- Posco Co., Ltd. v. ArcelormittalInstitutedPTAB · Jul 23, 2025 · IPR2025-00371 · APJ Brian D Range · IPR · Institution
The Board instituted IPR on claims 1–25 based on all petitioned grounds, finding a reasonable likelihood that POSCO would prevail.
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 “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.” The following findings of fact and conclusions of law are not final, but are made for the sole purpose of determining whether Petitioner meets the threshold for initiating review. Any final decision shall be based on the full trial record, including any response timely filed by Patent Owner. Any arguments not raised by Patent Owner in a timely-filed response may be deemed waived. For the reasons stated below, we determine that Petitioner has established a reasonable likelihood that it would prevail with respect to at least one claim. We hereby institute an inter partes review as to claims 1–25 of the ’227 patent based upon Petitioner’s asserted grounds of unpatentability.” slip op. at 2
- Skill levelSkill level petitioner adoptedDecided for petitioner
“Petitioner contends that a person of ordinary skill in the art (POSITA) “would have had an undergraduate degree in materials science, manufacturing engineering, mechanical engineering, or equivalent knowledge, training, or experience, with two years of experience working in metallurgy.” Pet. 6 (citing Ex. 1003 ¶ 15). For purposes of this Decision, we adopt Petitioner’s proposal as reasonable and consistent with the ’227 patent specification and 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 8
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“Petitioner does not propose any claim constructions. Pet. 3. We do not discern a need to construe explicitly any claim language at this juncture because doing so would have no effect on our analyses below of Petitioner’s asserted grounds and will not assist in resolving the present controversy between the parties. 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 9
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundInstituted
“35 U.S.C. § 103(a) as obvious over Takagi and Cornette, citing the Declaration of Dr. Miles for support. Pet. 1, 6–49 (citing Ex. 1003) (Petitioner’s Ground 1A). a. Claim 1 Petitioner argues that Takagi and Cornette teach or suggest each recitation of claim 1. Pet. 6–31. Petitioner argues, for example, that the preamble of claim 1 is not limiting or, alternatively, imparts no structural distinction from Takagi. Id. at 20–23 (citing, e.g., Ex. 1003 ¶ 48). Petitioner further argues that Takagi and Cornette teach forming or hot stamping to arrive at their products. Id. at 23 (citing, e.g., Ex. 1016 ¶ 36 (Takagi referring to “form[ing]” its products shape); Ex. 1014, 9–11 (Cornette referring to “hot stamping”); Ex. 1003 ¶ 48. Petitioner argues that Takagi teaches a strip of base steel having a first and second side. Id. at 23–24 (citing, e.g., Ex. 1003 ¶ 49; Ex. 1016 ¶¶ 13, 36. Petitioner argues that Takagi teaches a coating that is a “diffusion layer” having five phases as depicted by Takagi Figure 2A and explained by Takagi Table 1 (Takagi Fig. 4). Id. at 24–30 (citing, e.g., Ex. 1003 ¶¶ 50–59; Ex. 1016 ¶ 20, Fig. 2A). Petitioner argues that Takagi alone or as modified by Cornette teaches a coating thickness greater than than 30 µm. Id. at 30–31; Ex. 1014, 9; Ex. 1016 ¶ 35; Ex. 1003 ¶¶ 60–61. Petitioner explains why a person having ordinary skill in the art would have had reason to combine teachings of Takagi and Cornette with a reasonable expectation of success. Pet. 11–20 (citing, e.g., Ex. 1003 ¶¶ 31–47; Ex. 1016 ¶¶ 19–37, 47; Ex. 1014, 9; Ex. 1025, 5:17–20; Ex. 1026, 7; Ex. 1034 ¶ 13; Ex. 1055 ¶¶ 2, 7, 14–15, 18, Fig. 3). Based on our review and consideration of the current record, we determine that the information presented sufficiently supports, for purposes of institution, Petitioner’s assertions that Takagi and Cornette teach or suggest each limitation of claim 1. See Pet. 6–31. We therefore determine Petitioner has met its burden to show a reasonable likelihood it would prevail in demonstrating that claim 1 would have been obvious over Takagi and Cornette.” slip op. at 12
Claim construction§ 103 obviousnesscites KSR · GrahamPatents in suitUS 11,326,227 - Posco Co., Ltd. v. ArcelormittalInstitutedPTAB · Jul 23, 2025 · IPR2025-00370 · APJ Brian D Range · IPR · Institution
The Board instituted IPR of claims 1–30 on all twelve asserted obviousness grounds, finding a reasonable likelihood that POSCO would prevail.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“unless the information presented in the petition “shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” The following findings of fact and conclusions of law are not final, but are made for the sole purpose of determining whether Petitioner meets the threshold for initiating review. Any final decision shall be based on the full trial record, including any response timely filed by Patent Owner. Any arguments not raised by Patent Owner in a timely-filed response may be deemed waived. For the reasons stated below, we determine that Petitioner has established a reasonable likelihood that it would prevail with respect to at least one claim. We hereby institute an inter partes review as to claims 1–30 of the ’602 patent based upon Petitioner’s asserted grounds of unpatentability.” slip op. at 2
- Skill levelSkill level petitioner adoptedDecided for petitioner
“For purposes of this Decision, we adopt Petitioner’s proposal as reasonable and consistent with the ’602 patent specification and 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 9
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“Petitioner does not propose any claim constructions. Pet. 3. We do not discern a need to construe any claim language at this juncture because doing so would have no effect on our analyses below of Petitioner’s asserted grounds and will not assist in resolving the present controversy between the parties. 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” slip op. at 9
- BurdenInstituted
“determine that the information presented sufficiently supports, for purposes of institution, Petitioner’s assertions that Takagi and Cornette teach or suggest each limitation of claim 1. See Pet. 6–33. We therefore determine Petitioner has met its burden to show a reasonable likelihood it would prevail in demonstrating that claim 1 is obvious over Takagi and Cornette.” slip op. at 12
Claim constructioncites KSR · GrahamPatents in suitUS 10,961,602 - PTAB · May 16, 2025 · IPR2024-01487 · APJ Julia Heaney · IPR · Institution
The Board instituted IPR on all challenged claims and grounds, finding a reasonable likelihood that claim 1 would have been obvious over Nakazawa and Glaug.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“Institution of an inter partes review is authorized by statute when “the information presented in the petition . . . shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” 35 U.S.C. § 314(a). Upon consideration of the Petition in view of the record at this stage, we determine that Petitioner has established a reasonable likelihood that it would prevail in showing the unpatentability of at least one claim challenged in the Petition. We also determine that the arguments and evidence of record do not support discretionary denial of the Petition under 35 U.S.C. § 314(a). Accordingly, we grant institution of an inter partes review of all claims and all grounds asserted in the Petition.1” slip op. at 2
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundInstituted
“person of ordinary skill would modify either Nakazawa’s diffusion sheet or Glaug’s fluid acquisition system, but rather Petitioner argues “various layers in absorbent articles are invariably interchangeable.” Prelim. Resp. 41–42. Contrary to Patent Owner’s argument, as discussed above, Petitioner explains why and how a person of ordinary skill would modify Nakazawa’s diffusion sheet, and provides reasons for doing so. On this record, we find Petitioner’s reasoning sufficient.” slip op. at 24
- Obviousness (§103) › Motivation to combine / reasonable expectation of success › Teaching awayTeaching away not foundDecided for petitioner
“Patent Owner further argues Nakazawa teaches away from Petitioner’s asserted modification in which Glaug’s lower non-perforated layer is added to Nakazawa’s diffusion sheet. Prelim. Resp. 42. Specifically, Patent Owner argues Nakazawa teaches that its embodiment in which the second absorbent material is wrapped in a hydrophilic sheet has the advantage of preventing leakage of super absorbent polymer (“SAP”) from the second absorbent material without impeding permeation of excretory fluid through the hydrophilic sheet. Id. at 43 (citing Ex. 1008 ¶ 85, Fig. 15). Patent Owner further relies on Petitioner’s argument that Nakazawa’s hydrophilic layer is analogous to the lower non-perforated layer in Glaug. Id. (citing Pet. 93–94). Therefore, Patent Owner argues, Nakazawa teaches that Glaug’s fluid acquisition system would impede permeation of fluid rather than promote it. Id. Patent Owner’s teaching away argument is unavailing based on the current record. Patent Owner improperly relies on Petitioner’s contention in its anticipation challenge based on Nakazawa, and characterizes it as an argument about Glaug. As further discussed in Section II.G below, Petitioner’s anticipation challenge is based on analogizing Nakazawa’s hydrophilic sheet to a core wrap feature identified in Patent Owner’s infringement contention in parallel district court litigation. See Pet. 92–93. Contrary to Patent Owner’s argument, Petitioner’s obviousness contention does not argue Nakazawa’s hydrophilic layer is analogous to Glaug’s nonperforated fibrous layer. Because Patent Owner is not properly characterizing Petitioner’s obviousness contention, Patent Owner’s teaching away argument is not persuasive.” slip op. at 24
- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Denied
“Under Fintiv, we consider the following factors: 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 at 5–6.” slip op. at 35
Claim construction§ 103 obviousnessDiscretionary denialcites KSR · GrahamPatents in suitUS 9,308,138 - 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 - Uatp IP LLC v. Slick Slide LLCInstitutedPTAB · Apr 8, 2025 · PGR2024-00054 · APJ Julia Heaney · PGR · Institution
The Board instituted PGR on claims 1–17 and 22–28 and all asserted grounds, finding a sufficient likelihood that at least one challenged claim is unpatentable.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“Institution of a post-grant review is authorized by statute when “the information presented in the petition . . . would demonstrate that it is more likely than not that at least 1 of the claims challenged in the petition is unpatentable.” 35 U.S.C. § 324(a) (2018). Upon consideration of the parties’ submissions and the evidence of record, we determine that Petitioner has demonstrated that it is more likely than not that at least one claim challenged in the Petition is unpatentable. Further, Patent Owner has not persuaded us that it is appropriate to exercise our discretion not to institute review. Accordingly, we institute a post-grant review of all claims and all grounds asserted in the Petition.1” slip op. at 2
- Skill levelSkill level patent owner adoptedOther
“On this record, we do not find Patent Owner’s proposed experience level of at least five years in measurement and analysis of coefficient of friction to be supported. As to the necessity of experience in textile engineering and fiber science, Patent Owner’s position, although not supported by declarant analysis of the factors listed above, is consistent with the disclosure of the ’854 patent, which describes features of a mesh layer in textile and fiber terms. See e.g., Ex. 1001, 10:17–11:14, 12:65–13:8, 14:20–24. On the whole, however, we do not discern on this record how specific experience in textile engineering and fiber science of a person of ordinary skill would materially alter the outcome at this stage of the proceeding. For purposes of this decision only, we apply Patent Owner’s proposed definition of a person of ordinary skill in the art, except for the requirement of five years of experience in measurement and analysis of coefficient of friction. The level of skill in the art remains an open issue in this proceeding. Further submissions by the parties may include argument and evidence that would assist in the resolution of this issue at the close of trial.” slip op. at 8
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededNot reached
“Petitioner contends “no formal claim construction is necessary in this proceeding.” Pet. 10; Reply 1, 4. Patent Owner contends the terms “mesh layer” and “coefficient of friction” require construction. Prelim. Resp. 14–16; Sur-reply 2–5. We have considered the parties’ arguments and discuss them below with regard to each of the terms Patent Owner contends should be construed. Because our determination that Petitioner demonstrates at least one challenged claim meets the threshold for institution (see SAS Inst., 138 S. Ct. at 1359–60) is not based on construing the term “mesh layer” or “coefficient of friction,” we determine we need not construe either claim term at this stage of the proceeding. 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) (“[O]nly those terms need be construed that are in controversy, and only to the extent necessary to resolve the controversy.”)). As further discussed below, we invite the parties to address claim construction at trial.” slip op. at 9
- Claim Construction › Intrinsic evidence (Phillips canons) › Specification disavowal / 'present invention' languageDisclaimer not foundDecided for petitioner
“We agree with Petitioner that the ’854 patent specification does not include clear and explicit lexicography or a disclaimer that would support requiring “coefficient of friction” to be determined by a specific ASTM test method. The portion of the specification Patent Owner asserts as a definition of “coefficient of friction” (see Ex. 1001, 11:31–42) is a description of an embodiment; we find it does not express patentee intent to redefine the term. Further, the statement that “the coefficient of friction … may be determined using the … ASTM D1894 standard test method” (id. at 11:32–35) indicates that use of that specific test method is optional. Accordingly, in the absence of patentee lexicography or disavowal, we do not limit the scope of the term “coefficient of friction” to require that it be measured by a specific ASTM standard. Luminara Worldwide, LLC v. Liown Elecs. Co., 814 F.3d 1343, 1353 (Fed. Cir. 2016) (“Absent lexicography or disavowal, we do not depart from the plain meaning of the claims.”); In re Am. Acad. Of Sci. Tech Ctr., 367 F.3d 1359, 1369 (Fed. Cir. 2004) (“We have cautioned against reading limitations into a claim from the preferred embodiment described in the specification, even if it is the only embodiment described, absent clear disclaimer in the specification.”). We note that the ’854 patent specification sets forth a definition for the coefficient of friction between the surfaces of the mesh material and the slide surface. Ex. 1001, 4:38–46. As stated above, however, we do not expressly construe any claim term at this stage of the proceeding. Should the parties address the construction of “coefficient of friction” at trial, we will make a determination after the close of evidence and any hearing.” slip op. at 13
Claim construction§ 102 anticipation§ 103 obviousness§ 112 disclosureDiscretionary denialcites KSR · GrahamPatents in suitUS 11,998,854 - 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 - Posco Co., Ltd. v. ArcelormittalInstitutedPTAB · Mar 18, 2025 · IPR2024-01377 · APJ Brian D Range · IPR · Institution
The Board instituted IPR on claims 1–25 on all petitioned grounds, finding a reasonable likelihood of success, including that GMW14400 likely qualifies as prior art.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“review pursuant to 35 U.S.C. § 6(b). Under 35 U.S.C. § 314(a), an inter partes review may not be instituted unless the information presented in the petition “shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” The Board determines whether to institute a trial on behalf of the Director. 37 C.F.R. § 42.4(a). The following findings of fact and conclusions of law are not final, but are made for the sole purpose of determining whether Petitioner meets the threshold for initiating review. Any final decision shall be based on the full trial record, including any response timely filed by Patent Owner. Any arguments not raised by Patent Owner in a timely-filed response may be deemed waived. For the reasons stated below, we determine that Petitioner has established a reasonable likelihood that it would prevail with respect to at least one claim. We hereby institute an inter partes review as to claims 1–25 of the ’227 patent based upon Petitioner’s asserted grounds of unpatentability.” slip op. at 2
- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Denied
“efficiency and integrity of the system are best served by denying or instituting review.” Fintiv at 6. Here, Fintiv factors one and five are neutral, factors two and three favor discretionary denial, factor four strongly weighs against discretionary denial, and favor six weighs against discretionary denial. The integrity of the system will benefit from institution because of the strong merits the Petition presents (factor six), and the ITC Investigation will not resolve these merits (factor four). This outweighs any potential inefficiency as indicated by factors two and three. We further note that any inefficiency in resolving the grounds the Petition presents is mitigated by the stay of the district court action (factor one). We, thus, decline to exercise discretionary denial under 35 U.S.C. § 314(a).” slip op. at 17
- PTAB / AIA Trials › Discretionary denial › §325(d) same art / argumentsDenied
“After considering the record as a whole, we determine that Petitioner has adequately demonstrated that the Office erred in a manner material to the patentability of challenged claims. As we explain in Section III(G), infra, Petitioner’s challenges to the ’227 patent appear strong based on the current record, and Patent Owner’s present arguments to the contrary are weak. Given the strength of Petitioner’s challenges on the present record, this is not a situation where we would say that “reasonable minds can disagree regarding the purported treatment of the art,” and we therefore determine that the Examiner erred by not considering the art in substantially the combination Petitioner proposes. Where Patent Owner states that “evidence that the Examiner did not consider these references in combination” is lacking (PO Sur-Reply 5), we disagree. If the Examiner considered these references in combination, the Examiner would have, given the apparent strength of Petitioner’s position on the merits on this record, issued a rejection. The lack of a rejection based on the combination proposed in the Petition provides some evidence that the Examiner did not consider these references in combination (because the lack of such a rejection raises the likelihood that the Examiner did not make such a consideration). 3. Conclusion Because Petitioner adequately made a showing of material error, we decline to exercise discretion not to institute inter partes review under 35 U.S.C. § 325(d). See Advanced Bionics, LLC, IPR2019-01469, Paper 6 at 8–9.” slip op. at 19
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“For purposes of this Decision, we do not discern a need to construe explicitly any claim language because doing so would have no effect on our analyses below of Petitioner’s asserted grounds and will not assist in resolving the present controversy between the parties. 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 10
Claim construction§ 102 anticipation§ 103 obviousnessDiscretionary denialcites Phillips · KSR · GrahamPatents in suitUS 11,326,227 - Posco Co., Ltd. v. ArcelormittalInstitutedPTAB · Mar 18, 2025 · IPR2024-01376 · APJ Brian D Range · IPR · Institution
The Board instituted review of claims 1–30 on all petitioned grounds, finding a reasonable likelihood of success, including that GMW14400 likely qualifies as prior art.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“IV. CONCLUSION For the reasons above, we determine that the information presented in the Petition establishes that there is a reasonable likelihood that Petitioner would prevail with respect to challenged claims 1–30 of the ’602 patent. At this juncture in the proceeding, we have not made a final determination with respect to the patentability of the challenged claims, or with respect to claim construction. V. ORDER For the foregoing reasons, it is ORDERED that pursuant to 35 U.S.C. § 314(a), an inter partes review of claims 1–30 of the ’602 patent is hereby instituted with respect to all grounds of unpatentability set forth in the Petition; and” slip op. at 36
- PTAB / AIA Trials › Discretionary denial › Fintiv (parallel litigation)Institution denied fintivDenied
“efficiency and integrity of the system are best served by denying or instituting review.” Fintiv at 6. Here, Fintiv factors one and five are neutral, factors two and three favor discretionary denial, factor four strongly weighs against discretionary denial, and favor six weighs against discretionary denial. The integrity of the system will benefit from institution because of the strong merits the Petition presents (factor six), and the ITC Investigation will not resolve these merits (factor four). This outweighs any potential inefficiency as indicated by factors two and three. We further note that any inefficiency in resolving the grounds the Petition presents is mitigated by the stay of the district court action (factor one). We, thus, decline to exercise discretionary denial under 35 U.S.C. § 314(a).” slip op. at 17
- PTAB / AIA Trials › Discretionary denial › §325(d) same art / argumentsInstitution denied 325dDenied
“After considering the record as a whole, we determine that Petitioner has adequately demonstrated that the Office erred in a manner material to the patentability of challenged claims. As we explain in Section III(G), infra, Petitioner’s challenges to the ’602 patent appear strong based on the current record, and Patent Owner’s present arguments to the contrary are weak. Given the strength of Petitioner’s challenges on the present record, this is not a situation where we would say that “reasonable minds can disagree regarding the purported treatment of the art,” and we therefore determine that the Examiner erred by not considering the art in substantially the combination Petitioner proposes. Where Patent Owner states that “evidence that the Examiner did not consider these references in combination” is lacking (PO Sur-Reply 5), we disagree. If the Examiner considered these references in combination, the Examiner would have, given the apparent strength of Petitioner’s position on the merits on this record, issued a rejection. The lack of a rejection based on the combination proposed in the Petition provides some evidence that the Examiner did not consider these references in combination (because the lack of such a rejection raises the likelihood that the Examiner did not make such a consideration). 3. Conclusion Because Petitioner adequately made a showing of material error, we decline to exercise discretion not to institute inter partes review under 35 U.S.C. § 325(d). See Advanced Bionics, LLC, IPR2019-01469, Paper 6 at 8–9.” slip op. at 19
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“For purposes of this Decision, we do not discern a need to construe explicitly any claim language because doing so would have no effect on our analyses below of Petitioner’s asserted grounds and will not assist in resolving the present controversy between the parties. 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 10
Claim construction§ 102 anticipation§ 103 obviousnessDiscretionary denialcites Phillips · KSR · GrahamPatents in suitUS 10,961,602 - PTAB · Mar 12, 2025 · IPR2024-01458 · APJ Julia Heaney · IPR · Institution
The Board instituted IPR of claims 1, 7, 8, and 11 on all asserted grounds, finding a reasonable likelihood of unpatentability on at least one claim.
RulingsInstitution decision- PTAB / AIA Trials › Institution threshold (reasonable likelihood / more likely than not)InstitutedInstituted
“information presented in the petition . . . shows that there is a reasonable likelihood that the petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” 35 U.S.C. § 314(a). Upon consideration of the Petition in view of the record at this stage, we determine that Petitioner has established a reasonable likelihood that it would prevail in showing the unpatentability of at least one claim challenged in the Petition. Accordingly, we grant institution of an inter partes review of all claims and all grounds asserted in the Petition.1” slip op. at 2
- Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededOther
“Patent Owner’s construction of the claims as informed by its allegations of infringement in co-pending litigation, as best Petitioner is able to understand such allegations.” Pet. 18 (citing Exs. 1016–1017). Petitioner does not propose construction of any claim term at this stage of the proceeding. Upon review of the record, we determine that no claim terms require express construction for purposes of this Decision. 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 7
- Skill levelSkill level petitioner adoptedDecided for petitioner
“would possess at least a Bachelor’s degree in mechanical engineering, electrical engineering, industrial design or product design or product design engineering, chemistry, or physics, or a related field, and at least three to four years of industry experience, or a Master’s degree in mechanical engineering, electrical engineering, industrial design or product design or product design engineering, chemistry, or physics, or a related field, and at least one to two years of industry experience. Pet. 15 (citing Ex. 1003 ¶ 18). Petitioner further argues a “POSA would have been familiar with electrically powered cigarettes and their components and underlying technologies or similar components and technologies.” Id. For purposes of this decision, we adopt Petitioner’s definition of the level of ordinary skill in the art because it is consistent with the ’788 patent and the asserted prior art.” slip op. at 8
- Obviousness (§103) › Motivation to combine / reasonable expectation of successMotivation foundReasonable expectation foundInstituted
“second chamber. Pet 55 (citing Ex. 1005 ¶ 20, Fig. 1a). Petitioner concedes Lee does not disclose a bulb containing a heating wire, but contends this would have been obvious at least in view of Gilbert. Id. at 56 (referring to Pet. 41–42, citing Ex. 1004, 2:45–46, 2:50, 2:71–3:2, Fig. 2). Petitioner contends a person of ordinary skill in the art would have been motivated to explore other types of heating elements than the nichrome wire described in Lee due to issues with e-cigarettes at the time, such as metallic taste or inhalation risks associated with the use of a metal wire heating element. Id. at 57 (citing Ex. 1003 ¶ 117). Petitioner contends it was known to use bulb heaters for vaporizing fluids for almost 100 years (id. ¶¶ 117–118), and therefore a person of ordinary skill would have been motivated to implement a heating element within a glass bulb in Lee’s device to address the metal taste and inhalation risk issues. Pet. 57. Petitioner further contends a person of ordinary skill in the art would have been motivated to implement a heating element within a glass bulb to increase the life of the heating element and prevent failure of the device, because Levin teaches that directly contacting the heating element was known to reduce the life of the heating element, and discloses a heater bulb for vaporizing an active ingredient for inhalation by the user. Id. at 58–59 (citing Ex. 1009 ¶¶ 4, 49, 56). In view of the foregoing, we determine Petitioner has demonstrated sufficiently for purposes of institution that the combination of Lee, Gilbert, and Levin teaches or suggests limitation [1d], and that a person of ordinary skill in the art would have had reason to use Gilbert’s or Levin’s bulb heater in Lee’s electronic cigarette, with a reasonable expectation of success.” slip op. at 14
Claim construction§ 103 obviousnesscites KSR · GrahamPatents in suitUS 9,538,788
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.