PTAB
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18 decisions · 529msnewest first
  • PTAB · Aug 4, 2026 · IPR2025-00249 · APJ Michael J Fitzpatrick · IPR · Final written decision

    Claims 1 and 4–8 are unpatentable: claims 1 and 4–6 as obvious over Huang2 and Kuo, and claims 7–8 as anticipated by Huang2; claims 2–3 were not shown unpatentable.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for patent owner

      “(“POSITA”) “would be a Ph.D. student with a minimum of two years of experience in their faculty advisor’s laboratory” and would have an understanding of “electrospinning fibers, including for tissue engineering, tissue engineering techniques, and using/performing FFT analysis.” Pet. 20– 21 (citing Ex. 1003 § II.C7). Patent Owner does not dispute Petitioner’s proposal but specifies the set of disciplines within which the Ph.D. would have been earned, namely “bioengineering, chemical engineering, mechanical engineering, or a related engineering discipline.” PO Resp. 6. We adopt and apply Petitioner’s proposal as clarified by Patent Owner regarding the Ph.D. discipline.” slip op. at 7

    • Claim Construction › Intrinsic evidence (Phillips canons) › Lexicography (patentee as own lexicographer)Term construed board ownDecided for patent owner

      “At the outset, we agree with Patent Owner that the Specification purports to define “major peaks” in the following sentence: “The ‘major peaks’ herein refer to peaks higher than the average of the peaks in the result.” Ex. 1001, 13:28–29. We determine that this language satisfies at least two of the criteria set forth in Alnylam. Specifically, the sentence at “refers to” to explain what qualifies as major peaks. That is not the end of the inquiry, however, as we find there is still some ambiguity as to whether the patentee intended to define “major peaks” so as to require so-called “minor peaks” in the claimed invention. See Bell Atlantic, 262 F.3d at 1268 (“[T]he intrinsic evidence must ‘clearly set forth’ or ‘clearly redefine’ a claim term so as to put one reasonably skilled in the art on notice that the patentee intended to so redefine the claim term.”). Importantly, the Specification does not treat the existence of minor peaks as prerequisites for the existence of major peaks. Indeed, the Specification does not discuss “minor peaks” at all. See generally Ex. 1001. Likewise, none of the claims of the ’227 patent, whether challenged or unchallenged, recites “minor peaks” or any additional peaks beyond the disputed “major peaks.” Id. at 23:30–24:42. Nor does the Specification include an example of FFT analysis results in which the average of the peaks therein is calculated and those higher than the average are identified as major peaks.8” slip op. at 9

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

      “Petitioner has the better position. Huang2 teaches crosslinking and provides a reason for doing so (stability). In particular, Huang2 states: “To better mimic skin ECM, electrospun collagen fibers have been fabricated, however, the rapid degradation and poor mechanical properties determine that either crosslinking or combination with other materials is necessary to obtain a stable scaffold.” Ex. 1005, 1791 (emphasis added). It is true that, in describing work actually carried out, Huang2 states that blending with PCL was performed and does not mention crosslinking. See id. at 1792 (“Nanofibrous matrices of PCL and Collagen at a weight ratio of 3:1 were fabricated using electrospinning as previously described.”). However, the prior art – here, Huang2 – is not limited to that which it describes having created. See In re Mills, 470 F.2d 649, 651 (C.C.P.A. 1972) (“a reference is not limited to the disclosure of specific working examples”); see also In re Lemelson, 397 F.2d 1006, 1009 (CCPA 1968) (“The use of patents as references is not limited to what the patentees describe as their own inventions or to the problems with which they are concerned. They are part of the literature of the art, relevant for all they contain.”); In re Fritch, 972 F.2d 1260, 1264 (Fed. Cir. 1992) (“It is well settled that a prior art reference is relevant for all that it teaches to those of ordinary skill in the art.”). Huang2 teaches two stabilization methods when using collagen in scaffolds. Huang2 states that one or the other “is necessary to obtain a stable scaffold” (when using collagen), but it does not preclude or teach away from using Patent Owner-cited testimony of Dr. Mikos is not as definitive as Patent Owner suggests; Dr. Mikos’s testimony is that a person of ordinary skill in the art “typically would not have done both.” Ex. 2015 ¶64 (emphasis added). The bottom line is that Huang2 teaches the person of ordinary skill in the art two ways to stabilize scaffolds/matrices comprised of collagen, provides a reason for doing so (stability), and does not teach away from using both. We are persuaded that a “scaffold comprising crosslinked fibers comprising collagen” would have been obvious in view of the cited teachings of Huang2.” slip op. at 33

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

      “We are not persuaded by Appellant’s citations to either reference. As discussed above, Petitioner’s Ground 1 is premised on a person of ordinary skill in the art altering the native flat sheet structure of Huang2 by rolling it into a jelly-roll structure as taught by Kuo. See Pet. 41 (Beginning its claim 2 arguments with the following: “Claim 1 is obvious for the reasons expressed above in § X.A., supra, which are incorporated herein.”); see also Pet. Reply 17 (“[B]ased on the explicit teaching of Kuo, a POSA would have been motivated to take the electrospun flat scaffold made by the techniques of Huang2, seed it with the desired cells, and roll it to treat a tendon and ligament.” (emphasis added)). Indeed, the paragraphs of Kuo that Petitioner cites for disclosing “scaffold sheets,” explicitly describe rolling them into jelly-roll like structures. See Ex. 1018 ¶7 (stating that “the sheet is spirally contacting a scaffold sheet of fibrous material with a cell; and rolling the scaffold sheet in a jelly-roll like manner to form a spirally wound tissue construct”), ¶22 (describing a method comprising “forming a tissue construct by contacting a scaffold sheet of fibrous material with a cell; and rolling the scaffold sheet in a jelly-roll like manner to form a spirally wound tissue construct” and implanting it in a patient). Petitioner fails to argue that that “one or more elongated sheets” recited in claim 2 would encompass the rolled structure of its proposed modification. Nor does Petitioner articulate a claim construction argument that could support such an argument. Petitioner has failed to prove, by a preponderance of the evidence, that claim 2 would have been obvious over Huang2 and Kuo.” slip op. at 42

    Patent outcomesUS 11,318,227 mixed
    Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · Markman · KSR
    Patents in suitUS 11,318,227
  • PTAB · Aug 26, 2025 · IPR2022-01531 · APJ Devon Zastrow Newman · IPR · Final written decision

    Claims 1–17, 20, 21, 24, 26, and 29–31 are unpatentable; claims 25 and 32–34 were not shown unpatentable, and the motion to exclude was dismissed as moot.

    RulingsFinal written decision
    • RemandOther

      “review of claims 1–17, 20, 21, 24–26, and 29–34 of the ’682 patent. Paper 2 (“Pet.”), 1, 3. Patent Owner, Hangzhou DAC Biotech Co., Ltd., filed a Preliminary Response (Paper 9, “Prelim. Resp.”). We initially determined that the information presented in the Petition did not establish a reasonable likelihood that Petitioner would prevail with respect to at least one of the challenged claims, and did not institute inter partes review. Paper 17. Petitioner requested Director review of our decision denying institution (Paper 18 (“Request”)). The Director delegated review of the decision to a Delegated Rehearing Panel (“DRP”). Paper 19. Patent Owner was granted the option to file a response to Petitioner’s Request (Paper 22 (“Request Resp.”)). The Delegated Review Panel vacated our decision and remanded the case to this panel with a revised claim construction for claim 1. Paper 23 (“DRP Dec.”). On August 30, 2024, we instituted an inter partes review after remand from the Director. Paper 25 (“Inst. Dec.”). Patent Owner subsequently filed a Patent Owner Response (Paper 31, “Resp.”), Petitioner filed a Reply (Paper 36, “Reply”), Patent Owner filed a Sur-reply (Paper 44, “Sur-reply”), and Petitioner filed a Sur-sur-reply (Paper 48, “Sur-sur-reply”).” slip op. at 2

    • PTAB / AIA Trials › Motions to amend / substitute claimsOther

      “I. Patent Owner’s Motion to Exclude Evidence Patent Owner moves to exclude Exhibits 1089 and 1090. Paper 50. As we did not rely on either of Exhibits 1089 or 1090 in deciding this matter, Patent Owner’s motion is dismissed as moot.” slip op. at 96

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

      “For these reasons, Patent Owner’s arguments and cited evidence also” slip op. at 31

    • Obviousness (§103) › Motivation to combine / reasonable expectation of successUnpatentableNot shown unpatentableMixed

      “function as R2, and the ethyl group may function as R4, which can be a linear alkyl having 1–6 carbon atoms. We note that claim 3 permits R5 and R6 to be absent. For these reasons, the arguments presented in the Petition demonstrate that claim 3 would have been obvious over Singh’s Compound 3 when modified in view of Harris.” slip op. at 73

    Patent outcomesUS 10,131,682 mixed
    § 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
    Patents in suitUS 10,131,682
  • PTAB · Mar 6, 2025 · IPR2023-01292 · APJ David C Mckone · IPR · Final written decision

    Claims 1–4, 6–10, and 17–21 are unpatentable over Ohel; claims 5 and 11–16 were not shown unpatentable over Ohel or Nigawara.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “III. ANALYSIS A. Level of Skill in the Art Petitioner, relying on the testimony of Mr. Williams, contends that a person of ordinary skill in the art “would have had at least a bachelor’s degree in computer science, electrical engineering, or a similar field, and would have had approximately two years industry experience in networking or communication systems.” Pet. 3 (citing Ex. 1002 ¶¶ 55–58). Patent Owner does not dispute Petitioner’s proposal. PO Resp. 9. Petitioner’s proposal is consistent with the technology described in the Specification and the cited prior art. On the complete record, we adopt this level of skill.” slip op. at 9

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

      “We have considered the parties’ citations to the specification and find examples that support Petitioner’s view that the term “entity” is broad enough to encompass dispatchers and individual users. See e.g., Ex. 1001, 3:52–4:5, 7:18–20, Fig. 1). However, we find no disclosure that redefines “entity” or excludes dispatchers and individual users from the category of “entity.” Patent Owner’s best examples (e.g., Ex. 1001, 1:15–21, 3:59–62) are no more than non-limiting examples. On the complete record, we conclude that “entity” is broad enough to include dispatchers and individual users.” slip op. at 20

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

      “have used a queue with Ohel’s system. This is insufficient because it does not provide evidence of a reason why a skilled artisan would have implemented Ohel’s system with a queue. See Auris Health, Inc. v. Intuitive Surgical Operations, Inc., 32 F.4th 1154, 1158 (Fed. Cir. 2022) (“The motivation-to-combine inquiry asks whether a skilled artisan ‘not only could have made but would have been motivated to make the combinations . . . of prior art to arrive at the claimed invention.’” (quoting Belden Inc. v. Berk- Tek LLC, 805 F.3d 1064, 1073 (Fed. Cir. 2015) (emphasis omitted))).” slip op. at 35

    • Obviousness (§103) › Motivation to combine / reasonable expectation of success › HindsightNot reached

      “have used a queue with Ohel’s system. This is insufficient because it does not provide evidence of a reason why a skilled artisan would have implemented Ohel’s system with a queue. See Auris Health, Inc. v. Intuitive Surgical Operations, Inc., 32 F.4th 1154, 1158 (Fed. Cir. 2022) (“The motivation-to-combine inquiry asks whether a skilled artisan ‘not only could have made but would have been motivated to make the combinations . . . of prior art to arrive at the claimed invention.’” (quoting Belden Inc. v. Berk- Tek LLC, 805 F.3d 1064, 1073 (Fed. Cir. 2015) (emphasis omitted))).” slip op. at 35

    Patent outcomesUS 7,324,802 mixed
    Claim construction§ 103 obviousnesscites Phillips · Graham
    Patents in suitUS 7,324,802
  • PTAB · Jun 18, 2024 · IPR2023-00468 · APJ Iftikhar Ahmed · IPR · Final written decision

    Claims 1–16 are unpatentable; claims 17–20 are not shown unpatentable because Petitioner failed to prove the asserted grounds by a preponderance of the evidence.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “PO Resp. 4 (citing Ex. 2012 ¶ 37) (emphases added). Patent Owner argues that Petitioner’s approach expansively includes anyone working on collision avoidance and does not acknowledge that the railroad industry specifically is resistant to change and innovation. Id. (citing Ex. 2012 ¶ 40). Accordingly, Patent Owner contends that a person of ordinary skill in the art also would be characterized as “reluctant to innovate, a characteristic of this industry.” Id. at 5.” slip op. at 10

    • Expert testimonyPatent owner expert discountedOther

      “Id. (citing Ex. 2016, 1–6; Ex. 2019, 1–4; Ex. 1054, 125:20–141:7). Petitioner argues that “Dr. Cooklev’s analysis is legally insufficient because he assumed that any product that met a claim was in fact coextensive with it, regardless of whether it had additional features,” “boil[ing] coextensiveness down to infringement.” Id. at 10 (citing Ex. 1051, 117:5–10). Petitioner contends that Patent Owner’s only evidence that unclaimed features are irrelevant to AURA’s success is Dr. Cooklev’s conclusion, which is factually insufficient as it is based entirely on conversations with Messrs. Gunther and Marchi, without independent analysis. Id. (citing Ex. 2011 ¶ 41).” slip op. at 26

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

      “Id. (citing Ex. 2016, 1–6; Ex. 2019, 1–4; Ex. 1054, 125:20–141:7). Petitioner argues that “Dr. Cooklev’s analysis is legally insufficient because he assumed that any product that met a claim was in fact coextensive with it, regardless of whether it had additional features,” “boil[ing] coextensiveness down to infringement.” Id. at 10 (citing Ex. 1051, 117:5–10). Petitioner contends that Patent Owner’s only evidence that unclaimed features are irrelevant to AURA’s success is Dr. Cooklev’s conclusion, which is factually insufficient as it is based entirely on conversations with Messrs. Gunther and Marchi, without independent analysis. Id. (citing Ex. 2011 ¶ 41).” slip op. at 26

    • Strike new argumentDenied

      “Accordingly, Patent Owner’s Motion to Strike Exhibit 1060 and portions of Petitioner’s Reply is denied.” slip op. at 78

    Patent outcomesUS 9,043,131 mixed
    § 103 obviousnesscites KSR · Graham
    Patents in suitUS 9,043,131
  • PTAB · Mar 20, 2024 · IPR2022-01434 · APJ Cynthia M Hardman · IPR · Final written decision

    Claims 1–9 and 15 are unpatentable over Chung and Olmos-based obviousness grounds; claims 10–14 were not shown unpatentable because the asserted references did not teach the claimed complementary relationship.

    RulingsFinal written decision
    • Expert testimonyOther

      “improperly incorporates-by-reference 12 pages of expert testimony via a single sentence.” PO Sur-reply 16 n.2 (citing Pet. Reply 17, which in turn cites Ex. 1026 (Hatch Decl.) ¶¶ 49–66). We find that many of the paragraphs within the cited range (i.e., Hatch Declaration paragraphs 49–66) appear to have a tenuous connection to the proposition for which Petitioner cites these paragraphs. See Pet. Reply 17. That said, we find that paragraphs 53–55 directly relate to Petitioner’s proposition in the Reply, i.e., that “Petitioner’s experts explain why a [person of ordinary skill in the art] would rely on a cross-sectional view over a perspective view for making the determination in question, because only the cross-sections provide the needed side view directly orthogonal to the positions of the yellow expansion portion and the end of the dovetail.” Id. Accordingly, we find that paragraphs 53–55—the only paragraphs we cite from Petitioner’s range in reaching our conclusion—are not improperly incorporated by reference into Petitioner’s Reply.” slip op. at 66

    • Strike new argumentNew argument consideredDenied

      “provide Petitioner an opportunity to respond under the new construction, and decline to strike Petitioner’s relevant argument and evidence. Cf. Axonics, 75 F.4th at 1383 (“[W]hen the Board adopts a new claim construction following institution, an IPR petitioner must have adequate notice and an opportunity to respond under the new construction.”). Like in Axonics, in its new arguments on Reply, Petitioner here relies on the same embodiment from the same prior art reference that it relies on in the Petition to support the same legal argument, i.e., that Olmos’s Figure 16 embodiment discloses the “complementary with one another” limitation of challenged claims 10– 14. See Axonics, 75 F.4th at 1384; see also Apple Inc. v. Andrea Elecs. Corp., 949 F.3d 697, 706 (Fed. Cir. 2020) (permitting petitioner to elaborate in reply on an unpatentability theory presented in the petition). Moreover, we permitted Patent Owner to file (and it indeed did file) a sur-reply brief and expert declaration that addressed Petitioner’s new obviousness theories. Accordingly, both parties had adequate notice of our preliminary construction and an opportunity to respond under that new construction. For these reasons, we deny Patent Owner’s motion to strike.” slip op. at 124

    • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableNot shown unpatentableMixed

      “from the expansion portion. We agree with Patent Owner that the wording of this limitation as a whole requires that the “extension necessarily must protrude beyond a longitudinal end of the expansion portion.” Id. at 11. We also agree with Patent Owner that “[u]nder Petitioner’s tenuous theory, an extension in any direction except 90 or 180 degrees would satisfy the claim language since any such direction has a so-called ‘longitudinal component.’” Id. at 13. For these reasons, we disagree with Petitioner’s argument that the purported “longitudinal component” of Chung’s extension satisfies limitation 1[h].” slip op. at 55

    • Obviousness (§103) › Motivation to combine / reasonable expectation of successUnpatentableNot shown unpatentableMixed

      “would have been motivated to add an extension to the Figure 16 embodiment because “an integrally-formed extension advantageously requires fewer parts, which facilitates both manufacturing and use.” Pet. 118. We agree with Patent Owner that this argument is unavailing. PO Resp. 50. Petitioner’s combination entails adding an extension (from Figure 8) to an embodiment lacking one (Figure 16). We agree with Patent Owner that adding a new component (whether separately or integrally) can in some instances complicate manufacturing/assembly and increase costs. See id. (citing Ex. 2013 (Culbert Decl.) ¶ 115). Petitioner has not sufficiently demonstrated that the proposed combination in this instance would reduce complexity or facilitate the manufacturing process. Accordingly, we do not rely on this argument offered by Petitioner.” slip op. at 106

    Patent outcomesUS 8,845,731 mixed
    § 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
    Patents in suitUS 8,845,731
  • Gen Digital Inc. v. Kajeet, Inc.Some claims unpatentable
    PTAB · Apr 13, 2023 · IPR2022-00001 · APJ Juliet Mitchell Dirba · IPR · Final written decision

    Claims 1, 5–15, 18–21, and 27–29 are unpatentable as obvious; claim 2 is not shown unpatentable. The revised motion to amend is denied for claims 31 and 35–45 and dismissed for claim 32.

    RulingsFinal written decision
    • BurdenMixed

      “of independent claim 1 is either taught or suggested by Putzolu. We are also persuaded that an ordinarily skilled artisan would have found it obvious, in view of Putzolu’s teachings, to arrive at the subject matter recited in claim 1. Accordingly, we conclude that Petitioner has shown, by a preponderance of the evidence, that the subject matter of claim 1 would have been obvious over Putzolu.” slip op. at 40

    • Obviousness (§103) › Analogous artAnalogous artDecided for petitioner

      “4. Putzolu and Bhat are Analogous Art Patent Owner contends that Putzolu and Bhat cannot be considered in” slip op. at 22

    • Expert testimonyPetitioner expert discountedPatent owner expert creditedDecided for patent owner

      “his analysis suffers from the same deficiencies as Patent Owner’s arguments and thus fails to sufficiently explain and support his conclusion on this point. See Ex. 2015 ¶¶ 32–40. Moreover, Mr. Sharma testifies that the term “communication device” is “broader” than the term “computing device” because a “communication device . . . might not do any computing,” and we find this to lack credibility. Id. ¶ 36; Ex. 1017, 34:9–35:12. This testimony is premised on Mr. Sharma’s assumption that a “computing” device must have “much more processing and intelligence on that device beyond just transmitting data” (Ex. 1007, 34:25–35:1), but this assumption is neither” slip op. at 16

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

      “4. Support in the Original Disclosure A motion to amend may not introduce new matter. 35 U.S.C.” slip op. at 68

    Patent outcomesUS 8,667,559 mixed
    § 103 obviousnesscites Phillips · KSR · Graham
    Patents in suitUS 8,667,559
  • PTAB · Feb 23, 2023 · IPR2022-00641 · APJ Garth D Baer · IPR · Final written decision

    Claims 4, 6, and 7 are unpatentable: claim 4 is anticipated by Torii, and claim 6 is obvious over Torii and Hebinuma; claims 1–3, 5, 8, and 9 were not shown unpatentable.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “These formulations are similar. We adopt Petitioner’s description as it is consistent with the prior art and patent specification before us and 8 US 6,413,822 B2, Jul. 2, 2002 (Ex. 1033, “Williams99”). supported by credible expert testimony. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (prior art itself may reflect an appropriate level of skill). However, our decision would be the same under either formulation.” slip op. at 6

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

      “B. CLAIM CONSTRUCTION Petitioner and Patent Owner offer different constructions for a single claim term—“penetrating.” See PO Resp. 19; Pet. Reply 1. However, the parties’ differing constructions do not impact our unpatentability analysis. Therefore, we decline to construe this term. We find no claim terms require express construction to determine unpatentability. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co. Matal, 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 7

    • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableUnpatentable

      “Rather, as explained above, Petitioner relies on the top portion of Torii’s electrode 13 as the claimed source electrode, and the bottom portions as the claimed conductive portions. That is, even if Patent Owner is correct that the claimed source electrode and conductive portions must be distinct structures, that does not undermine Torii’s disclosure because Petitioner relies on distinct portions of Torii’s larger, single-hashed element labeled electrode 13. Because Petitioner does not rely on the same structure, i.e., the entire electrode 13 of Torii, for each of two distinct claim elements, our conclusion does not conflict with the Federal Circuit’s holding in Becton. See Becton, 616 F.3d at 1254 (holding that a single hinge structure could not be both the claimed spring means and the claimed separate hinged arm); id. at 1255 (noting that “[i]f the hinged arm and the spring means are one and the same, then the hinged arm must be ‘connected to’ itself,” which is “a physical impossibility”) (emphasis added). Instead, we agree with Petitioner that this case is more analogous to Powell v. Home Depot U.S.A., Inc., 663 F.3d 1221, 1231–32 (Fed. Cir. 2011), where the court held the front half of a cutting box satisfied a “cutting box” limitation, and its rear half satisfied a separate “dust collection structure” limitation. See id.; Pet. Reply 3. Like Powell, which “divided the cutting box” into two portions that each met a single claim limitation, Petitioner argues that one portion of Torii’s electrode 13 (the top portion, colored red by Petitioner) discloses the source electrode, and the remaining portions of Torii’s electrode 13 (the bottom portions, colored pink by Petitioner) discloses the conductive portions. See Powell, 663 F.3d at 1231. In Powell, the claim required “[the] cutting box interior [to be] in fluid communication with [the] dust collection structure,” and the court found that this requirement did not require that the two elements “be wholly separate structures.” Id. at 1229, 1231–32. Similarly, we determine that the requirement that the source electrode and conductive portions are electrically connected does not require that these be wholly separate structures. For these reasons, we agree with Petitioner that together, the top portion of Torii’s electrode 13 discloses the source electrode and the bottom portions of Torii’s electrode 13 disclose the conductive portions recited in claim 4.” slip op. at 14

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

      “We agree with Petitioner that Hebinuma teaches the oval trenches recited in claim 6. See Ex. 1027, Fig. 9. In addition, we agree that Petitioner’s proposed combination would have been obvious because it amounts to no more than a simple substitution of one known element for another, i.e., Hebinuma’s elliptical trenches for Torii’s rectangular ones. See KSR Int’l Co. v. Teleflex Inc., 550 U.S. 398, 417 (2007). Thus, with the analysis outlined above, Petitioner has articulated sufficient reasoning with rational underpinning to support the legal conclusion that its proffered combination would have been obvious to one skilled in the art. See id. at 418. Patent Owner raises several arguments in contesting Petitioner’s obviousness challenge, none of which we find persuasive. For example, we disagree with Patent Owner that Torii and Hebinuma are not analogous art because a skilled artisan “would not have looked to Hebinuma to improve on Torii.” PO Resp. 72–76. The ’867 patent, Torii, and Hebinuma are all in the same field of “power semiconductor device[s] having a trench gate structure.” Ex. 1001, 1:5–8; Ex. 1027 ¶¶ 1–3; Ex. 1030 ¶¶ 1–4. Thus, Torii and Hebinuma are analogous to the ’867 patent. See In re Bigio, 381 F.3d 1320, 1325 (Fed. Cir. 2004). We also disagree with Patent Owner’s argument that one skilled in the art would not have had a reasonable expectation of success because Hebinuma’s oval-shaped trenches were “substantially more challenging” than Torii’s “well-known and well-studied” rectangular-trench solution. PO Resp. 77 (citing Ex. 2013 ¶¶ 128–130). Instead, we agree with Petitioner that one skilled in the art could reasonably expect success because the change “requires only minor changes to the photolithography mask” (Pet. 72; see Ex. 1002 ¶ 364), and because both Torii and Hebinuma expressly teach different trench shapes (see Ex. 1030 ¶ 116 (teaching that “the corner portion of the aperture . . . may be rounded”); Ex. 1027 ¶ 49 (teaching that “the contact trench Tc can be formed under similar conditions . . . with the exception of changing the patterning shape”)).” slip op. at 17

    Patent outcomesUS 8,247,867 mixed
    Claim construction§ 102 anticipation§ 103 obviousnesscites Enfish · KSR
    Patents in suitUS 8,247,867
  • PTAB · Feb 23, 2023 · IPR2022-00631 · APJ Garth D Baer · IPR · Final written decision

    Claims 4, 6, and 7 are unpatentable: claim 4 is anticipated by Torii, and claim 6 is obvious over Torii and Hebinuma; claims 1–3, 5, 8, and 9 were not shown unpatentable.

    RulingsFinal written decision
    • PTAB / AIA Trials › Joinder §315(c) / SAS all-or-nothingJoinder, grantedGranted

      “petition in IPR2022-00631 (challenging the same claims of the ’867 patent on the same grounds), and a motion for joinder (seeking to join this proceeding as a petitioner). BMW of N. Am., LLC v. Arigna Tech. Ltd, IPR2022-00631 (PTAB Mar. 8, 2022), Papers 1, 2 (petition), 4 (motion for joinder). We granted institution in IPR2022-00631 and granted BMW’s motion for joinder. Paper 28 (PTAB Sept. 1, 2022). Similarly, General Motors LLC (“GM”) filed a petition in IPR2022-00641 (challenging the same claims of the ’867 patent on the same grounds), and a motion for joinder (seeking to join this proceeding as a petitioner). General Motors, LLC v. Arigna Tech. Ltd., IPR2022-00641 (PTAB Mar. 8, 2022), Papers 2 (petition), 3 (motion for joinder). We granted institution in IPR2022-00641 and granted GM’s motion for joinder. Paper 29 (PTAB Sept. 1, 2022). VW and Patent Owner then reached a settlement and this proceeding was terminated only as to VW. Paper 30 (PTAB Sept. 9, 2022). Accordingly, we refer to BMW and GM, collectively, as “Petitioner.”” slip op. at 2

    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “These formulations are similar. We adopt Petitioner’s description as it is consistent with the prior art and patent specification before us and 8 US 6,413,822 B2, Jul. 2, 2002 (Ex. 1033, “Williams99”). supported by credible expert testimony. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (prior art itself may reflect an appropriate level of skill). However, our decision would be the same under either formulation.” slip op. at 6

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

      “B. CLAIM CONSTRUCTION Petitioner and Patent Owner offer different constructions for a single claim term—“penetrating.” See PO Resp. 19; Pet. Reply 1. However, the parties’ differing constructions do not impact our unpatentability analysis. Therefore, we decline to construe this term. We find no claim terms require express construction to determine unpatentability. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co. Matal, 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 7

    • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableUnpatentable

      “We disagree with Patent Owner’s argument because it mischaracterizes Petitioner’s reliance on Torii. Petitioner does not rely on a single structure as disclosing both the claimed source electrode and conductive portions. Rather, as explained above, Petitioner relies on the top portion of Torii’s electrode 13 as the claimed source electrode, and the bottom portions as the claimed conductive portions. That is, even if Patent Owner is correct that the claimed source electrode and conductive portions must be distinct structures, that does not undermine Torii’s disclosure because Petitioner relies on distinct portions of Torii’s larger, single-hashed element labeled electrode 13. Because Petitioner does not rely on the same structure, i.e., the entire electrode 13 of Torii, for each of two distinct claim elements, our conclusion does not conflict with the Federal Circuit’s holding in Becton. See Becton, 616 F.3d at 1254 (holding that a single hinge structure could not be both the claimed spring means and the claimed separate hinged arm); id. at 1255 (noting that “[i]f the hinged arm and the spring means are one and the same, then the hinged arm must be ‘connected to’ itself,” which is “a physical impossibility”) (emphasis added). Instead, we agree with Petitioner that this case is more analogous to Powell v. Home Depot U.S.A., Inc., 663 F.3d 1221, 1231–32 (Fed. Cir. 2011), where the court held the front half of a cutting box satisfied a “cutting box” limitation, and its rear half satisfied a separate “dust collection structure” limitation. See id.; Pet. Reply 3. Like Powell, which “divided the cutting box” into two portions that each met a single claim limitation, Petitioner argues that one portion of Torii’s electrode 13 (the top portion, colored red by Petitioner) discloses the source electrode, and the remaining portions of Torii’s electrode 13 (the bottom portions, colored pink by Petitioner) discloses the conductive portions. See Powell, 663 F.3d at 1231. In Powell, the claim required “[the] cutting box interior [to be] in fluid communication with [the] dust collection structure,” and the court found that this requirement did not require that the two elements “be wholly separate structures.” Id. at 1229, 1231–32. Similarly, we determine that the requirement that the source electrode and conductive portions are electrically connected does not require that these be wholly separate structures.” slip op. at 13

    Patent outcomesUS 8,247,867 mixed
    Claim construction§ 102 anticipation§ 103 obviousnesscites Enfish · KSR
    Patents in suitUS 8,247,867
  • PTAB · Feb 23, 2023 · IPR2021-01321 · APJ Garth D Baer · IPR · Final written decision

    Claims 4, 6, and 7 are unpatentable: claim 4 is anticipated by Torii, and claim 6 is obvious over Torii and Hebinuma; claims 1–3, 5, 8, and 9 were not proven unpatentable.

    RulingsFinal written decision
    • Skill levelSkill level petitioner adoptedDecided for petitioner

      “These formulations are similar. We adopt Petitioner’s description as it is consistent with the prior art and patent specification before us and 8 US 6,413,822 B2, Jul. 2, 2002 (Ex. 1033, “Williams99”). supported by credible expert testimony. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (prior art itself may reflect an appropriate level of skill). However, our decision would be the same under either formulation.” slip op. at 6

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

      “B. CLAIM CONSTRUCTION Petitioner and Patent Owner offer different constructions for a single claim term—“penetrating.” See PO Resp. 19; Pet. Reply 1. However, the parties’ differing constructions do not impact our unpatentability analysis. Therefore, we decline to construe this term. We find no claim terms require express construction to determine unpatentability. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co. Matal, 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 7

    • Novelty / Anticipation (§102) › Anticipation standard (single reference, every element)UnpatentableUnpatentable

      “Rather, as explained above, Petitioner relies on the top portion of Torii’s electrode 13 as the claimed source electrode, and the bottom portions as the claimed conductive portions. That is, even if Patent Owner is correct that the claimed source electrode and conductive portions must be distinct structures, that does not undermine Torii’s disclosure because Petitioner relies on distinct portions of Torii’s larger, single-hashed element labeled electrode 13. Because Petitioner does not rely on the same structure, i.e., the entire electrode 13 of Torii, for each of two distinct claim elements, our conclusion does not conflict with the Federal Circuit’s holding in Becton. See Becton, 616 F.3d at 1254 (holding that a single hinge structure could not be both the claimed spring means and the claimed separate hinged arm); id. at 1255 (noting that “[i]f the hinged arm and the spring means are one and the same, then the hinged arm must be ‘connected to’ itself,” which is “a physical impossibility”) (emphasis added). Instead, we agree with Petitioner that this case is more analogous to Powell v. Home Depot U.S.A., Inc., 663 F.3d 1221, 1231–32 (Fed. Cir. 2011), where the court held the front half of a cutting box satisfied a “cutting box” limitation, and its rear half satisfied a separate “dust collection structure” limitation. See id.; Pet. Reply 3. Like Powell, which “divided the cutting box” into two portions that each met a single claim limitation, Petitioner argues that one portion of Torii’s electrode 13 (the top portion, colored red by Petitioner) discloses the source electrode, and the remaining portions of Torii’s electrode 13 (the bottom portions, colored pink by Petitioner) discloses the conductive portions. See Powell, 663 F.3d at 1231. In Powell, the claim required “[the] cutting box interior [to be] in fluid communication with [the] dust collection structure,” and the court found that this requirement did not require that the two elements “be wholly separate structures.” Id. at 1229, 1231–32. Similarly, we determine that the requirement that the source electrode and conductive portions are electrically connected does not require that these be wholly separate structures. For these reasons, we agree with Petitioner that together, the top portion of Torii’s electrode 13 discloses the source electrode and the bottom portions of Torii’s electrode 13 disclose the conductive portions recited in claim 4.” slip op. at 14

    • Obviousness (§103) › Analogous artAnalogous artDecided for petitioner

      “Patent Owner raises several arguments in contesting Petitioner’s obviousness challenge, none of which we find persuasive. For example, we disagree with Patent Owner that Torii and Hebinuma are not analogous art because a skilled artisan “would not have looked to Hebinuma to improve on Torii.” PO Resp. 72–76. The ’867 patent, Torii, and Hebinuma are all in the same field of “power semiconductor device[s] having a trench gate structure.” Ex. 1001, 1:5–8; Ex. 1027 ¶¶ 1–3; Ex. 1030 ¶¶ 1–4. Thus, Torii and Hebinuma are analogous to the ’867 patent. See In re Bigio, 381 F.3d 1320, 1325 (Fed. Cir. 2004). We also disagree with Patent Owner’s argument that one skilled in the art would not have had a reasonable expectation of success because Hebinuma’s oval-shaped trenches were “substantially more challenging” than Torii’s “well-known and well-studied” rectangular-trench solution. PO Resp. 77 (citing Ex. 2013 ¶¶ 128–130). Instead, we agree with Petitioner that one skilled in the art could reasonably expect success because the change “requires only minor changes to the photolithography mask” (Pet. 72; see Ex. 1002 ¶ 364), and because both Torii and Hebinuma expressly teach different trench shapes (see Ex. 1030 ¶ 116 (teaching that “the corner portion of the aperture . . . may be rounded”); Ex. 1027 ¶ 49 (teaching that “the contact trench Tc can be formed under similar conditions . . . with the exception of changing the patterning shape”)).” slip op. at 18

    Patent outcomesUS 8,247,867 mixed
    Claim construction§ 102 anticipation§ 103 obviousnesscites Enfish · KSR
    Patents in suitUS 8,247,867
  • Netflix, Inc. v. Divx, LLCSome claims unpatentable
    PTAB · Feb 3, 2023 · IPR2020-00052 · APJ Iftikhar Ahmed · IPR · Remand

    On remand, claims 1 and 17–19 are unpatentable as obvious over Vehviläinen; the Board did not reach anticipation.

    RulingsRemand decision
    • RemandOther

      “Federal Circuit. Netflix, 2022 WL 2298983 at *1. The Federal Circuit vacated our Decision as to claims 1 and 17–19 and remanded for further consideration of whether claims 1 and 17–19 are unpatentable in light of the court’s construction of a disputed limitation recited in claim 1. Id. at *7. The Federal Circuit affirmed our Decision as to claims 2 and 4, and thus, those claims are not before us on remand. Id. The parties proposed filing a joint brief, with six pages per side, limited to identifying the issues that remain on remand and identifying relevant portions of the existing record, without submitting any new evidence or arguments, and we authorized the joint brief. Paper 87; Ex. 1028. Accordingly, the parties filed a joint brief. Paper 88 (“Joint Brief”). For the reasons discussed below, we conclude, in view of the Federal Circuit’s claim construction and the complete record before us, that Petitioner has shown, by a preponderance of the evidence, that claims 1 and 17–19 are unpatentable.” slip op. at 3

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

      “[t]he words of a claim are generally given their ordinary and customary meaning as understood by a person of ordinary skill in the art when read in the context of the specification and prosecution history.” Thorner v. Sony Comput. Entm’t Am. LLC, 669 F.3d 1362, 1365 (Fed. Cir. 2012) (citing Phillips, 415 F.3d at 1313). “There are only two exceptions to this general rule: 1) when a patentee sets out a definition and acts as his own lexicographer, or 2) when the patentee disavows the full scope of a claim term either in the specification or during prosecution.” Id. (citing Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1576, 1580 (Fed. Cir. 1996)). Neither of those exceptions apply here, and for the reasons below, we disagree with Patent Owner that the plain and ordinary meaning of “selecting a filter to apply” excludes determining whether or not to apply a given filter. We begin with the claim language at issue. TQ Delta, LLC v. DISH Network LLC, 929 F.3d 1350, 1357 (Fed. Cir. 2019). When considering the language of the claim overall, the usage of “selecting a filter” in the claims does not in any way indicate whether the filter has to be selected from among multiple filters. Claim 1 recites “selecting a filter to apply to determined level of detail.” Ex. 1001, 13:20–22 (emphasis added). Patent Owner argues that “the claim language confirms that ‘selecting a filter’ means choosing from a number of alternative filters, not merely deciding whether or not to apply a filter,” (PO Resp. 34), but we see nothing in the claim language that suggests such a requirement. Patent Owner also points us to claim 19, arguing that selecting is not merely deciding whether to apply a filter, “since that determination is already made in [c]laim 19 by virtue of the initial sub-step of ‘exceed[ing] the threshold.’” Id. Again, we see nothing in claim 19 that suggests the determination of the threshold being exceeded requires a specific manner of filter selection. Instead, similar to claim 1, claim 19 recites: “when the level of detail exceeds the threshold, selecting a filter to apply to predetermined pixels.” Ex. 1001, 16:8–9. Thus, we are not persuaded that the claim language necessarily requires selecting a filter from among multiple filters. slip op. at 14

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

      “because Vehviläinen performs additional analysis before selecting a moderate or high activity filter, it does not teach selecting from among multiple filters. As discussed above, we do not agree with Patent Owner’s claim interpretation, and even if we did, we are persuaded that a person of ordinary skill in the art would have easily modified Vehviläinen’s filter selection to use a single area, e.g., the smooth area of Figure 5A, and a decision branch based on the level of detail for that single area. Vehviläinen discloses that “increasing the amount of selection branches makes the system more adaptive to the nature of the blocking effect but also increases control logic.” Ex. 1004, 8:15–27. Vehviläinen states that “[a] good embodiment,” but of course, “the invention can be utilized with less than three branches.” Id. at 8:18–21. Dr. Bove testifies that a person of ordinary skill in the art “would have been motivated to reduce complexity and the required control logic by using fewer branches, as taught by Vehviläinen, including for example just one branch, particularly for applications running on performance-constrained platforms such as low-end computer processors or mobile platforms, which often had constraints on thermal dissipation, power consumption, and cost.” Ex. 1003 ¶ 120 (citing Ex. 1004, 11:7–22). He further testifies that a person of ordinary skill in the art “would have been motivated to determine the level of detail for just the ‘smooth’ area and then select the smooth filter, if the area is smooth, or the high-activity filter otherwise.” Id. Dr. Bove illustrates that modification with the following pseudocode: if ( IsSmooth (Figure_5A) == TRUE) { Select (SmoothFilter); } else { Select (HighActivityFilter); } Id. He further testifies that such a modification would have been obvious and well within [a person of ordinary skill in the art’s] level of skill, and [such a person] would have had a reasonable expectation of success given that [the] modification involves a simple reordering of elements taught by Vehviläinen, the fact that Vehviläinen expressly teaches the have had with these basic filtering and thresholding techniques. Id. On this aspect, we credit Dr. Bove’s testimony because it is based on the express teachings of Vehviläinen and addresses a straightforward modification in view of those teachings.” slip op. at 33

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

      “a) Patent Owner Has Not Established that It is Entitled to a Presumption of Nexus We determine that Patent Owner has not demonstrated a nexus between the evidence presented and claims 1 and 17–19. Patent Owner’s arguments and evidence are directed broadly to the DivX6 codec’s deblocking scheme and not specifically to the deblocking aspects covered by the challenged claims. We agree with Petitioner that the claimed features constitute only a small part of the commercial product and the two are far from being coextensive. See Pet. Reply 31 (citing Ex. 1017, 133:10–24; Ex. 1018, 34:4–35:1). As Dr. Bajaj explained, the “DivX [codec] included a lot of things” other than deblocking, and the DivX documentation details “only a fraction of the things that were there in the codec.” Ex. 1017, 133:10–24.” slip op. at 48

    Patent outcomesUS 8,139,651 mixed
    Claim construction§ 103 obviousnesscites Phillips · Graham
    Patents in suitUS 8,139,651
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