- PTAB · Apr 25, 2025 · IPR2024-01463 · APJ David Cotta · IPR · Institution
The Board instituted inter partes review of claims 1–10 on all asserted grounds, finding a reasonable likelihood of success on at least one claim.
RulingsInstitution decision- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Decided for petitioner
“predict how the district court in the related district court litigation will proceed because the court may determine whether or not to stay any individual case . . . based on a variety of circumstances and facts beyond our control and to which the Board is not privy.” Sand Revolution II LLC v. Cont’l Intermodal Grp., IPR2019-01393, Paper 24, 7 (PTAB June 16, 2020) (informative). We decline to speculate on how the court may rule on the pending motion to stay. Accordingly, this factor is neutral.” slip op. at 13
- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“Under 35 U.S.C. § 314(a), inter partes review may not be instituted unless the Petition “shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” Petitioner has established a reasonable likelihood of prevailing on its assertion that at least one of the challenged claims is unpatentable based on the grounds advanced here. We decline to deny the Petition on a discretionary basis as requested by Patent Owner. Thus, for reasons explained below, we institute inter partes review of claims 1–10 of the ’706 patent.” slip op. at 2
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundInstituted
“TC(220), and ΔRz/Ra are result effective variables and that copper foils having ΔPD, TC(220), and ΔRz/Ra values that meet the values recited in claim 1 have advantageous properties. See, e.g., Ex. 1005 ¶ 45 (Kim ’761, disclosing that preferably the “difference in peak count roughness Rpc between the shiny surface . . . and the matte surface . . . of the electrolytic copper foil . . . is preferably 60 or less” because “when the difference in the peak count roughness Rpc exceeds 60 capacity maintenance of the secondary battery is deteriorated.”);15 Ex. 1007, 3:16–23, 4:14–23 (Cheng, disclosing that the foils of Cheng’s invention have (220) and (311) surfaces that provide increased elongation and that solve a high roughness problem that rendered traditional products unsuitable for use in a lithium ion secondary battery), 10:27–34 (Cheng, disclosing that in the foils of Cheng’s invention “the roughness difference between both sides was extremely small” and thus “it was . . . not easy for the electrolytic copper foil to break or fracture during the charging-discharging cycles and the life of a battery is thus increased”), Tables 3 & 4 (Cheng, disclosing embodiments and comparative examples with TC(220) values meeting the requirements of claim 1); Ex. 1008, 6:36–44 (Wolski, disclosing that “the surface roughness Rz at the matte side of the untreated copper foil of the present invention is the same or smaller than the surface roughness Rz at the shiny side . . . so that the surface treated copper foil . . . becomes more low-profiled . . . whereby it becomes a foil having a large etching factor”), 9:1–29 & Table 2 (Wolski, disclosing 15 Dr. Randall testifies that “Kim ’761’s peak count roughness Rpc corresponds to the peak density PD of the ’706 patent.” Ex. 1003 ¶ 52. At this stage in the proceeding, this testimony is unrebutted. 38 embodiments meeting the ΔRz/Ra of claim 1, describing them as having “matte side roughnesses” that are “sufficiently small,” and as having “excellent” “high temperature elongation characteristics”), 11:37–41 (Wolski, describing comparative examples as having “large” matte side roughnesses “whereby etching factors are not good”), 12:12–27 (Wolski, teaching that “as compared with a conventional untreated copper foil, both surfaces of the untreated copper foil obtained by [Wolski’s] invention are flat” resulting in a low profile foil that has “excellent elongations at room temperature and high temperature and also high tensile strength”). The teachings in the prior art support the presently unrebutted testimony of Dr. Randall explaining why the POSA would have been motivated to modify Kim ’761’s copper foil to have the claimed TC(220) and ΔRz/Ra. Ex. 1003 ¶¶ 66–68, 71–74; Pfizer Inc., v. Sanofi Pasteur Inc., 94 F.4th 1341, 1348 (Fed. Cir. 2024) (“Where [a gap in prior art] includes a parameter not necessarily disclosed in the prior art, it is not improper to consider whether or not it would have been recognized as result-effective. If so, then the optimization of that parameter is ‘normally obvious.’”). Accordingly, we are not persuaded by Patent Owner’s argument that Petitioner failed to articulate a sufficient motivation to combine the references. To the contrary, the preliminary record presents a strong showing that the POSA would have been motivated to combine the references in the manner described in the Petition.” slip op. at 38
- Skill levelSkill level petitioner adoptedDecided for petitioner
“At this stage of the proceeding, Patent Owner does not contest Petitioner’s definition of the level of skill in the art. Prelim. Resp. 4 (“For purposes of this Preliminary Response, Patent Owner applies Petitioner’s level of skill for a person of ordinary skill in the art”). Petitioner’s definition appears to be consistent with the field of the invention reflected in the prior art of record and the disclosure of the ’706 patent. Accordingly, for purposes of this Decision, we adopt Petitioner’s proposed definition of the person of ordinary skill in the art.” slip op. at 21
Claim construction§ 103 obviousnessDiscretionary denialcites KSR · GrahamPatents in suitUS 11,591,706 - Solus Advanced Materials Co., Ltd. v. SK Nexilis Co., Ltd.Institution deniedPTAB · Apr 25, 2025 · IPR2024-01462 · APJ Jo-Anne M Kokoski · IPR · Institution
The Board denied institution because Petitioner did not show a reasonable likelihood that claims 1–8 were unpatentable under the asserted obviousness grounds.
RulingsInstitution decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“experience working on the development of materials or components for electronic devices such as batteries.” Pet. 2. Petitioner further contends that “[a]dditional education, such as a graduate degree, could compensate for less work experience, and additional work experience could compensate for less formal education.” Id. Patent Owner states that, “[f]or purposes of this Preliminary Response, Patent Owner applies Petitioner’s level of skill for a person of ordinary skill in the art.” Prelim. Resp. 4. For purposes of this Decision, we adopt Petitioner’s undisputed proposed definition because it appears to be consistent with the cited prior art and the disclosure of the ’014 patent. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (explaining that specific findings regarding ordinary skill level are not required “where the prior art itself reflects an appropriate level and a need for testimony is not shown” (quoting Litton Indus. Prods., Inc. v. Solid State Sys. Corp., 755 F.2d 158, 163 (Fed. Cir. 1985))).” slip op. at 8
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“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). Under this standard, claim terms are generally given their plain and ordinary meaning as would have been understood by a person of ordinary skill in the art at the time of the invention and in the context of the entire patent disclosure. Phillips v. AWH Corp., 415 F.3d 1303, 1313 (Fed. Cir. 2005) (en banc). Only those terms in controversy need to be construed, and only to the extent necessary to resolve the controversy. Realtime Data LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019). in this proceeding.” Pet. 3. Patent Owner contends that “[t]he Board need not construe any term in order to determine that institution should be denied.” Prelim. Resp. 4. Based on the record before us, we determine that no claim term requires express construction for purposes of this Decision. See Realtime Data, 912 F.3d at 1375.” slip op. at 8
- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)Institution denied meritsInstitution denied
“For these reasons, we are not persuaded that Petitioner sufficiently establishes that a POSITA would have been motivated to modify Hanafusa in light of Dobashi with a reasonable expectation of success as Petitioner contends. Accordingly, we determine that Petitioner fails to demonstrate a reasonable likelihood of prevailing in its assertion that the subject matter of claim 1, and claims 4 and 8 that depend therefrom, would have been obvious over the combined teachings of Hanafusa and Dobashi.” slip op. at 18
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation not foundNot shown unpatentableNot shown unpatentable
“Petitioner also focuses on Hanafusa’s teaching that all known methods can be used to make a rough surface low-profile, and Dobashi’s teaching that RSm can be used as an indicator for judgment of the surface, to support its contention that a POSITA would have been motivated to apply Dobashi’s RSm to further achieve Hanafusa’s purpose, without explaining how and why that would be the case. In particular, neither Petitioner nor Dr. Josefowicz adequately explain why a POSITA looking for ways to make Hanafusa’s surface roughness low-profile would look to methods to achieve as the period of waviness, RSm can also be used as an indicator for judgment of the surface.” Ex. 1005, 2:66–3:1, 6:23–26. Dobashi explains that waviness is “an indicator for determining whether the fine pattern forming performance is good or bad,” and “[t]he surface has small waviness and is smooth when RSm is large, and the surface has large waviness and is rough when RSm is small.” Id. at 3:1–3, 6:27–29. Dobashi also teaches that surface roughness Rzjis is used as a low-profile indicator. Ex. 1005, 2:66– 3:1. Dobashi, therefore, teaches that RSm is an indicator of surface waviness, which Dobashi explains is different than surface roughness. Id. at 2:66–3:3, 6:23–29. Given these teachings in Dobashi, neither Petitioner nor Dr. Josefowicz sufficiently explains how or why a POSITA would have been motivated to implement Dobashi’s RSm values to make Hanafusa’s surface roughness low-profile. See Pet. 10–12; Ex. 1003 ¶¶ 46–52.” slip op. at 14
Claim construction§ 103 obviousnesscites Phillips · KSRPatents in suitUS 11,346,014 - Align Technology, Inc. v. Dental Monitoring SASAll claims unpatentablePTAB · Apr 16, 2025 · IPR2024-00110 · APJ Kara L Szpondowski · IPR · Final written decision
Claims 1, 2, and 4–6 are unpatentable as obvious over Kim, Invisalign, and Salah.
RulingsFinal written decision- Skill levelSkill level board ownDecided for petitioner
“The parties agree that the proposed levels of ordinary skill in the art are “not materially different.” PO Resp. 4; Reply 2. The difference, essentially, is that Patent Owner more explicitly describes the members on the interdisciplinary team, and argues that it would be necessary to consult with such individuals, particularly with persons experienced in dentistry or orthodontics, whereas Petitioner’s proposal states that one “could” consult with such individuals. However, Patent Owner’s argument that it would be necessary for a person of ordinary skill in the art to consult with an individual having experience in dentistry and/or orthodontics is narrower than Patent Owner’s proposed level of skill in the art, which describes “individuals familiar with medical imaging, dental imaging, dentistry, and/or orthodontics.” PO Resp. 4 (emphasis omitted, emphasis added). Neither party presents any argument explaining how the differences in the respective educational backgrounds and work experience in the proposed definitions affect the dispute. Having considered the parties’ respective arguments and the evidence of record, we adopt a modified version of the parties’ proposals, and determine for purposes of this Decision that a person of ordinary skill in the art would have an advanced degree, such as a Masters’ Degree or Ph.D. in computer science, computer engineering, electrical engineering, or a related field, with at least two years of work in computer vision, image analysis, medical imaging, or related areas. Further, a person of ordinary skill in the art could have less education but significant professional experience in one or more of these fields, and could be a member of an interdisciplinary team which would have included individuals familiar with medical imaging, dental imaging, dentistry, and/or orthodontics.” slip op. at 10
- Expert testimonyPetitioner expert creditedDecided for petitioner
“We are satisfied that Dr. Foroosh qualifies as a person of ordinary skill in the art. First, Dr. Foroosh has the required educational background, with, for example, a Bachelor of Science in Electrical Engineering, a Master of Science in Electrical Engineering, a Master of Science in Computer Science and Engineering, and a Ph.D in Computer Science. Ex. 1003, 7; Ex. 1002 ¶ 3. Second, Dr. Foroosh has the required work experience, with, for example, research in machine learning, deep learning, and neural networks, image and video processing and analysis, and computer vision. Ex. 1003, 2, 4–8; see also id. at 9–13 (list of projects), 14–29 (list of publications), 32 (list of interdisciplinary research); Ex. 1002 ¶¶ 2–5 (describing work experience), 6–9 (describing research experience). Dr. Foroosh has also been part of interdisciplinary research efforts including those relating to the medical or dental fields, such as, research on the intersection of computer vision and augmented reality in medical and surgical interventions. Ex. 1003, 32; Ex. 1002 ¶ 12. Dr. Foroosh describes a research project, Modeling and Visualization of Muscoloskeletal Structures in Dental CT-Scan (2006–2007), where he “developed algorithms for [threedimensional (‘3D’)] registration, modeling and visualization of maxilla and mandible of patients for dental surgery using Computer Aided Tomography (CAT) scanning.” Ex. 1002 ¶ 6. He describes another project for the National Science Foundation, which “was directed to the registration/alignment of dental CT scans of patients over a period of time during the treatment of a patient, with the purpose of improving the quality of 3D models, e.g., corrections and noise removal in 3D CT scans.” Id. ¶ 7. He was also a co-author on Alignment of Maxillofacial CT Scans to Stone- Cast Models Using 3D Symmetry for Backscattering Artifact Reduction, Proceedings of Medical Image Understanding and Analysis Conference (MIUA) (2006), and an adviser for a dissertation directed to “Sub-pixel Registration in Computational Imaging and Applications to Enhancement of Maxillofacial CT Data,” which “focused on registration and alignment of 2D images and 3D digitized data obtained by dental CT scans and dental imprints of a patient.” Id. ¶¶ 8, 9. Although Dr. Foroosh is not a dentist or orthodontist, we determine that the breadth of his background, as fully set forth in Exhibit 1003, qualifies him to provide testimony from the perspective of a person of ordinary skill in the art. In short, we agree with Petitioner that Dr. Foroosh has “ample experience with medical and dental imaging,” as set forth above. Reply 2 (citing Ex. 1002 ¶¶ 6–9; Ex. 1003, 14, 15, 21, 26, 32). Moreover, we are afforded broad discretion in assigning weight that is to be accorded expert testimony. See Yorkey v. Diab, 601 F.3d 1279, 1284 (Fed. Cir. 2010) (“[T]he Board was well within its discretion to give more credibility to [one expert over another] unless no reasonable trier of fact could have done so.”); see also CTPG6 34–36. In the analysis that follows, when applicable, we weigh the credibility of Dr. Foroosh’s testimony, including with respect to Patent Owner’s arguments regarding Dr. Foroosh’s testimony on the Invisalign reference, and provide our reasons therefore.” slip op. at 12
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededNot reached
“proposed constructions. As there is no dispute between the parties, and after reviewing the complete record, we determine that express construction of “interior tooth outline,” “exterior tooth outline,” and “shape of an orthodontic aligner” is not necessary for purposes of this Decision. Further, Patent Owner does not dispute Petitioner’s interpretation of limitations 1(1) and 1(2), or Petitioner’s identification of the corresponding function and structure in limitation 1(3). We agree with Petitioner that step 2 of claim 1 recites a conditional limitation, that, if met, is not needed to be performed. See, e.g., Cybersettle, Inc. v. Nat’l Arbitration Forum, 243 F. App’x 603, 607 (Fed. Cir. 2007) (“It is of course true that methods steps may be contingent. If the condition for performing a contingent step is not satisfied, the performance recited by the step need not be carried out in order for the claimed method to be performed.”). This is supported by the Specification: In one embodiment, the dentition image is the aligner image. In other words, the same updated image makes it possible not only to see the aligner outline 28 but also to see the dentition outline 16, through the aligner (FIG. 3). This single image therefore makes it possible to compare aligner 20 and dentition outlines. Advantageously, readjustment step 2), described later, is not needed. Ex. 1001, 6:15–20 (emphasis added). Further construction of limitations 1(1) and 1(2) is not necessary for purposes of this Decision.” slip op. at 16
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)UnpatentableUnpatentable
“f) Conclusion Independent Claim 1 Therefore, we determine that, on the complete record, Petitioner has shown by a preponderance of the evidence that independent claim 1 would have been obvious over the combination of Kim, Invisalign, and Salah. 5. Remaining Claims Petitioner contends that the combination of Kim, Invisalign, and Salah teach the additional limitations of claims 2 and 4–6 and, in support, identifies certain passages and figures in the references and explains their significance with respect to the corresponding limitations. Pet. 34–46. Patent Owner does not separately challenge these contentions. See generally PO Resp. We have reviewed Petitioner’s contentions, which we find persuasive and adopt as our own. Therefore, we determine that Petitioner has also shown those claims to be unpatentable by a preponderance of the evidence. Id.” slip op. at 49
Patent outcomesUS 11,109,945 unpatentableClaim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 11,109,945 - Mediatek Inc. v. Parkervision, Inc.InstitutedPTAB · Mar 31, 2025 · IPR2025-00030 · APJ Barry L Grossman · IPR · Institution
The Board instituted IPR of claims 1–20 on all six asserted obviousness grounds, finding a reasonable likelihood that at least one challenged claim is unpatentable.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“Based on our review of the evidence and arguments, we determine that Petitioner has established a reasonable likelihood that that the cited references disclose all the limitations of the challenged claims, and that Petitioner has established why it would have been obvious to a person of ordinary skill to combine the references, as proposed, with a reasonable expectation of success, for the reasons advocated by Petitioner on all asserted Grounds. See Pet. 16–97 (citing Ex. 1003 ¶¶ 96–268).” slip op. at 23
- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Decided for petitioner
“1. whether the court granted a stay or evidence exists that one may be granted if a proceeding is instituted; 2. proximity of the court’s trial date to the Board’s projected statutory deadline for a final written decision; 3. investment in the parallel proceeding by the court and the parties; 4. overlap between issues raised in the petition and in the parallel proceeding; 5. whether the petitioner and the defendant in the parallel proceeding are the same party; and 6. other circumstances that impact the Board’s exercise of discretion, including the merits. Fintiv, Paper 11, 5–6. These factors relate to “whether efficiency, fairness, and the merits support the exercise of authority to deny institution in view of an earlier trial date in the parallel proceeding.” Id. at 6. In evaluating the Fintiv factors, we take “a holistic view of whether efficiency and integrity of the system are best served by denying or instituting review,” recognizing that “there is some overlap among these factors” and that “[s]ome facts may be relevant to more than one factor.” Id.” slip op. at 20
- PTAB / AIA Trials › Constitutional / APA (Arthrex, Oil States, due process)Decided for petitioner
“they “apply a preponderance of the evidence standard to determine patent validity, which is a lower burden of proof than the clear and convincing evidence standard required in district court.” Prelim. Resp. 1. According to Patent Owner “[t]his discrepancy undermines the presumption of validity afforded to issued patents and makes it easier to invalidate a patent in an administrative forum than in a judicial proceeding.” Patent Owner cites no authority or evidence to support this argument. Moreover, the Supreme Court has held that the decision to grant a patent “is a matter involving public rights—specifically, the grant of a public franchise. Inter partes review is simply a reconsideration of that grant, and Congress has permissibly reserved the [U.S. Patent and Trademark Office’s (“USPTO’s” or “PTO’s”)] authority to conduct that reconsideration.” Oil States Energy Servs., LLC v. Greene's Energy Grp., LLC, 584 U.S. 325, 334–35 (2018).” slip op. at 15
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundInstituted
“Petitioner also explains why a person of ordinary skill would have been motivated to combine the cited references, again citing annotated figures from the cited references, specific disclosures from the references, and supporting testimony from Dr. Larson. See, id. at 21–23. Based on our review of the evidence and arguments, we determine that Petitioner has established a reasonable likelihood that that the cited references disclose all the limitations of the challenged claims, and that Petitioner has established why it would have been obvious to a person of ordinary skill to combine the references, as proposed, with a reasonable expectation of success, for the reasons advocated by Petitioner on all asserted Grounds. See Pet. 16–97 (citing Ex. 1003 ¶¶ 96–268).” slip op. at 22
Claim construction§ 103 obviousnessDiscretionary denialcites Phillips · KSR · GrahamPatents in suitUS 8,498,593 - Innoscience (Zhuhai) Technology Company, Ltd. / Innoscience America, Inc. v. Efficient Power Conversion CorporationAll claims unpatentablePTAB · Mar 25, 2025 · IPR2023-01384 · APJ Jeffrey W Abraham · IPR · Final written decision
Claims 1–7 are unpatentable as obvious over Yoshida and Saxler; the Board did not reach the alternative grounds.
RulingsFinal written decision- Skill levelOther
“In light of the record before us, we determine that we do not need to reach a specific finding regarding the level of ordinary skill in the art. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (explaining that specific findings regarding ordinary skill level are not required “where the prior art itself reflects an appropriate level and a need for testimony is not shown”) (quoting Litton Indus. Prods., Inc. v. Solid State Sys. Corp., 755 F.2d 158, 163 (Fed. Cir. 1985)).” slip op. at 13
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededDecided for petitioner
“In the Institution Decision, we declined to adopt Petitioner’s proposed construction of the “side surfaces” limitation and determined that it was not necessary to further construe this term because “[t]he parties do not dispute that the language ‘side surfaces extending horizontally’ encompasses a gate material with sloped side surfaces as depicted in Figure 5 of the ’335 patent.” Inst. Dec. 11–16 (citing Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017); Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999) (“[O]nly those terms need be construed that are in controversy, and only to the extent necessary to resolve the controversy.”)). We invited the parties to address this limitation further during the course of this trial, but neither party provided additional evidence or argument regarding the “side surfaces” limitation. Inst. Dec. 16; see generally PO Resp.; Reply; Sur-reply. Accordingly, we maintain our determination from the Institution Decision that we do not need to construe the “side surfaces” limitation. Inst. Dec. 15– 16.” slip op. at 14
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed petitioner constructionDecided for petitioner
“This evidence, particularly the language in the ’335 patent itself, undermines Patent Owner’s argument that “[t]he process for forming gate ledges using separate masks instead of the self-aligned process disclosed in the ’335 patent cannot produce ledges that are ‘substantially symmetric.’” PO Resp. 39 (emphasis added); see also PO Resp. 42–43 (arguing that a gate structure with ledges having substantially equal widths is “not achievable” without using a single photo-mask process). We have considered the evidence presented by Patent Owner and Dr. Schubert in support of Patent Owner’s arguments. PO Resp. 38–43; Ex. 2005 ¶¶ 49–51. We, however, are unable to discern sufficient evidence supporting a conclusion that using separate masks cannot produce ledges that are substantially symmetric, particularly when the ’335 patent suggests otherwise. See Ex. 1001, 4:60– 63 (referring only to the “possibility of misalignment”). Even if, as Patent Owner and Dr. Schubert contend, misalignment “naturally” occurs when using a two-mask process, that does not foreclose the possibility that the” slip op. at 18
- Obviousness (§103) › Motivation to combine / reasonable expectation of success › Teaching awayTeaching away not foundDecided for petitioner
“It is well settled that “[a] reference does not teach away . . . if it merely expresses a general preference for an alternative invention but does not ‘criticize, discredit or otherwise discourage’ investigation into the invention claimed.” DePuy Spine, Inc. v. Medtronic Sofamor Danek, Inc., 567 F.3d 1314, 1327 (Fed. Cir. 2009) (quoting In re Fulton, 391 F.3d 1195, 1201 (Fed. Cir. 2004)). Furthermore, “teaching that a composition may be optimal or standard does not criticize, discredit, or otherwise discourage” slip op. at 31
Patent outcomesUS 10,312,335 unpatentableClaim construction§ 103 obviousnesscites Phillips · KSR · GrahamPatents in suitUS 10,312,335 - PTAB · Mar 24, 2025 · IPR2024-01420 · APJ Frances L Ippolito · IPR · Institution
Instituted IPR of claims 1–19 on all presented grounds after finding a reasonable likelihood that at least one claim is unpatentable, and declining Fintiv discretionary denial.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“Under 35 U.S.C. § 314(a), an inter partes review may not be instituted unless the information presented in the Petition and any response thereto shows “there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” Considering the arguments presented, we conclude that there is a reasonable likelihood that Petitioner would prevail in challenging at least one of claims 1–19 of the ’402 patent as unpatentable under the grounds presented in the Petition. Pursuant to § 314, we hereby institute an inter partes review as to these claims of the ’402 patent.” slip op. at 2
- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Denied
“Petitioner filed a Sotera stipulation. Paper 11. Petitioner’s Sotera stipulation “mitigates any concerns of duplicative efforts between the district court and the Board, as well as concerns of potentially conflicting decisions.” Sotera, Paper 12 at 19 (citing Sand Revolution, Paper 24 at 12). Accordingly, this factor weighs against discretionary denial.” slip op. at 46
- Skill levelSkill level petitioner adoptedDecided for petitioner
“Petitioner contends that a person of ordinary skill in the art (“POSITA”) at the time of the invention of the ’402 patent “would have had a bachelor’s degree in computer science, electrical engineering, computer engineering, or the equivalent technical training. Additionally, they would have at least three years of experience in designing or programming internet-related processes, such as user profile management and/or web-based targeted advertising.” Pet. 5 (citing Ex. 1003 ¶¶ 53–55). For purposes of the Preliminary Response, “Patent Owner applies Petitioner’s definition of a person of ordinary skill in the art (‘POSITA’).” Prelim. Resp. 8. For purposes of this Decision, we adopt Petitioner’s proposal as reasonable and consistent with the prior art. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (the prior art may reflect an appropriate level of skill in the art).” slip op. at 11
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“According to Petitioner: “Because the prior art asserted herein discloses the preferred embodiment within the indisputable scope of the claims, the Board need not construe the outer bounds of the claims as part of these proceedings.” Pet. 9 (citing Ex. 1003, ¶ 57). Patent Owner responds that, at the preliminary stage of this proceeding, “no term needs explicit construction to resolve any controversy between the parties.” Prelim. Resp. 9. We do not need to construe any terms expressly to reach our decision on institution. See Realtime Data LLC v. Iancu, 912 F.3d 1368, 1375 (Fed. Cir. 2019) (“The Board is required to construe ‘only those terms . . . that are in controversy, and only to the extent necessary to resolve the controversy.’” (quoting Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999))).” slip op. at 12
Claim construction§ 103 obviousnessDiscretionary denialcites KSR · GrahamPatents in suitUS 11,562,402 - PTAB · Mar 24, 2025 · IPR2024-01316 · APJ Michael R Zecher · IPR · Institution
The Board instituted IPR on claims 1–10 on all three obviousness grounds, finding a reasonable likelihood that Home Depot would prevail on at least one challenged claim.
RulingsInstitution decision- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Decided for petitioner
“In the absence of specific evidence, we will not attempt to predict how the district court in the related district court litigation will proceed because the court may determine whether or not to stay an individual case, including the related one, based on a variety of circumstances and facts beyond our control and to which the Board is not privy.” Sand Revolution II, LLC v. Continental Intermodal Grp. – Trucking LLC, IPR2019-01393, Paper 24 at 7 (PTAB June 16, 2020) (Decision Granting Request for Rehearing) (informative) (“Sand Revolution”). If Home Depot were to file a motion to stay in the EDTX Litigation, we decline to speculate how the district court would rule on such a motion. Accordingly, this factor is neutral. slip op. at 10
- PTAB / AIA Trials › Discretionary denial › §325(d) same art / argumentsDecided for petitioner
“RavenWhite does not dispute Home Depot’s assertion that the Examiner did not meaningfully address Hinton and Varghese, either alone or in combination, during prosecution of the ’823 patent. See Ex. 1003. Stated differently, with respect to factor (a), the Examiner did not apply the teachings of Hinton and Varghese, either alone or in combination, to teach 6 All references to the page numbers in the prosecution history of the ’823 patent refer to the page numbers inserted by Home Depot in the bottom, right-hand corner of each page in Exhibit 1003. or suggest the limitations of the originally presented claims of the ’823 patent, nor did the Examiner apply the teachings of these references to account for language that was added via amendment during prosecution (i.e., a “first client device browser storage area” and a “second client device browser storage area”). With respect to factor (b), RavenWhite does not provide an explanation as to how the teachings of Flash that were applied by the Examiner during prosecution of the ’823 patent are cumulative to the teachings of Hinton and Varghese applied by Home Depot in the Petition. Turning to factor (d), RavenWhite asserts that there is overlap between arguments that were presented during prosecution of the ’823 patent to distinguish the then-pending claims over Flash and the arguments presented in the Preliminary Response to distinguish the challenged claims over Hinton and Varghese. See Prelim. Resp. 25. This overlap, by itself, does not warrant discretionary denial because, as we explain below, Home Depot persuasively explains how the teachings of Hinton and Varghese account for the claimed “first client device browser storage area” and “second client device browser storage area.” See infra Section II.D.4.b and II.E.2.b. Accordingly, we are not persuaded by RavenWhite’s arguments that the Petition presents substantially the same art or arguments that were considered previously by the Examiner during prosecution of the ’823 patent. b. Becton, Dickinson Factors (c), (e), and (f) Advanced Bionics further informs our evaluation of factors (c), (e), and (f). Advanced Bionics indicates that satisfying the first part of the framework is a prerequisite to reaching the second part of the framework. See Advanced Bionics, Paper 6 at 8, 10. As we explain above, we determine that the Petition does not present the same or substantially the same art or arguments that were presented previously to the Office during prosecution of the ’823 patent. As a result, we need not reach whether Home Depot has demonstrated that the Office erred in a manner material to the patentability of the challenged claims of the ’823 patent. 2. Summary For the reasons given above, we conclude that the circumstances presented here do not warrant exercising our discretion to deny institution under § 325(d). Notably, the Examiner did not meaningfully address Hinton and Varghese, either alone or in combination, during prosecution of the ’823 patent. As a result, we decline to exercise our discretion to deny institution under § 325(d).” slip op. at 17
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction needed
“construction standard as in a civil action under 35 U.S.C. § 282(b). See 37 C.F.R. § 42.100(b). That is, claim terms generally are construed in accordance with their ordinary and customary meaning, as would have been understood by a person of ordinary skill in the art, in view of the specification and the prosecution history pertaining to the patent at issue. See id. The ordinary and customary meaning of a claim term “is its meaning to the ordinary artisan after reading the entire patent,” and “as of the effective filing date of the patent application.” Phillips v. AWH Corp., 415 F.3d 1303, 1313, 1321 (Fed. Cir. 2005) (en banc).” slip op. at 19
- Skill levelSkill level petitioner adoptedDecided for petitioner
“Relying on the testimony of Dr. Wills, Home Depot argues the following: [a] person of ordinary skill in the art at the time of the alleged invention of the ’823 patent (October 31, 2006) . . . would have had a Bachelors’ degree in electrical or computer engineering or a comparable field of study, plus approximately two to three years of professional experience with computer networks and digital information transmission techniques or other relevant industry experience. Additional graduate education could substitute for professional experience, and significant experience in the field could substitute for formal education. Pet. 6 (citing Ex. 1002 ¶ 65). In the Preliminary Response, “[RavenWhite] applies [Home Depot’s] definition of a person of ordinary skill in the art.” Prelim. Resp. 6 (citing Pet. 6). At this stage of the proceeding, we adopt Home Depot’s uncontested assessment of the level of skill in the art because (1) it is consistent with the ’823 patent and the asserted prior art; and (2) it is supported by the testimony of Dr. Wills.” slip op. at 22
Claim construction§ 103 obviousnessDiscretionary denialcites KSR · GrahamPatents in suitUS 10,594,823 - Innoscience (Zhuhai) Technology Company, Ltd. / Innoscience America, Inc. v. Efficient Power Conversion CorporationNo claims unpatentablePTAB · Mar 18, 2025 · IPR2023-01383 · APJ Kimberly Mcgraw · IPR · Final written decision
Claims 1–5 were not shown unpatentable because Petitioner did not sufficiently establish a reason to modify the asserted prior art.
RulingsFinal written decision- Expert testimonyPatent owner expert creditedDecided for patent owner
“We disagree with Petitioner’s argument because it fails to address Dr. Schubert’s academic and other experience with GaN transistors. Dr. Schubert is currently a tenured full professor in the Department of Electrical Computer, and Systems Engineering at Rensselaer Polytechnic Institute and was previously a tenured full professor in the Department of Electrical and Computer Engineering at Boston University. Ex. 2001, 129. Additionally, Dr. Schubert was the director of Boston University’s Semiconductor Devices Research Laboratory. Ex. 2001, 129. Dr. Schubert persuasively explains that his general expertise is in the field of electrical engineering and applied physics, including semiconductors, processing, and devices and his specific expertise is in the field of semiconductor materials (such as GaN), semiconductor devices, semiconductor integrated circuits, ohmic contacts, Schottky contacts, HEMTs, and optoelectronic devices such as light-emitting diodes (LEDs). Ex. 2001 ¶ 11, App’x A pp.129–137. His experience includes “the design, growth, fabrication, and testing of semiconductor devices as well as the employment of these devices in a variety of applications” and he is “familiar with both the design of such transistors [HEMTs] and the manufacturing processes used for FETs. Ex. 2001 ¶ 11, App’x A, pp. 129–137. He is an author or co-author of numerous text books and articles, and co-inventor of numerous patents, including those dealing with HEMT transistors and GaN devices. Ex. 2001 ¶ 13, App’x A, pp. 129–137. Petitioner fails to present any persuasive argument or evidence that Dr. Schubert’s extensive education and experience regarding GaN transistors is insufficient or lacking such that his testimony should be given little weight. Finally, we disagree with Petitioner’s additional argument that that its expert’s testimony (Dr. Shealy) should be given more weight than Patent Owner’s expert’s testimony (Dr. Schubert) because “[u]nlike Dr. Schubert, Dr. Shealy is one of the pioneer scientists in the field of GaN transistors.” Reply 34 (stating that Dr. Shealy’s research lab built the first GaN HEMT device on silicon in 1999 and citing Ex. 2002, 87:19–238). Obviousness is determined through the lens of a “person of ordinary skill in the art,” not through the lens of a person with extraordinary skill or a pioneer in the field. Given Dr. Schubert’s extensive relevant education and experience, Petitioner does not persuasively explain why Dr. Shealy’s testimony on any specific topic, or his testimony in general, should be given more weight than Dr. Schubert’s.” slip op. at 16
- Skill levelSkill level petitioner adoptedDecided for petitioner
“understanding of a person of ordinary skill in the art (sometimes abbreviated herein as “POSITA”). Graham, , 383 U.S. at 17–18. Petitioner argued that a person of ordinary skill in the art would have had a “at least a four-year degree in electrical engineering, chemical engineering, physics, or material science or a closely related field and at least two years of experience in semiconductor device design or fabrication, including the processing of semiconductor materials, analysis of device operation, or the development of new device topologies. Additional education could substitute for professional experience and vice versa.” Pet. 11 (citing Ex 1003 ¶ 69). Patent Owner did not dispute this proposed definition prior to institution. See generally Prelim. Resp. In our Decision on Institution, we adopted Petitioner’s proposal. After institution, Patent Owner asserted a slightly different definition of a POSITA, namely someone who “would have possessed at least a four-year degree in electrical engineering, physics, material science, or a closely related field, and three years of professional work experience in the epitaxial growth, design, and fabrication of semiconductor electronic devices, including those of GaN.” Resp. 17. Relevant graduate education could substitute for the professional work experience. Id. Upon review of the full record, we see no reason to modify, and we thus maintain, the definition of a POSITA applied in our Decision on Institution. We also determine that our decision would be the same under either of the parties’ proposed definitions.” slip op. at 14
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Not reached
“During the proceeding, the parties also dispute the proper construction of “etching away the doped GaN layer, except a portion of the doped GaN layer beneath the gate contact” as recited in step [1e4] and provided briefing on this issue. Papers 35, 36, 37, 38. Because, as explained below, our determination rests upon Petitioner’s failure to show a sufficient reason to modify the asserted art, which is not dependent upon any particular claim construction, we need not, and do not, address these claim construction issues. See Nidec Motor Corp. v. Zhongshan Broad Ocean Motor Co., 868 F.3d 1013, 1017 (Fed. Cir. 2017) (citing Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999)) (holding that only claim terms in controversy need to be construed, and only to the extent necessary to resolve the controversy).” slip op. at 13
- ExcludeDenied
“III. PETITIONER’S MOTION TO EXCLUDE EXHIBIT 2008 Petitioner filed a Motion to Exclude (Paper 25, “Mot.”) Exhibit 2008, which is a hearing transcript from the parallel ITC investigation. Mot. 1. Because we do not rely upon Exhibit 2008 in our Decision, we dismiss Petitioner’s motion as moot.” slip op. at 47
Patent outcomesUS 8,404,508 not shown unpatentableClaim construction§ 103 obviousnesscites Phillips · KSRPatents in suitUS 8,404,508 - Innoscience (Zhuhai) Technology Company, Ltd / Innoscience America, Inc. v. Efficient Power Conversion CorporationAll claims unpatentablePTAB · Mar 18, 2025 · IPR2023-01381 · APJ Jon B Tornquist · IPR · Final written decision
Claims 1–3 and 7–9 are unpatentable as obvious over Uemoto and Smith; the motion to amend is granted, and proposed substitute claims 13 and 14 are not shown unpatentable.
RulingsFinal written decision- Skill levelSkill level petitioner adoptedDecided for petitioner
“In order to determine whether an invention would have been obvious at the time the application was filed, we consider the level of ordinary skill in the pertinent art. Graham, 383 U.S. at 17. In assessing the level of ordinary skill in the art, various factors may be considered, including the “type of problems encountered in the art; prior art solutions to those problems; rapidity with which innovations are made; sophistication of the technology; and educational level of active workers in the field.” In re GPAC, Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995) (quotation omitted). Petitioner contends a person of ordinary skill in the art “would have possessed at least a four-year degree in electrical engineering, chemical engineering, physics, or material science, or a closely related field, and at least two years of experience in semiconductor device design or fabrication, including the processing of semiconductor materials, analysis of device operation, or the development of new device topologies.” Pet. 5–6. Petitioner contends “[a]dditional education could substitute for professional experience and vice versa.” Id. at 6. Patent Owner contends that a person of ordinary skill in the art would have had “at least a four-year degree in electrical engineering, physics, material science, or a closely related field, and three years of professional work experience in the epitaxial growth, design, and fabrication of semiconductor electronic devices, including those of GaN.” PO Resp. 7 (citing Ex. 2009 ¶ 82). Upon review of the evidence of record and the parties’ arguments, we adopt Petitioner’s definition of the person of ordinary skill in the art as it is consistent with the prior art of record. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (holding that the prior art itself can reflect the appropriate level of ordinary skill in the art). We note, however, that the conclusions reached in this Decision would be the same under either proposed definition of the ordinarily skilled artisan. See Ex. 2009 ¶ 83 (Dr. Schubert testifying that his opinions would be the same under either proposed definition); Ex. 1033 ¶ 9 (Dr. Shealy testifying that the differences in proposed definitions of the ordinarily skilled artisan “would not change the outcome of the invalidity analysis in any material manner”); PO Resp. 7; Pet. Reply 1.” slip op. at 9
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for patent owner
“compensated GaN layer above the barrier layer, and a gate contact above the compensated GaN layer.” Ex. 1001, 5:12–18. Petitioner contends the term “compensated” indicates that the step of compensating the GaN layer has already occurred, such that the term “compensated GaN layer” should be construed as a “‘[d]oped GaN layer formed with a step to passivate its impurities’ which is a ‘product-by-process’ limitation.”5 Pet. 12–14. And, because compensation with hydrogen was the “critical step” distinguishing the claims from the prior art, and because hydrogenation in as-grown III-nitride materials had been well known for over a decade by 2009, Petitioner contends “compensated” “cannot be interpreted as mere hydrogen presence in as-grown material, a well-known property of doped GaN.” Id. at 15. Patent Owner contends “compensated GaN material” should be construed as “a semiconductor GaN gate material in which one type of impurity (for example, donor) cancels the electrical effects of the other type of impurity (for example, acceptor).” PO Resp. 11 (citing Ex. 2009 ¶ 92) (emphasis added). Patent Owner contends this construction is consistent with the IEEE dictionary, which defines “compensated semiconductor” as 5 Given that product-by-process steps in a device claim are not entitled to patentable weight, Petitioner contends “the prior art only need show a material with passivated impurities to show unpatentability, not the step to achieve it.” Pet. 15–16. “[a] semiconductor in which one type of impurity or imperfection (for example, donor) partially cancels the electric effects of the other type of impurity or imperfection (for example, acceptor).” PO Resp. 14 (quoting Ex. 2004). Patent Owner contends its construction is also consistent with the written description of the ’294 patent, which explains that a compensated GaN material is part of the gate and includes a p-type impurity that imparts an electrical effect (i.e., conductivity), as well as a second impurity, e.g., hydrogen, that partially cancels the electrical effect of the p-type impurity, rendering the layer semi-insulating. Id. at 14–15 (citing Ex. 1001, 3:10–13, 3:43–45). On this record, we construe “compensated GaN layer” as “a GaN layer in which one type of impurity (for example, donor) partially cancels the electric effects of the other type of impurity (for example, acceptor).” This is consistent with the disclosures of the ’294 patent, the IEEE dictionary definition, and the construction ultimately adopted by the ITC. Ex. 2004, 3; Ex. 1049, 16–17 (ITC construing “compensated GaN layer” to mean “a GaN layer in which one type of impurity partially cancels the electrical effects of another type of impurity”); Ex. 1001, 3:43–45 (explaining that the compensated GaN layer of the ’294 patent is formed through the “passivation of a p-type impurity using hydrogen”). For the reasons set forth below, however, we decline to construe “compensated GaN layer” as a product-by-process claim term (as asserted by Petitioner), or to limit the compensated GaN layer to a gate material (as asserted by Patent Owner).” slip op. at 11
- Claim Construction › Intrinsic evidence (Phillips canons) › Specification disavowal / 'present invention' languageDisclaimer not foundDecided for petitioner
“There are two exceptions to the general rule that we apply the ordinary and customary meaning of a claim term: (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. See Thorner, 669 F.3d at 1365. The standards for lexicography and disclaimer, however, are “exacting.” Id. at 1366. There is no argument that the patentees acted as their own lexicographer to redefine the term “compensated GaN layer.” With respect to disavowal, a “patentee may demonstrate intent to deviate from the ordinary and accustomed meaning of a claim term by including in the specification expressions of manifest exclusion or restriction, representing a clear disavowal of claim scope.” Thorner, 669 F.3d at 1366 (quoting Teleflex, Inc. v. Ficosa N. Am. Corp., 299 F.3d 1313, 1325 (Fed. Cir. 2002)). As noted by Patent Owner, the title of the ’294 patent is, in part, “Compensated Gate MISFET” and much of the discussion of the ’294 patent is of a compensated GaN layer that is directly below the gate contact and above a barrier layer and operates in conjunction with the gate contact to control the on/off state of the transistor. PO Resp. 12–14. We are presented with insufficient argument or evidence to conclude, however, that these disclosures rise to the level of a disclaimer. For example, although the title of the ’294 patent is directed to a “Compensated Gate MISFET,” claim 1 is more broadly directed to “[a] column III Nitride transistor.” Ex. 1001, 5:12, code (54). Nor are we directed to an expression or statement of manifest exclusion in the ’294 patent that would serve to disclaim any “compensated GaN layer” that is not directly below the gate and/or that does not function in concert with the gate electrode to control the on/off state of the transistor. See Thorner, 669 F.3d at 1366. With respect to the stated goals of the invention, as noted by Patent Owner, one of the primary purposes of the compensated GaN layer of the ’294 patent is to reduce gate leakage and gate capacitance. Ex. 1001, 2:13– 19, 3:18–21 (“[U]sing a compensated semiconductor layer 38 leads to low gate leakage during device operation.”). We cannot use the goals of the invention, however, to rewrite the claims or insert terms that are not present. See Thorner, 669 F.3d at 1366. Moreover, the prior art of record indicates that a compensated GaN layer that is below the gate contact and above a barrier layer, but not part of the active gate structure, may also “decrease the leakage current between the gate and the drain.” Ex. 1006 ¶¶ 44 (“Even when a positive bias of 5 V or higher is applied to the gate electrode, no significant gate-leakage current is observed.”), 61. As such, evidence of record suggests that a person of ordinary skill in the art would have understood that one of the primary goals disclosed in the ’294 patent is achieved regardless of whether the compensated GaN layer is part of the gate, or simply in close vicinity to the gate. In view of the foregoing, we are not persuaded that the written description of the ’294 patent indicates that the “compensated GaN layer” must be part of the gate structure.” slip op. at 17
- Obviousness (§103) › Objective indicia / secondary considerations › NexusObjective indicia no nexusDecided for petitioner
“To be probative, Patent Owner must prove there is a nexus between the presented evidence and the merits of the claimed invention. See Demaco Corp. v. F. Von Langsdorff Licensing Ltd., 851 F.2d 1387, 1392 (Fed. Cir. 1988). A rebuttable presumption of nexus applies when the “patentee shows that the asserted evidence is tied to a specific product and that the product ‘is the invention disclosed and claimed.’” Fox Factory, Inc. v. SRAM, LLC, 944 F.3d 1366, 1373 (Fed. Cir. 2019) (quoting Demaco, 851 F.2d at 1392). “That is, presuming nexus is appropriate ‘when the patentee shows that the asserted objective evidence is tied to a specific product and that product embodies the claimed features, and is coextensive with them.’” Id. (quoting Polaris Indus., Inc. v. Arctic Cat, Inc., 882 F.3d 1056, 1072 (Fed. Cir. 2018)). If the praise is not limited to the features of the claimed invention, the patent owner may still prove nexus “by showing that the evidence of secondary considerations is the ‘direct result of the unique characteristics of the claimed invention.’” Id. at 1373–74 (quoting In re Huang, 100 F.3d 135, 140 (Fed. Cir. 1996)). Patent Owner contends that the compensated gate of the ’294 patent “was a breakthrough invention and resulted in the first commercially viable enhancement-mode GaN transistor.” PO Resp. 60 (citing Ex. 2009 ¶¶ 192– 193, 197; Ex. 2021). Patent Owner further contends that this achievement required the counter-intuitive use of a compensated gate material in the gate structure, and represented “a technological leap that laid the foundation for viable enhancement-mode GaN transistors.” Id. at 61–62. For this achievement, Patent Owner contends the inventor, Dr. Alex Lidow, received the 2015 SEMI Award. Id. at 60 (citing Ex. 2021). Upon review of Patent Owner’s evidence and the parties’ arguments, we find that Patent Owner’s objective indicia evidence is entitled to little, if any, weight. The evidence of praise relied upon by Patent Owner is not clearly linked to the claimed invention or any particular product having each of the claimed features of the ’294 patent. Ex. 2021. For example, the 2015 SEMI award was provided to Dr. Lidow “for commercialization of GaN power devices.” Id. An article explaining the award indicates that “high cost” previously “limited [the] commercial success” of GaN technologies, but Dr. Lidow was able to overcome these issues, “from resolving packaging limitations to establishing a low-cost supply chain,” “through persistence.” Id. This praise is not demonstrably linked to the claimed invention or any particular device, and does not mention the use of a compensated gate, or any other relevant feature recited in the claims. In view of the foregoing, we determine that Patent Owner’s objective evidence of non-obviousness is entitled to little, if any, weight.” slip op. at 20
Patent outcomesUS 8,350,294 unpatentableClaim construction§ 103 obviousness§ 112 disclosurecites KSR · GrahamPatents in suitUS 8,350,294 - PTAB · Mar 7, 2025 · IPR2024-01176 · APJ Jason M Repko · IPR · Institution
Instituted IPR of claims 1–23 on all petition grounds; the Board found a reasonable likelihood of success on at least one claim based on MPEG-1.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“To institute an inter partes review, we must determine “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 discussed below, Petitioner has shown a reasonable likelihood that it would prevail with respect to all claims challenged in the Petition. Thus, we institute an inter partes review.” slip op. at 2
- Skill levelSkill level petitioner adoptedDecided for petitioner
“A person of ordinary skill in the art (“POSITA”) at the time of the ’148 Patent would have had a (1) Bachelor’s degree in Electrical or Computer Engineering, Computer Science, or a comparable field of study such as Physics, and (2) approximately 2-3 years of practical experience with video and/or image processing or coding. More education could substitute for experience, and vice versa. Pet. 5–6 (citing Ex. 1003 ¶¶ 23–24). Patent Owner applied Petitioner’s definition in the Preliminary Response. Prelim. Resp. 16 (Pet. 5–6). At this stage, we adopt Petitioner’s uncontested assessment of the level of skill in the art because (1) it is consistent with the ’148 patent and the asserted prior art and (2) it is supported by the testimony of Dr. Eli Saber.” slip op. at 5
- Claim Construction › Intrinsic evidence (Phillips canons) › Plain and ordinary meaning to a POSITATerm construed board ownDecided for patent owner
“For purpose of institution, we preliminarily determine that claim 1 requires a sequence-level parameter. The claims themselves provide “substantial guidance” regarding the meaning of claim language. Phillips v. AWH Corp., 415 F.3d 1303, 1314 (Fed. Cir. 2005) (en banc). Here, claim 1 recites that the level is for encoding a “sequence.” Ex. 1001, 25:56–60. Claim 1 expressly recites that “the digital video sequence compris[es] a number of frames.” Id. at 25:43–44. In this way, claim 1 defines a sequence to exclude a single picture. This reading is consistent with the specification’s focus on a sequence-level solution. According to the ’148 patent, “The present invention improves prior art solutions for indicating QP related information by introducing a sequence level QP” (SQP). Id. at 11:25–27 (emphasis added). Indeed, Petitioner acknowledges that the SQP is the purported improvement. See Pet. 5. Patent Owner agrees. See, e.g., Prelim. Resp. 8–9, 25–26. Claims are not normally interpreted “in a way that excludes embodiments disclosed in the specification.” Oatey Co. v. IPS Corp., 514 F.3d 1271, 1276 (Fed. Cir. 2008). A trial could produce additional evidence that may support a determination in the Final Written Decision that defining a picture-by-picture quantization level is somehow “for use in encoding of the digital video sequence.” But, at this stage, the parties have given us little reason to adopt such a construction. There is no dispute that H.263 signals PQUANT at the Picture layer. Pet. 51; Prelim. Resp. 25. Indeed, the basis for Petitioner’s challenge is that PQUANT defines the quantizer for a picture and is updated for GOBs or macroblocks within the picture. Pet. 53. We disagree with the interpretation used in Petitioner’s challenge: a picture-layer quantization parameter falls within the scope of the claim. Id. at 51. Rather, for the reasons discussed above, we preliminarily determine that the claims require a sequence-level parameter. And Petitioner has not sufficiently explained why PQUANT is a sequence-level parameter. Thus, we cannot conclude that Petitioner has shown a reasonable likelihood of prevailing in its challenge to claim 1 with respect to H.263. See id.; Prelim. Resp. 25.” slip op. at 19
- Obviousness (§103) › Graham factors (scope of art, differences, level of skill)Instituted
Claim construction§ 103 obviousnesscites PhillipsPatents in suitUS 8,175,148
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.