• Dr. Reddy’S Laboratories, Inc. v. Genentech, Inc., Hoffman-La Roche AG, And Abbvie Inc.Instituted
  PTAB · Apr 19, 2023 · IPR2023-00052 · APJ Jeffrey N Fredman · IPR · Institution

  The Board instituted review on all challenged claims and the sole anticipation ground: claims 1–4, 8–14, and 18–26, with a reasonable likelihood of unpatentability except claim 19.

  RulingsInstitution decision

  • PTAB / AIA Trials › Discretionary denialInstitutedDenied

    “This case differs from other situations where the Board has exercised discretion under § 314(a) to deny institution. For example, we are not presented with a later-filed petition after having considered an earlier-filed petition challenging the same patent. See, e.g., General Plastic Indus. Co., Ltd. v. Canon Kabushiki Kaisha, IPR2016-01357, Paper 19, 6–11, 15–22 (PTAB Sept. 6, 2017) (precedential)). This is the first petition filed against this patent and contains only a single ground. Also, as Petitioner asserts, and Patent Owner does not contest, the Fintiv factors are neutral or favor institution. See Pet. 61–63. Instead, Patent Owner asks us to deny institution because Petitioner” slip op. at 10

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

    “We have authority under 35 U.S.C. § 6 and 35 U.S.C. § 314, which provides that 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.” A decision to institute under § 314 may not institute on fewer than all claims challenged in the petition. SAS Inst., Inc. v. Iancu, 138 S. Ct. 1348, 1359–60 (2018). In addition, if the Board institutes trial, it will “institute on all grounds in the petition.” PTAB Consolidated Trial Practice Guide, 5–6 (Nov. 2019); see also PGS Geophysical AS v. Iancu, 891 F.3d 1354, 1360 (Fed. Cir. 2018) (interpreting the statute to require “a simple yes-or-no institution choice respecting a petition, embracing all challenges included in the petition”). Having considered the arguments and evidence presented in the Petition and the Preliminary Response, for the reasons described below, we institute inter partes review.” slip op. at 2

  • Skill levelSkill level patent owner adoptedDecided for patent owner

    “VIII. LEVEL OF ORDINARY SKILL IN THE ART Petitioner asserts A person of ordinary skill in the art (“POSA”) in the field of the patent between 2012 and 2021 would have held an MD with experience in clinical oncology or pharmacology; a PhD in pharmacology, pharmaceutical chemistry, cancer biology, or a related discipline; or a PharmD with experience in clinical oncology. Ex. 1020 ¶ 29. A POSA would also have practical working knowledge of oncology (Ex. 1020 ¶ 29) and experience with the design of studies necessary for drug development. This description is approximate, and additional experience could make up for less education and vice versa. Ex. 1020 ¶ 29. Pet. 15–16. Patent Owner asserts “that a POSA for purposes of the ’087 Patent would have had at least an M.D. and several years of experience treating patients with hematological malignancies (i.e., blood cancers).” Prelim. Resp. 13. Patent Owner asserts “Petitioner’s definition fails to require experience specific to hematological malignancies or blood cancers. Patent Owners’ definition of a POSA, on the other hand, accounts for the claims’ focus on lymphoma and leukemia.” Id. at 14. At this stage in the proceeding, we find that Patent Owner’s analysis more precisely establishes the level of ordinary skill in the art as it directly relates to those deciding prescribing information based on the prior art reference. See Ex. 1011, 2. The level of ordinary skill in the art usually is evidenced by the prior art references themselves. See Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001); In re GPAC Inc., 57 F.3d 1573, 1579 (Fed. Cir. 1995).” slip op. at 5

  • Disclosure Requirements (§112) › Written description (Ariad)Entitled to earlier dateNot entitled to earlier dateMixed

    “reasonable likelihood that claims 1 and 9 are not entitled benefit of priority to the ’087 or earlier priority Specifications prior to the publication of the November 2018 Venclexta label. Claim 1, for example, recites a GDC-0199 dosing regimen “compris[ing] a dose of 100 mg of GDC-0199 per day, followed by orally administering to the patient a dose of 200 mg of GDC- 0199 per day, followed by orally administering to the patient a dose of 400 mg of GDC-0199 per day.” This disclosure is not found in a single example, but must be selected from disparate parts of the Specification. “The written description requirement is not met when, as here, the specification provides at best disparate disclosures that an artisan might have been able to combine in order to make the claimed invention.” Flash-Control, LLC v. Intel Corp., 2021 WL 2944592 4 (Fed Cir. 2021) (citing Ariad, 598 F.3d at 1352.)” slip op. at 22

  § 102 anticipation§ 112 disclosureDiscretionary denial
  Patents in suitUS 11,110,087
• Restem, LLC. v. Jadi Cell, LLCNo claims unpatentable
  PTAB · Apr 18, 2023 · IPR2021-01535 · APJ Devon Zastrow Newman · IPR · Final written decision

  Claims 1–15 were not proven unpatentable: Majore did not anticipate claims 1–13 and 15, and the asserted obviousness combinations did not establish the claimed limitations.

  RulingsFinal written decision

  • Expert testimonyPetitioner expert discountedDecided for patent owner

    “Ex. 1007 ¶¶ 132, 133. Importantly, however, Dr. Olson does not cite anything to support his opinion that the ordinary artisan would have known that MSCs could be cultured to be renewable from subepithelial UC tissue. Nor does Dr. Olson explain why the artisan would have had this understanding aside from simply stating it. Majore uses the word “subepithelial” only once to explain that primitive stem cells are “distributed in subepithelial and intervascular regions,” but this does not teach what Dr. Olson asserts. Accordingly, Dr. Olson’s testimony is entitled to little weight. Xerox Corp., IPR2022-00624, Paper 9 at 15–16 (finding that an expert’s conclusory assertions that repeat the proposition for which they are offered without “any additional supporting evidence or provide any technical reasoning” in support are “conclusory and unsupported, add[] little to the conclusory assertion[s] for which [they are] offered to support, and is” slip op. at 52

  • Claim Construction › Intrinsic evidence (Phillips canons) › Preamble limiting or notPreamble limitingDecided for patent owner

    “21 The parties do not dispute that the preamble’s recitation of “isolated cell” serves as a limitation to claim 1 as it provides antecedent basis for its recitation later in the body of the claim. Accordingly, we treat the preamble as limiting. “When limitations in the body of the claim rely upon and derive antecedent basis from the preamble, then the preamble may act as a necessary component of the claimed invention.” See Eaton Corp. v. Rockwell Int’l Corp., 323 F.3d 1332, 1339 (Fed. Cir. 2003).” slip op. at 31

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

    “[JUDGE NEWMAN:] So if -- if the comparison is possible, why did you not present evidence of that comparison? MR. FITZPATRICK: We --we’ve had the -- we had this discussion with our -- with our expert, and our conclusion was that it’s just not -- it wasn’t necessary. The conclusion was that the -- the evidence that’s in the -- in the prior art references, including the fact that it clearly practices the exact same steps as the claims, that was sufficient to -- and would anticipate or render obvious the claims. That’s the only reason we didn’t present evidence -- our own evidence.” slip op. at 38

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

    “Ex. 1007 ¶ 168 (alteration in original). We agree that an ordinary artisan would be motivated to look to the teachings of analogous references for information, but to establish obviousness, a party must show that “there was an apparent reason to combine the known elements in the fashion claimed by the patent at issue.” KSR, 550 U.S. at 418 (citing In re Kahn, 441 F.3d 977, 988 (Fed. Cir. 2006) (requiring “articulated reasoning with some rational underpinning to support the legal conclusion of obviousness”)). Petitioner has not provided sufficient rationale to explain why the ordinary artisan would have been motivated to make the isolated cell with the specific marker profile or why the artisan would have looked to the cited references themselves out of the wide range of references available in the art.” slip op. at 64

  Patent outcomesUS 9,803,176 not shown unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites KSR · Graham
  Patents in suitUS 9,803,176
• Hope Medical Enterprises, Inc. v. Oregon Health & Science UniversityOther
  PTAB · Apr 18, 2023 · IPR2022-00123 · APJ Zhenyu Yang · IPR · Final written decision

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

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

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

  • Expert testimonyPetitioner expert creditedPatent owner expert discountedDecided for petitioner

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

  • 112 supportMotion to amend, deniedDenied

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

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

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

  § 103 obviousness§ 112 disclosurecites Phillips
  Patents in suitUS 10,596,190
• Bausch & Lomb Incorporated v. Zeavision, LLCAll claims unpatentable
  PTAB · Apr 10, 2023 · IPR2022-00089 · APJ Tina E Hulse · IPR · Final written decision

  Claims 12–14, 16–21, 23, and 24 are unpatentable: Lang anticipates some claims, and the asserted Lang-based combinations render all challenged claims obvious.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “In our Institution Decision, we adopted Petitioner’s definition (Dec. Inst. 6–7), which Patent Owner states that it “does not contest.” PO Resp. 17. Because the parties do not dispute the level of ordinary skill in the art, we adopt Petitioner’s definition as consistent with the prior art’s demonstration of the level of ordinary skill in the art at the time of the invention. 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))). Moreover, we find that Dr. Johnson and Dr. Dorey are both qualified to opine from the perspective of a skilled artisan as both are persons of at least ordinary skill in the art. See Ex. 1024 ¶¶ 2–11, App’x A; Ex. 2001 ¶¶ 4–14, App’x A; see also Kyocera Senco Indus. Tools Inc. v. Int’l Trade Comm’n, 22 F. 4th 1369, 1376–77 (Fed. Cir. 2022) (“To offer expert testimony from the perspective of a skilled artisan in a patent case—like for claim construction, validity, or infringement—a witness must at least have ordinary skill in the art.”).” slip op. at 7

  • Claim Construction › Intrinsic evidence (Phillips canons) › Preamble limiting or notPreamble limitingDecided for petitioner

    “Similarly, here, the Specification consistently states that the invention relates to oral formulations for protecting eye health and that the benefits of carotenoids, such as zeaxanthin and lutein, include the ability to absorb UV and blue light. See, e.g., Ex. 1001, Abstract (“Oral formulations for promoting eye health”), 4:25–31 (stating carotenoids such as zeaxanthin are “very good at absorbing ultraviolet (UV) and blue light”), 15:45–47 (“one object of this invention is to disclose multi-component orally-ingestible formulations for protecting eye health in mammals”). Like the preamble in Proveris, the preamble in claim 12 is the only reference in any of the independent claims to the allegedly inventive concept of protecting eye health from the harmful effects of blue light. Proveris, 739 F.3d at 1373. Moreover, the preamble of claim 12 recites: “A nutrient formulation for oral ingestion for protecting a user’s eyes from the harmful effect of blue light, the formulation comprising:.” Ex. 1001, 37:13–15. The body of claim from the group consisting of capsules, tablets, liquids, and powders for oral ingestion.” Ex. 1001, 37:22–24 (emphasis added). Similarly, claim 22, which depends from claim 12, relies on the preamble of claim 12 for antecedent basis for the limitation “wherein the user has macular degeneration and a lens-related disorder.” Id. at 38:21 (emphasis added). Thus, “the nutrient formulation” and “the user” in the claim body derives antecedent basis from the “nutrient formulation” and “user” that is “defined in greater detail in the preamble.” See Proveris, 739 F.3d at 1373. Accordingly, reading the patent as a whole, because the inventor clearly relied on both the preamble and the body of claim 12 to define the claimed invention, the preamble of claim 12 should be construed as limiting. See id.” slip op. at 10

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Term construed petitioner constructionDecided for petitioner

    “stereoisomers” should have its plain and ordinary meaning, and a person of ordinary skill in the art would understand this term to mean that the zeaxanthin that is present in the 3R-3R' stereoisomer form is “largely but not wholly free of meso-zeaxanthin stereoisomers.” Pet. 19 (citing Ex. 1024 ¶ 57, Ex. 1031, 3). Petitioner also contends the term “mixed tocopherols” should be construed to mean “a mixture of tocopherols such as alpha-, beta-, gamma-, and delta-tocopherols.” Pet. 22–24 (citing Ex. 1024 ¶¶ 65–66). Patent Owner does not address either of these claim terms in its Response. See generally PO Resp. Because there does not appear to be any dispute over the construction of these terms, we adopt Petitioner’s proposed constructions as they are consistent with the plain and ordinary meaning of the terms. See Wellman, terms need only be construed ‘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 11

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

    “2. Analysis Anticipation requires that “each and every element as set forth in the claim is found, either expressly or inherently described, in a single prior art omitted). “To establish inherency, the extrinsic evidence ‘must make clear that the missing descriptive matter is necessarily present in the thing described in the reference, and that it would be so recognized by persons of ordinary skill.’” Id. (citation omitted). Moreover, to anticipate, a prior art reference must “disclose[] within the four corners of the document not only all of the limitations claimed but also all of the limitations arranged or combined in the same way as recited in the claim.” Net MoneyIN, Inc. v. Verisign, Inc., 545 F.3d 1359, 1371 (Fed. Cir. 2008).” slip op. at 13

  Patent outcomesUS 10,307,384 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousness§ 112 disclosurecites Phillips · KSR · Graham
  Patents in suitUS 10,307,384
• Abiomed, Inc. v. White Swell Medical Ltd.All claims unpatentable
  PTAB · Apr 4, 2023 · IPR2021-01565 · APJ Robert A Pollock · IPR · Final written decision

  Claims 1–24 are unpatentable: claims 1–10, 12–22, and 24 as anticipated by Kaiser, and claims 1–24 as obvious under the listed grounds.

  RulingsFinal written decision

  • Skill levelSkill level board ownDecided for petitioner

    “Considering argument and evidence of record, we define a person of ordinary skill in the art as a member of a multidisciplinary team consisting of at least (1) a person (“Engineer POSA”) with either (a) a bachelor’s or master’s degree in mechanical engineering, biomedical engineering or a similar field, as well as two or more years of work experience with catheters or similar medical devices, or (b) a Ph.D. in mechanical or biomedical engineering, or in a similar field; working with (2) a person with an M.D. or analogous degree and five or more years of work experience in interventional cardiology, hemodynamics or a similar discipline (“Clinician POSA”); or an Engineer POSA receiving assistance from a Clinician POSA; or a Clinician POSA receiving assistance from an Engineering POSA; or a single person with the qualifications of both an Engineer POSA and a Clinician POSA. With respect to the parties’ proffered declarants, the record before us demonstrates that Dr. Day and Dr. Garcia are individually well-qualified to opine as to the perspective of an Engineer POSA and a Clinician POSA, respectively; and collectively qualified to opine from the perspective of one of ordinary skill in the art as to all aspects of the claimed invention and relevant prior art. See, e.g., Ex. 1002 ¶¶ 3–15; Ex. 1003 (Dr. Day’s curriculum vitae); Ex. 1004 ¶¶ 4–15; Ex. 1005 (Dr. Garcia’s curriculum vitae). With respect to Patent Owner’s declarant, Dr. Brecker’s experience and credentials as an interventional cardiologist amply qualify him to speak to the perspective of one of ordinary skill in the art as a Clinician POSA. See Ex. 2005 ¶¶ 4–15, Exhibit A. But because there is no evidence that he is an Engineering POSA, or receiving assistance from an Engineering POSA, we accord less weight to his opinions as they relate to the province of an Engineer POSA. See Kyocera Senco Indus. Tools Inc. v. ITC, 22 F.4th 1369, 1377–78 (Fed. Cir. 2022) (holding that “to be qualified to offer expert testimony on issues from the vantage point of an ordinarily skilled artisan in a patent case, an expert must at minimum possess ordinary skill in the art”). C.” slip op. at 32

  • Expert testimonyPetitioner expert creditedPatent owner expert discountedMixed

    “demonstrates that Dr. Day and Dr. Garcia are individually well-qualified to opine as to the perspective of an Engineer POSA and a Clinician POSA, respectively; and collectively qualified to opine from the perspective of one of ordinary skill in the art as to all aspects of the claimed invention and relevant prior art. See, e.g., Ex. 1002 ¶¶ 3–15; Ex. 1003 (Dr. Day’s curriculum vitae); Ex. 1004 ¶¶ 4–15; Ex. 1005 (Dr. Garcia’s curriculum vitae). With respect to Patent Owner’s declarant, Dr. Brecker’s experience and credentials as an interventional cardiologist amply qualify him to speak to the perspective of one of ordinary skill in the art as a Clinician POSA. See Ex. 2005 ¶¶ 4–15, Exhibit A. But because there is no evidence that he is an Engineering POSA, or receiving assistance from an Engineering POSA, we accord less weight to his opinions as they relate to the province of an Engineer POSA. See Kyocera Senco Indus. Tools Inc. v. ITC, 22 F.4th 1369, 1377–78 (Fed. Cir. 2022) (holding that “to be qualified to offer expert testimony on issues from the vantage point of an ordinarily skilled artisan in a patent case, an expert must at minimum possess ordinary skill in the art”). C.” slip op. at 32

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

    “activating and adjusting restrictors based on pressure readings to achieve and then maintain target venous blood pressures.” Pet. Sup. Reply 2 (citing Ex. 1001, 15:33–36, 15:36–16:42, Fig. 11A). Implicit in the above analysis, and as expressly discussed at pages 11–12 of the Reply, which we adopt, we understand “maintaining” to refer to keeping intravascular pressure at a target level or range, which may be lower than a normal body pressure. Cf. POR 31–32 (Patent Owner’s argument that “maintaining” is limited to non-hypotensive (i.e., substantially normal) systemic pressure). In view of the above, we adopt and apply Petitioner’s proposed construction of “maintaining intravascular pressure,” to mean “maintaining pressure within blood vessels or a blood vessel.” Our construction is not limited to maintaining a physiologically normal systemic pressure, and encompasses maintaining regions of low pressure in portions of the venous system between occlusion devices, or in the vicinity of one or more occlusion devices. We need not further define the meets and bounds of this term to resolve any dispute between the parties or decide the merits of Petitioner’s challenge. D.” slip op. at 44

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

    “Although Kaiser exemplifies in detail a method involving IVC occlusion, its disclosure makes clear that the method is also applicable to the SVC. See, e.g., Ex. 1007, 6:60–64 (“the adjustable component may create a pressure gradient by . . . adjusting blood flow impedance through the superior vena cava”), 5:64–6:2 (disclosing “systems and methods may be provided to create a pressure differential” using “balloons . . . to increase a pressure drop through the . . . superior vena cava”), Claim 5 (reciting a “flow impedance device implantable within a patient’s inferior vena cava”), Claim 17 (“The method of claim 10, wherein the body lumen within which the adjustable component is positioned is . . . a superior vena cava.”), 6:31–36 (positioning pressure sensor in the superior vena cava); see also Ex. 1010, 19–22 (claims of provisional application directed to reducing blood flow through the superior vena cava); see also Pet. 29–34, 36–39; Reply 14–16; Ex. 1002 ¶¶ 152–153, 156–159, 165, 167–176 (Dr. Day’s testimony regarding the SVC positioning elements). Considering the arguments and evidence of record, including our own reading of Kaiser (see supra Section I.I.1), we find that Kaiser expressly discloses the contested element of Ground 1 relating to use of the restrictor in the SVC.” slip op. at 47

  Patent outcomesUS 10,639,460 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 10,639,460
• Abiomed, Inc. v. White Swell Medical Ltd.All claims unpatentable
  PTAB · Apr 4, 2023 · IPR2021-01564 · APJ Robert A Pollock · IPR · Final written decision

  Claims 1–24 are unpatentable: claims 1, 3–13, and 15–24 are anticipated by Gelfand, and claims 1–24 are also obvious under Grounds 2–8.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedPetitioner expert creditedDecided for petitioner

    “Considering argument and evidence of record, we define a person of ordinary skill in the art as a member of a multidisciplinary team consisting of at least (1) a person (“Engineer POSA”) with either (a) a bachelor’s or master’s degree in mechanical engineering, biomedical engineering or a similar field, as well as two or more years of work experience with catheters or similar medical devices, or (b) a Ph.D. in mechanical or biomedical engineering, or in a similar field; working with (2) a person with an M.D. or analogous degree and five or more years of work experience in interventional cardiology, hemodynamics or a similar discipline (“Clinician POSA”); or an Engineer POSA receiving assistance from a Clinician POSA; or a Clinician POSA receiving assistance from an Engineering POSA; or a single person with the qualifications of both an Engineer POSA and a Clinician POSA. With respect to the parties’ proffered declarants, the record before us demonstrates that Dr. Day and Dr. Garcia are individually well-qualified to opine as to the perspective of an Engineer POSA and a Clinician POSA, respectively; and collectively qualified to opine from the perspective of one of ordinary skill in the art as to all aspects of the claimed invention and relevant prior art. See, e.g., Ex. 1002 ¶¶ 3–15; Ex. 1003 (Dr. Day’s curriculum vitae); Ex. 1004 ¶¶ 4–15; Ex. 1005 (Dr. Garcia’s curriculum vitae). With respect to Patent Owner’s declarant, Dr. Brecker’s experience and credentials as an interventional cardiologist amply qualify him to speak to the perspective of one of ordinary skill in the art as a Clinician POSA. See Ex. 2005 ¶¶ 4–15, Exhibit A. But because there is no evidence that he is an Engineering POSA, or receiving assistance from an Engineering POSA, we accord less weight to his opinions as they relate to the province of an Engineer POSA. See Kyocera Senco Indus. Tools Inc. v. ITC, 22 F.4th 1369, 1377–78 (Fed. Cir. 2022) (holding that “to be qualified to offer expert testimony on issues from the vantage point of an ordinarily skilled artisan in a patent case, an expert must at a minimum possess ordinary skill in the art”).” slip op. at 31

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

    “normal intravascular pressure at or near the region of intervention. To the contrary, the Specification repeatedly discloses the creation and maintenance of low-pressure zones at or near the catheter apparatus restrictors during the course of treatment. See, e.g., Ex. 1001, 15:33–36 (“control module 200 can include multiple feedback loops to adjust performance of the system 10 to create and maintain a low pressure zone while the lymphatic fluid is cleared”) (emphasis added), 13:2–7 (“A pressure sensing lumen, which is positioned proximately to the catheter suction port within the isolated area, can be used to control the rate of suction by maintaining the pressure of the isolated area between about 2–5 mmHg and thus prevent collapse of the thoracic duct due to excessive suction and ensure optimized lymph drainage.”) (emphasis added), 17:52–63 (“[T]he pressure gradient across the proximal restriction is achieved by the pressure reduction within the area between the two restrictions. Actuation of the pump helps to create a low pressure zone in the vicinity of the junction of the jugular vein and the subclavian vein by withdrawing fluid in this region, recirculating it through the pump, and discharging the fluid downstream of this region. Because the outflow of the thoracic and lymphatic ducts is located in this region, the lower pressure will facilitate drainage of lymphatic fluid.”) (emphases added). Accordingly, we agree with Petitioner that the ’460 Patent “teaches activating and adjusting restrictors based on pressure readings to achieve and then maintain target venous blood pressures.” Pet. Sup. Reply 2 (citing Ex. 1001, 15:33–36, 15:36–16:42, Fig. 11A). Implicit in the above analysis, and as expressly discussed at pages 11–12 of the Reply, which we adopt, we understand “maintaining” to refer to keeping intravascular pressure at a target level or range, which may be lower than a normal body pressure. Cf. POR 31–32 (Patent Owner’s argument that “maintaining” is limited to non-hypotensive (i.e., substantially normal) systemic pressure). In view of the above, we adopt and apply Petitioner’s proposed construction of “maintaining intravascular pressure,” to mean “maintaining pressure within blood vessels or a blood vessel.” Our construction is not limited to maintaining a physiologically normal systemic pressure, and encompasses maintaining regions of low pressure in portions of the venous system between occlusion devices, or in the vicinity of one or more occlusion devices. We need not further define the meets and bounds of this term to resolve any dispute between the parties or decide the merits of Petitioner’s challenge. D.” slip op. at 43

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

    “Considering the posture of this case, it is Patent Owner’s burden to overcome the presumption that Gelfand is enabled. See, e.g., Amgen, 314 F.3d at 1354–55. This requirement is not excused in IPR proceedings. See Apple Inc. v. Corephotonics, Ltd., 861 F. App’x 443, 450 (Fed. Cir. 2021) (“[R]egardless of the forum, prior art patents and publications enjoy a presumption of enablement, and the patentee/applicant has the burden to prove nonenablement for such prior art.”). Considering all the argument and evidence of record, we find that Patent Owner has not overcome the presumption with respect to Gelfand for at least the reasons set forth on pages 13–25 of Petitioner’s Reply, which we adopt in full and briefly summarize below.” slip op. at 48

  • Expert testimonyPetitioner expert creditedPatent owner expert discountedDecided for petitioner

    “On this record, we find persuasive Dr. Day’s testimony that, “there is no functional difference between the SVC and the IVC that would preclude a catheter from functioning once in the SVC.” Ex. 2006, 73:21–74:5; see also Ex. 1002 ¶ 134 (the “methods of balloon activation and operation are the same regardless of whether the occlusion balloon is placed in the SVC or the IVC”). We likewise find persuasive Dr. Day’s testimony that, “Gelfand’s methods, systems and devices . . . could be used in the SVC without any substantial modification other than the catheter potentially being inserted into a vein upstream of the SVC.” Ex. 1002 ¶¶ 122–126; see also id. ¶¶ 130– 134 (similar testimony specific to element [1e]); Ex. 2006, 93:11–99:16, 71:7–78:15, 86:13–87:19, 88:14–90:9, 97:10–13. But to the extent Gelfand’s device needed to be modified, we find persuasive Dr. Day’s testimony that an Engineer POSA would have found such modifications “routine.” Ex. 2006, 205:8–212:21 (“they’re just different variants or dimensions of the invention”). We, likewise, find persuasive Dr. Garcia’s testimony that “Gelfand discloses occluding the SVC or IVC with a balloon catheter device to reduce blood flow to the heart. Gelfand’s catheter is a type of Swan-Ganz catheter, a commonly used catheter with which I and other clinicians are very familiar, and Gelfand discloses that its catheter can be inserted and placed using conventional techniques.” Ex. 1004 ¶ 60; see also Ex. 1006 ¶¶ 27–31 (Dr. Day’s overview of therapeutic balloon catheters). Referencing Dr. Day’s testimony, Dr. Garcia further states that [f]rom a clinician’s perspective, there would have been no difference in using Gelfand’s device to partially occlude the SVC and in using it to fully occlude the SVC. The device would simply have been inserted percutaneously, advanced so that the balloon is in the SVC, and then operated to inflate the balloon to the inner diameter of the SVC. Id. ¶ 127; see also id. ¶¶ 81–83, 127 (detailed explanation of why one of ordinary skill in the art would know how “to place the occlusion balloon in the SVC as taught by Gelfand”). As further noted by Petitioner, “Garcia explained that Gelfand discloses, and a POSA would know, that a modified Swan-Ganz catheter like Gelfand’s could be inserted via the right internal jugular vein so as to place the occlusion balloon in the SVC.” Reply 17 (citing Ex. 1004 ¶¶ 73–83 (showing modified version of Gelfand’s Figure 1), 136, 145–159; Ex. 2006, 101:8–103:10); see also id. at 18–19 (citing Ex. 1032, 51:19–53:23, 204:4–205:22, 206:10–208:24) (Dr. Brecker’s admissions that diameters of Gelfand’s catheter would allow SVC placement via jugular vein and that placement of Swan-Ganz catheters through the SVC via the right internal jugular vein was known).” slip op. at 50

  Patent outcomesUS 10,639,460 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 10,639,460
• Abiomed, Inc. v. White Swell Medical Ltd.All claims unpatentable
  PTAB · Apr 4, 2023 · IPR2021-01478 · APJ Robert A Pollock · IPR · Final written decision

  Claims 1–16 are unpatentable: claims 1–14 and 16 as anticipated by Kaiser, and claims 1–16 as obvious under the asserted grounds.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Considering argument and evidence of record, we define a person of ordinary skill in the art as a member of a multidisciplinary team consisting of at least (1) a person (“Engineer POSA”) with either (a) a bachelor’s or master’s degree in mechanical engineering, biomedical engineering or a similar field, as well as two or more years of work experience with catheters or similar medical devices, or (b) a Ph.D. in mechanical or biomedical engineering, or in a similar field; working with (2) a person with an M.D. or analogous degree and five or more years of work experience in interventional cardiology, hemodynamics or a similar discipline (“Clinician POSA”); or an Engineer POSA receiving assistance from a Clinician POSA; or a Clinician POSA receiving assistance from an Engineering POSA; or a single person with the qualifications of both an Engineer POSA and a Clinician POSA. With respect to the parties’ proffered declarants, the record before us demonstrates that Dr. Day and Dr. Garcia are individually well-qualified to opine as to the perspective of an Engineer POSA and a Clinician POSA, respectively; and collectively qualified to opine from the perspective of one of ordinary skill in the art as to all aspects of the claimed invention and relevant prior art. See, e.g., Ex. 1002 ¶¶ 3–15; Ex. 1003 (Dr. Day’s curriculum vitae); Ex. 1004 ¶¶ 4–15; Ex. 1005 (Dr. Garcia’s curriculum vitae). With respect to Patent Owner’s declarant, Dr. Brecker’s experience and credentials as an interventional cardiologist amply qualifies him to speak to the perspective of one of ordinary skill in the art as a Clinician POSA. See Ex. 2005 ¶¶ 4–15, Exhibit A. But because there is no evidence that he is also an Engineering POSA, or is receiving assistance from an Engineering POSA, we accord less weight to his opinions as they relate to the province of an Engineer POSA. See Kyocera Senco Indus. Tools Inc. v. ITC, 22 F.4th 1369, 1377–78 (Fed. Cir. 2022) (holding that “to be qualified to offer expert testimony on issues from the vantage point of an ordinarily” slip op. at 33

  • Expert testimonyPetitioner expert creditedPatent owner expert discountedDecided for petitioner

    “work experience with catheters or similar medical devices, or (b) a Ph.D. in mechanical or biomedical engineering, or in a similar field; working with (2) a person with an M.D. or analogous degree and five or more years of work experience in interventional cardiology, hemodynamics or a similar discipline (“Clinician POSA”); or an Engineer POSA receiving assistance from a Clinician POSA; or a Clinician POSA receiving assistance from an Engineering POSA; or a single person with the qualifications of both an Engineer POSA and a Clinician POSA. With respect to the parties’ proffered declarants, the record before us demonstrates that Dr. Day and Dr. Garcia are individually well-qualified to opine as to the perspective of an Engineer POSA and a Clinician POSA, respectively; and collectively qualified to opine from the perspective of one of ordinary skill in the art as to all aspects of the claimed invention and relevant prior art. See, e.g., Ex. 1002 ¶¶ 3–15; Ex. 1003 (Dr. Day’s curriculum vitae); Ex. 1004 ¶¶ 4–15; Ex. 1005 (Dr. Garcia’s curriculum vitae). With respect to Patent Owner’s declarant, Dr. Brecker’s experience and credentials as an interventional cardiologist amply qualifies him to speak to the perspective of one of ordinary skill in the art as a Clinician POSA. See Ex. 2005 ¶¶ 4–15, Exhibit A. But because there is no evidence that he is also an Engineering POSA, or is receiving assistance from an Engineering POSA, we accord less weight to his opinions as they relate to the province of an Engineer POSA. See Kyocera Senco Indus. Tools Inc. v. ITC, 22 F.4th 1369, 1377–78 (Fed. Cir. 2022) (holding that “to be qualified to offer expert testimony on issues from the vantage point of an ordinarily” slip op. at 34

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

    “Accordingly, we agree with Petitioner that the ’871 Patent “teaches activating and adjusting restrictors based on pressure readings to achieve and then maintain target venous blood pressures.” Pet. Sup. Reply 2 (citing Ex. 1001, 15:33–36, 15:36–16:42, Fig. 11A). Implicit in the above analysis, and as expressly discussed at page 11 of the Reply, which we adopt, we understand “maintaining” to refer to keeping intravascular pressure at a target level or range, which may be lower than a normal body pressure. Cf. POR 30–31 (Patent Owner’s argument that “maintaining” is limited to non-hypotensive (i.e., substantially normal) systemic pressure). In view of the above, we adopt and apply Petitioner’s proposed construction of “maintaining intravascular pressure,” to mean “maintaining pressure within blood vessels or a blood vessel.” Our construction is not limited to maintaining a physiologically normal systemic pressure, and encompasses maintaining regions of low pressure in portions of the venous system between occlusion devices, or in the vicinity of one or more occlusion devices. We need not further define the meets and bounds of this term to resolve any dispute between the parties or decide the merits of Petitioner’s challenge. D.” slip op. at 46

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

    “It is Patent Owner’s burden in this proceeding to overcome the presumption that Kaiser is enabled. See, e.g., Amgen, 314 F.3d at 1354–55. This requirement is not excused in IPR proceedings. See Apple Inc. v. Corephotonics, Ltd., 861 F. App’x 443, 450 (Fed. Cir. 2021) (“[R]egardless of the forum, prior art patents and publications enjoy a presumption of enablement, and the patentee/applicant has the burden to prove nonenablement for such prior art.”). Considering all the argument and evidence of record, we find that Patent Owner has not overcome the presumption with respect to Kaiser for the reasons set forth on pages 16–19 of Petitioner’s Reply, which we adopt in full and briefly address below. With respect to enablement of Kaiser’s device, we find persuasive Dr. Day’s testimony that no substantial modification of Kaiser’s IVC embodiment would be necessary to deploy it in the SVC. See Ex. 2006, 218:6–220:13; Ex. 1002 ¶ 109 (annotated version of Kaiser’s Fig. 2 showing that the lead/catheter passes through the SVC to reach the IVC). With respect to enablement of Kaiser’s method in the SVC, Dr. Brecker’s analysis also falls short of overcoming the presumption that Kaiser is enabling. Dr. Brecker asserts, for example, that Kaiser also does not describe what pressure differential would need to be created through the use of a flow impedance device in the SVC in order to successfully perform its method using such a device in the SVC, and does not provide any exemplary pressure recordings demonstrating that its method can be successfully performed using a device in the SVC. Ex. 2005 ¶ 110. We find persuasive, however, Petitioner’s argument that Kaiser discloses representative pressure differentials, including an effective pressure differential for occluding the IVC (3 mmHg), which Dr. Brecker could not say would be ineffective for the SVC— but which a Clinician POSA could test, along with other pressure differentials to see what results they produced if the SVC were occluded. Reply 16–17 (citing Ex. 1007, 14:22, Fig. 4 (table showing exemplary hemodynamic data obtained by creating a pressure differential in the inferior vena cava); Ex. 1032, 190:23– 192:3 (Dr. Brecker’s testimony that a Clinician POSA would know how to measure the pressures such as those disclosed in Figure 4), 193:14–194:17 (at least some information could be derived from animal testing)). At least because Patent Owner has not argued (let alone demonstrated) that such testing would be undue, Patent Owner has not satisfied its burden to show non-enablement.” slip op. at 50

  Patent outcomesUS 10,653,871 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 10,653,871
• Abiomed, Inc. v. White Swell Medical Ltd.All claims unpatentable
  PTAB · Apr 4, 2023 · IPR2021-01477 · APJ Robert A Pollock · IPR · Final written decision

  Claims 1–16 are unpatentable: claims 1 and 3–16 are anticipated by Gelfand, and claims 1–16 are also obvious over the listed combinations.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “Patent Owner’s contention that the hypothetical person of ordinary skill in the art may not comprise a multidisciplinary team, but may be “a member” of that same multidisciplinary team, strikes us as a distinction without a difference. See id. Thus, although we disagree with Patent Owner’s analysis, we rephrase part one of our provisionally adopted definition to reference “a member of a multidisciplinary team.”” slip op. at 31

  • Expert testimonyPatent owner expert discountedDecided for patent owner

    “demonstrates that Dr. Day and Dr. Garcia are individually well-qualified to opine as to the perspective of an Engineer POSA and a Clinician POSA, respectively; and collectively qualified to opine from the perspective of one of ordinary skill in the art as to all aspects of the claimed invention and relevant prior art. See, e.g., Ex. 1002 ¶¶ 3–15; Ex. 1003 (Dr. Day’s curriculum vitae); Ex. 1004 ¶¶ 4–15; Ex. 1005 (Dr. Garcia’s curriculum vitae). With respect to Patent Owner’s declarant, Dr. Brecker’s experience and credentials as an interventional cardiologist amply qualify him to speak to the perspective of one of ordinary skill in the art as a Clinician POSA. See Ex. 2005 ¶¶ 4–15, Exhibit A. But because there is no evidence that he is an Engineering POSA, or receiving assistance from an Engineering POSA, we accord less weight to his opinions as they relate to the province of an Engineer POSA. See Kyocera Senco Indus. Tools Inc. v. ITC, 22 F.4th 1369, 1377–78 (Fed. Cir. 2022) (holding that “to be qualified to offer expert testimony on issues from the vantage point of an ordinarily skilled artisan in a patent case, an expert must at minimum possess ordinary skill in the art”). C.” slip op. at 34

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)Term construed petitioner constructionDecided for petitioner

    “Accordingly, we agree with Petitioner that the ’871 Patent “teaches activating and adjusting restrictors based on pressure readings to achieve and then maintain target venous blood pressures.” Pet. Sup. Reply 2 (citing Ex. 1001, 15:33–36, 15:36–16:42, Fig. 11A). Implicit in the above analysis, and as expressly discussed at pages 11–12 of the Reply, which we adopt, we understand “maintaining” to refer to keeping intravascular pressure at a target level or range, which may be lower than a normal body pressure. Cf. POR 30–31 (Patent Owner’s argument that “maintaining” is limited to non-hypotensive (i.e., substantially normal) systemic pressure). In view of the above, we adopt and apply Petitioner’s proposed construction of “maintaining intravascular pressure,” to mean “maintaining pressure within blood vessels or a blood vessel.” Our construction is not limited to maintaining a physiologically normal systemic pressure, and encompasses maintaining regions of low pressure in portions of the venous system between occlusion devices, or in the vicinity of one or more occlusion devices. We need not further define the meets and bounds of this term to resolve any dispute between the parties or decide the merits of Petitioner’s challenge. D.” slip op. at 46

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

    “F.3d at 1354–55. This requirement is not excused in IPR proceedings. See Apple Inc. v. Corephotonics, Ltd., 861 F. App’x 443, 450 (Fed. Cir. 2021) (“[R]egardless of the forum, prior art patents and publications enjoy a presumption of enablement, and the patentee/applicant has the burden to prove nonenablement for such prior art.”). Considering all the argument and evidence of record, we find that Patent Owner has not overcome the presumption with respect to Gelfand for at least the reasons set forth on pages 12–24 of Petitioner’s Reply, which we adopt in full and briefly summarize below.” slip op. at 51

  Patent outcomesUS 10,653,871 unpatentable
  Claim construction§ 102 anticipation§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 10,653,871
• Amperex Technology Limited v. Maxell, Ltd.All claims unpatentable
  PTAB · Mar 28, 2023 · IPR2021-01442 · APJ Kristina M Kalan · IPR · Final written decision

  Claims 1–37 are unpatentable under § 103; the Board found the Yoshida-based combinations established obviousness and did not reach the Kasamatsu-based grounds.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “B. Level of Ordinary Skill in the Art In our Institution Decision, we adopted Petitioner’s undisputed contention that a person of ordinary skill in the art “would have had at least a bachelor’s degree in chemistry, chemical engineering, or materials science and five or more years of experience in the field of batteries and battery materials” (Pet. 7 (citing Ex. 1003 ¶ 11)), with the caveat that the phrases “at least” and “or more” should not be construed as requiring a significantly greater level of education or experience than is explicitly set forth in Petitioner’s definition. Dec. 7–8. Patent Owner argues that one of ordinary skill in the art “in the field of the ’251 Patent would have a bachelor’s degree in chemistry, chemical engineering, or materials science or equivalent skill from professional experience, and about three years of experience in the field of batteries and battery materials.” PO Resp. 10 (citing Ex. 2015 ¶ 24). During the hearing, Patent Owner stated that “we’re fine with what the Board has expressed in its Institution Decision” as the definition of a person of ordinary skill in the art. Tr. 17:11–12. In its Reply, Petitioner argues that “Patent Owner readily admits that its definition is substantially similar to the definition proposed by Petitioner and the one adopted in the Institution,” and even “Patent Owner’s expert agrees that his analysis would be the same under either construction.” Reply 2 (citing Ex. 2008 ¶ 16). Neither party argues that the outcome of this case would differ based on our adoption of any particular definition of one of ordinary skill in the art. We retain the definition set forth in the Institution Decision, because it is consistent with the cited prior art. We further note that the prior art itself demonstrates the level of skill in the art at the time of the invention. Cf. Okajima v. Bourdeau, 261 F.3d 1350, 1355 (Fed. Cir. 2001) (explaining that “specific findings on the level of skill in the art . . . [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 neededDecided for petitioner

    “C. Claim Construction We apply the claim construction standard articulated in Phillips v. AWH Corp., 415 F.3d 1303 (Fed. Cir. 2005) (en banc); 37 C.F.R. § 42.100(b). Under Phillips, claim terms are afforded “their ordinary and customary meaning.” Phillips, 415 F.3d at 1312. The “ordinary and customary meaning of a claim term is the meaning that the term would have to a person of ordinary skill in the art in question at the time of the invention.” Id. at 1313. Only terms that are in controversy need to be construed, and only to the extent necessary to resolve the controversy. Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc., 200 F.3d 795, 803 (Fed. Cir. 1999). Petitioner states that “each of the challenged claims includes terms that POSITA would understand according to their plain and ordinary meaning.” Pet. 5. Patent Owner does not appear to propose any express claim constructions. See generally PO Resp.; Sur-Reply. On this record, we determine that no claim terms require express construction.” slip op. at 9

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

    “The Federal Circuit has set forth “two separate tests” to determine whether a reference is analogous art to the claimed invention, i.e., whether one of ordinary skill in the art would even look to the teachings of that reference. In re Bigio, 381 F.3d 1320, 1325 (Fed. Cir. 2004). They are (1) whether the art is from the same field of endeavor, regardless of the problem addressed and, (2) if the reference is not within the field of the inventor’s endeavor, whether the reference is still reasonably pertinent to the particular problem with which the inventor is involved. Id.; Circuit Check Inc. v. QXQ Inc., 795 F.3d 1331, 1335 (Fed. Cir. 2015). In order for a reference to be “reasonably pertinent” to the problem, it must “logically . . . have commended itself to an inventor’s attention in considering his problem.” In re ICON Health & Fitness, Inc., 496 F.3d 1374, 1379–80 (Fed. Cir. 2007); see also KSR, 550 U.S. at 417 (“When a work is available in one field of endeavor, design incentives and other market forces can prompt variations of it, either in the same field or a different one.”). The “reasonable-pertinence analysis must be carried out through the lens of a [person having ordinary skill in the art].” Donner Tech., LLC v. Pro Stage Gear, LLC, 979 F.3d 1353, 1360 (Fed. Cir. 2020). The scope of analogous art is to be construed broadly. Wyers v. Master Lock Co., 616 F.3d 1231, 1238 (Fed. Cir. 2010). We focus here on the “reasonably pertinent” test for analogous art.11 Based on our review of the disclosures of the ’251 patent, we determine that the ’251 patent is broadly concerned with a battery separator with improved heat resistance. Ex. 1001, 2:14–19 (“it is an object of the present invention to provide a battery separator that can constitute a nonaqueous electrolyte battery having excellent safety in a high-temperature environment”); see also Reply 17 (citing Ex. 1001, 1:36–38). The ’251 patent uses resins and heat resistant particles. Ex. 1001, 5:31–44; see also Reply 17. Amagi teaches an epoxy resin with excellent heat resistance. Ex. 1022 ¶ 10. We agree with Petitioner that Amagi “is reasonably pertinent to the particular problem with which the inventor is involved,” because it addresses one of the same problems, namely, how to make a resin with sufficient heat resistance. In re Bigio, 381 F.3d at 1325; Donner, 979 F.3d at 1360 (“[I]f the two references have ‘pertinent similarities’ such that Mullen is reasonably pertinent to one or more of the problems to which the ’023 patent pertains, then Mullen is analogous art.”); see also In re Clay, 966 F.2d 656, 659–60 (Fed. Cir. 1992) (noting that similarities in structure and function between the claimed invention and the reference “carry far greater weight [in determining analogy]” (quoting In re Ellis, 476 F.2d 1370, 1372 (CCPA 1973))). We also agree with Petitioner that Amagi is “reasonably pertinent to the particular problem with which the inventor is involved” because it addresses another issue pertinent to the heat resistant resin layer in a lithiumion battery, namely, the particular particle size of the filler in the heat 11 Because we find that Amagi meets the “reasonably pertinent” test for analogous art, we do not address the question of whether Amagi is in the same field of endeavor as the ’251 patent.” slip op. at 18

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

    “We have reviewed Petitioner’s rationale to combine and arguments regarding reasonable expectations of success, and are persuaded that Petitioner has met its burden by a preponderance of the evidence, without reliance on hindsight. See, e.g., In re McLaughlin, 443 F.2d 1392, 1395 (CCPA 1971) (“Any judgment on obviousness is in a sense necessarily a reconstruction based upon hindsight reasoning,” but “so long as it takes into account only knowledge which was within the level of ordinary skill at the time the claimed invention was made and does not include knowledge gleaned only from applicant’s disclosure, such a reconstruction is proper.”). Petitioner clearly articulates its motivations to combine with a reasonable expectation of success (Pet. 39–44), supporting these arguments with testimony from its expert (Ex. 1003 ¶¶ 336–357). We credit Petitioner’s argument that “each of the references are directed to non-aqueous secondary batteries and/or heat-resistant materials for use in non-aqueous secondary batteries.” Pet. 39. Dr. van Schalkwijk explains why Yoshida, Nagayama, and Takezawa “are all directed to non-aqueous secondary batteries and/or heat-resistant materials for use in non-aqueous secondary batteries,” and that one of ordinary skill in the art “would have understood that the properties of the inorganic filler used to solve heat-related issues in a rotating machine [as in Amagi] are the same when used to solve the similar heat-related issues in non-aqueous electrolyte batteries,” providing citations to each reference to support his assertions. Ex. 1003 ¶ 337 (citing Ex. 1008 ¶¶ 1, 6; Ex. 1009 ¶ 1; Ex. 1010 ¶ 2), ¶ 337 n.30.” slip op. at 25

  Patent outcomesUS 9,166,251 unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 9,166,251
• Amperex Technology Limited v. Maxell, Ltd.All claims unpatentable
  PTAB · Mar 28, 2023 · IPR2021-01443 · APJ Elizabeth M Roesel · IPR · Final written decision

  Claims 1–5 are unpatentable as obvious over Choi and Kim; the Board found motivation to combine and that the references teach or suggest the claimed limitations.

  RulingsFinal written decision

  • Skill levelSkill level petitioner adoptedDecided for petitioner

    “B. Level of Ordinary Skill in the Art Petitioner contends that a person of ordinary skill in the art (“POSITA”) would have had “at least a bachelor’s degree in chemistry, chemical engineering, or materials science, as well as five or more years of experience in the field of batteries and battery materials.” Pet. 8 (citing Ex. 1003 ¶ 11). Patent Owner does not address the level of ordinary skill in the art. See generally PO Resp. We find that Petitioner’s articulation of the level of ordinary skill in the art is consistent with the scope and content of the ’019 Patent and the asserted prior art. We apply Petitioner’s definition of a POSITA, with the caveat that the phrases “at least” and “or more” do not require significantly more education or experience than is explicitly set forth in Petitioner’s definition.” slip op. at 7

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

    “Petitioner contends that the proper construction of “different compositions of elements” in claim 3 and “composition of elements . . . is different” in claim 4 is “the plain and ordinary meaning of the terms, i.e. different elements or different amounts of the same elements between the at least two lithium-containing transition metal oxides.” Pet. 6 (citing Ex. 1003 ¶ 128). Patent Owner neither opposes this construction, nor proposes any express construction of its own. See PO Resp. We apply Petitioner’s unopposed claim construction, which is supported by the specification of the ’019 Patent. Ex. 1001, 11:29–33 (In formula (2), “M1, M2 and M3 are selected from the same elements as in the formula (1), but the elements selected or the constituting element ratios selected in the individual positive electrode active materials having different average particle sizes may differ from each other.”). The specification provides several examples in which the cathode active material is a mixture of two lithium-containing transition metal oxides having different average particle sizes and different amounts of the same elements. Ex. 1001, ¶¶ 128, 129 (discussing Examples 1, 6, and 9–11).” slip op. at 8

  • Claim Construction › Threshold & procedure › Whether a term needs construction (O2 Micro)No construction neededDecided for patent owner

    “We determine that no other claim term requires express construction for purposes of resolving the controversy. 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

  • Expert testimonyPetitioner expert creditedPatent owner expert discountedDecided for petitioner

    “lithium-containing transition metal oxides including “dopants.” PO Resp. 5–6; PO Sur-reply 2–3; Ex. 2008 ¶¶ 33–36. Kim’s silence on particle size and dopants does not, however, mean that Kim’s cathode active material is “wholly different” from Choi’s cathode active material, as asserted by Patent Owner and Dr. Lucht. PO Resp. 6; Ex. 2008 ¶ 35. Patent Owner does not dispute that Choi and Kim both disclose lithium-containing transition metal oxides as cathode active materials. PO Resp. 5 (discussing Kim and citing Ex. 1006 ¶ 69); see also Ex. 2008 ¶ 36 (same). Moreover, Dr. Lucht does not explain how Kim’s silence on particle size and dopants would have affected a POSITA’s motivations and expectations regarding the electrolyte—the modification of Choi proposed by Petitioner. For this reason and as further explained below, Dr. Lucht’s testimony that “Kim . . . discloses a wholly different cathode active material technology than Choi” (Ex. 2008 ¶ 35) is not sufficient to rebut Dr. van Schalkwijk’s testimony that a POSITA would have been motivated to include the aliphatic nitrile compound of Kim as an electrolyte additive in the battery of Choi “to increase thermal stability and improve discharge characteristics in the resultant batteries” and would have expected the addition of the aliphatic nitrile compound to be effective. Ex. 1003 ¶¶ 151, 152. As discussed above, Choi and Kim teach different ways to improve thermal stability. Whereas Choi’s small diameter cathode active materials confer thermal stability (Ex. 1005, 7, 10), Kim teaches that thermal stability and discharge characteristics are improved by a protective layer formed by a complex between the surface of a cathode active material and an aliphatic dinitrile compound. Ex. 1006, code (57), ¶¶ 32, 33, 37–42. According to Kim, a “polar cyano group with high dipole moment in the aliphatic nitrile cathode” and “X-ray photoelectron spectroscopy data . . . show a complex is formed by a bond between a cobalt metal oxide and the cyano group of the dinitrile compound.” Id. ¶¶ 39, 40, Figs. 1, 2. Because Choi’s cathode active material likewise contains a transition metal, such as cobalt, the references support a reasonable inference that the same sort of cyano group complex would be formed if a dinitrile compound were included in Choi’s electrolyte. Ex. 1005, 5–6; Ex. 1006 ¶¶ 37–40. On this record, there is no evidence that Choi’s dopants would have interfered with complexation between the surface of a cathode active material and an aliphatic nitrile compound or formation of a protective layer on the cathode, as described by Kim. To the contrary, Dr. van Schalkwijk testified that the addition of small amounts of an additive element, such as magnesium, to the cathode “wouldn’t change . . . the types of results they were looking for in terms of film formation on what is substantially lithium cobalt oxide or lithium nickel oxide.” Ex. 2016, 37:18–40:3 (discussing Kim). In our Institution Decision, we observed that “Dr. Lucht does not say that Kim’s teachings about an aliphatic nitrile compound are inapplicable to Choi’s cathode materials.” Inst. Dec. 19. On this record, there is still no such testimony from Dr. Lucht. At the oral hearing, Patent Owner’s counsel conceded that Patent Owner is not arguing that the result would be different when combining a dinitrile (or mononitrile) compound with a “complex” cathode material, as compared with a “basic” cathode material. Tr. 32:7–20. Accordingly, Patent Owner’s distinction between “complex” and “basic” lithium-containing transition metal oxides (PO Resp. 5–7; Ex. 2008 ¶¶ 34– 36; Ex. 2015 ¶¶ 10–12) does not undermine Dr. van Schalkwijk’s testimony that a POSITA would have been motivated to include an aliphatic nitrile in characteristics of Choi’s battery and would have expected that the electrolyte additive would have been effective. Ex. 1003 ¶¶ 147, 148, 150–152.” slip op. at 16

  Patent outcomesUS 9,350,019 unpatentable
  Claim construction§ 103 obviousnesscites Phillips · KSR · Graham
  Patents in suitUS 9,350,019

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.