · APJ Christopher L Ogden · IPR · Final written decision

  Claims 1–5, 7–11, 13–17, 19, and 20 are unpatentable under § 103; PARC’s contingent motion to amend is denied because the pending substitute claims lack written-description support and are obvious.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Relying on Mr. Schmandt’s testimony, Facebook argues that a person of ordinary skill in the art “would have possessed at least a bachelor’s degree in electrical engineering or computer science, and two years of work experience in the field of context-based computer systems, such as the collection, processing and use of context data in computer systems capable of adapting their operation based on context.” Pet. 6 (citing Ex. 1002 ¶¶ 15– 18). Facebook also contends that a person might qualify as an ordinarily skilled artisan “with more formal education and less technical experience, or vice versa.” Id. For this proceeding, PARC does not dispute this proposed level of ordinary skill. PO Resp. 16–17. Because Facebook’s uncontroverted articulation of the level of ordinary skill in the art is supported by testimonial evidence and appears consistent with the types of problems and solutions in the ’439 patent, we adopt it for this decision. See, e.g., Ex. 1001, 1:4–33 (“Background” section of the ’439 patent, describing the field and related art as relating to the use of using contextual data in computer systems).” slip op. at 10

  • Strike new argumentNew argument consideredDecided for petitioner

    “construction of the term “facts and assertions” or the identification of facts and assertions within Cheng. See Paper 23, 1–2. Having reviewed the arguments, we do not consider them untimely. As we discuss in more detail below, Facebook relied on the ordinary and customary meaning of the term “facts and assertions” in its Petition, and then when PARC raised an alternative construction of the term in its Response, Facebook responded to those arguments. See infra Sections IV.B.2, IV.C.4(a). Facebook’s Reply only responded to arguments raised in PARC’s Response and was not untimely. See 37 C.F.R. § 42.23(b) (permitting a petitioner to respond to arguments in a patent owner response); Anacor Pharm., Inc. v. Iancu, 889 F.3d 1372, 1380–81 (Fed. Cir. 2018) (“[T]he petitioner in an inter partes review proceeding may introduce new evidence after the petition stage if the evidence is a legitimate reply to evidence introduced by the patent owner, or if it is used ‘to document the knowledge that skilled artisans would bring to bear in reading the prior art identified as producing obviousness.’” (quoting Genzyme Therapeutic Prod. Ltd. P’ship v. Biomarin Pharm. Inc., 825 F.3d 1360, 1369 (Fed. Cir. 2016))). Moreover, PARC had a meaningful opportunity to address the arguments in its Sur-reply and in oral argument. See PO Sur-reply 7–12; Tr. 22–34. Thus, we do not find Facebook’s contested arguments untimely and we have considered them in our decision.7” slip op. at 8

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

    “We agree with Facebook. As we discuss below, Cheng teaches a graph-based model that stores data in memory on a per-user basis. See infra Section IV.C.4(a); Ex. 1003, Fig. 7. Also, as PARC acknowledges, Facebook’s expert Mr. Schmandt stated in deposition that he assumed, for his analysis, that the term “context graph” requires a “graph-based model.” PO Resp. 22 (citing Ex. 2019, 36:16–37:8); see also PO Sur-reply 4. Thus, because Facebook’s analysis of Cheng is consistent with the assumption that “context graph” has the meaning PARC proposes in this proceeding, we do not need to construe the term “context graph” to reach our decision. See 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 13

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

    “We agree with the parties that a person of ordinary skill in the art would have understood the term “fact” to include an indication of truth, whereas an assertion need not include such an indication. However, we disagree with PARC that a person of ordinary skill would have considered the term “assertion” to exclude facts. Indeed, in its ordinary and customary meaning, a fact stored in a context graph would be a type of assertion. We appreciate PARC’s argument that when two different terms appear in a claim, they presumably refer to different things. See PO Resp. 27 (citing CAE Screenplates, 224 F.3d at 1317). And we agree that the two terms have different meanings in claim 1 based on the plain meaning of each term. However, the specification refers to “stor[ing] facts and assertions about a user’s behavior and interests,” which simply appears to identify a single category of data for storage, i.e., “facts and assertions,” without specifying a clear difference between “facts” and “assertions.” See Ex. 1001, 3:21–22. In any event, we find no evidence of record suggesting that either (1) the (citing Pet. Reply 8–9). Because Facebook appears to have been relying on what it regarded as the plain meaning of the terms without proposing an explicit construction, we do not interpret Facebook’s argument in the Petition (Pet. 20–21) to imply that there is no distinction between a fact and an assertion, and do not find Mr. Schmandt’s later testimony (see, e.g., Ex. 2019, 41:3–11) inconsistent with arguments made in the Petition. ordinary and customary meaning of the term “assertion” excludes facts, or (2) that the ’439 patent uses these terms in a way that departs from their ordinary and customary meaning. That claim 1 requires the presence of both “facts” and “assertions” does not render the two terms superfluous, as this would exclude prior art in which a context graph includes only assertions but not facts. On the other hand, a disclosure of a collection of facts would meet the term “facts and assertions” because a person of ordinary skill in the art would have regarded any subset of the facts to also be assertions.” slip op. at 15

  Patent outcomesUS 9,208,439 unpatentable
  Claim construction§ 103 obviousness§ 112 disclosurecites Phillips · KSR · Graham
  Patents in suitUS 9,208,439
• Twitter, Inc. v. Palo Alto Research Center LLCAll claims unpatentable
  PTAB · Mar 22, 2023 · IPR2021-01430 · APJ Christopher L Ogden · IPR · Final written decision

  Claims 1–5, 7–11, 13–17, 19, and 20 are unpatentable under § 103; PARC’s contingent motion to amend is denied because the proposed substitute claims lack written-description support and are unpatentable.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedOther

    “Relying on Dr. Turnbull’s testimony, Twitter argues that a person of ordinary skill in the art “would at minimum have a bachelor’s in software, computer, or electrical engineering or computer science with at least two years’ experience in software development, including with respect to context-aware devices and systems, or the equivalent.” Pet. 16 (citing Ex. 1003 ¶ 24). Also, “[a]dditional graduate education could substitute for professional experience, or significant experience in electronic messaging could substitute for formal education.” Id. (citing Ex. 1003 ¶ 24). For this proceeding, PARC does not dispute this proposed level of ordinary skill. PO Resp. 21. Because Twitter’s uncontroverted articulation of the level of ordinary skill in the art is supported by testimonial evidence and appears consistent with the types of problems and solutions in the ’439 patent, we adopt it for this decision. See, e.g., Ex. 1001, 1:4–33 (“Background” section of the ’439 patent, describing the field and related art as relating to the use of contextual data in computer systems).” slip op. at 9

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

    “We agree as to Twitter’s last point, as we discuss below, that Cheng teaches a graph-based model that stores data in memory on a per-user basis. See infra Section IV.C.4(a); Ex. 1005, Fig. 7. Moreover, this decision does not address grounds of the Petition that omit Cheng as a reference, Cheng discloses a “context graph” under either party’s construction. Thus, we need not construe the term for this decision. See Nidec, 868 F.3d at 1017. Because the terms “recommender” and “application event data and/or operating system data” are not contested and are not material to our decision, we do not construe these two terms. See 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))). To the extent that other claim terms are significant, we discuss them below in the context of the asserted prior art.” slip op. at 12

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

    “We determine that Twitter has persuasively, and with sufficient specificity, shown that the combination of Huomo and Cheng teaches all aspects of limitation 13[d], and that it would have been obvious to modify Huomo by using Cheng’s personal interest graph as the model for how facts and assertions are stored in Huomo’s “blackboard.” This modification would have been compatible with Huomo and would simply affect the form of the information, or types of information, that are stored in Huomo’s blackboard. See Intel Corp., v. PACT XPP Schweiz AG, No. 2022-1037 at 10–13 (Fed. Cir. Mar. 13, 2023) (there is motivation to combine where one reference addresses a problem in one way, and another reference addresses the same problem in an alternative way that would be a suitable option). We agree with Twitter that this modification would have been within the ordinary skill in the art, that there would have been a reasonable expectation of success, and that an ordinarily skilled artisan would have recognized benefits to using Cheng’s graph-based structure such as the ability to better track social relationships through annotating the nodes and edges, and the ability to more easily track users’ shared interests and the influences that users may have on each other. See Pet. 53–55; Ex. 1003 ¶¶ 156–161.” slip op. at 30

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

    “We determine that Twitter has persuasively, and with sufficient specificity, shown that the combination of Huomo and Cheng teaches all aspects of limitation 13[d], and that it would have been obvious to modify Huomo by using Cheng’s personal interest graph as the model for how facts and assertions are stored in Huomo’s “blackboard.” This modification would have been compatible with Huomo and would simply affect the form of the information, or types of information, that are stored in Huomo’s blackboard. See Intel Corp., v. PACT XPP Schweiz AG, No. 2022-1037 at 10–13 (Fed. Cir. Mar. 13, 2023) (there is motivation to combine where one reference addresses a problem in one way, and another reference addresses the same problem in an alternative way that would be a suitable option). We agree with Twitter that this modification would have been within the ordinary skill in the art, that there would have been a reasonable expectation of success, and that an ordinarily skilled artisan would have recognized benefits to using Cheng’s graph-based structure such as the ability to better track social relationships through annotating the nodes and edges, and the ability to more easily track users’ shared interests and the influences that users may have on each other. See Pet. 53–55; Ex. 1003 ¶¶ 156–161.” slip op. at 30

  Patent outcomesUS 9,208,439 unpatentable
  Claim construction§ 103 obviousness§ 112 disclosurecites Phillips · KSR · Graham
  Patents in suitUS 9,208,439

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.