PTAB
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  • PTAB · Apr 24, 2023 · IPR2022-00193 · APJ John G New · IPR · Final written decision

    Claims 1–8, 10–18, and 20 are unpatentable as obvious over Spenser and Spenser II; claims 9 and 19 were not shown unpatentable.

    RulingsFinal written decision
    • Obviousness (§103) › Motivation to combine / reasonable expectation of successUnpatentableMotivation foundUnpatentable

      “Spenser II provides that its cloth “has a thickness ranging from about 1 to 5 mm.” Spenser and Levi both teach a valve that has a diameter of 25 mm and 26 mm respectively when fully expanded. Accordingly, even if we were to assume a POSITA used the thinnest possible cloth in Spenser II, Petitioner’s proposed combination using the smaller Spenser 25 mm diameter (12.5 mm radius) expanded valve covered by a 1 mm cloth resulting in a 27 mm diameter (13.5 mm radius) valve…. From this we can conservatively estimate how much cloth is required for a cross-section of the proposed device (Acloth) by calculating the total area of a cross-section of the cloth-covered valve (π*(13.5 mm)2) and subtracting the area of a cross-section of just the valve (π*(12.5 mm)2). Acloth = π*(13.5 mm)2 - π*(12.5 mm)2 = 81.68 mm2 Accordingly, Petitioner’s proposed combination requires 81.68 mm2 of outer cloth in a given cross-section of the device.” slip op. at 78

    • Obviousness (§103) › Objective indicia / secondary considerations › Long-felt need / failure of othersObjective indicia no nexusDecided for petitioner

      “that the claims are not obvious over Spenser and Spenser II because Petitioner fails to demonstrate that any of its proposed prior art combinations disclose or render obvious a valve with a “sealing material” that is delivered “endovascularly.” PO Resp. 11. Patent Owner also argues Petitioner fails to prove that any of its combinations disclose or render obvious a “fibrous network” “in overlapping radial alignment with native valve leaflets.” Id. at 73. Additionally, Patent Owner contends that objective indicia of non-obviousness (also called secondary considerations) support a conclusion that the challenged claims are nonobvious. Id. at 2. Finally, Patent Owner contends that the testimony of Petitioner’s expert, Dr. Buller, should be given little or no weight, because, Patent Owner argues, he has no expertise in the issues at hand. Id. at 90.” slip op. at 16

    • Expert testimonyPetitioner expert creditedDecided for petitioner

      “that the claims are not obvious over Spenser and Spenser II because Petitioner fails to demonstrate that any of its proposed prior art combinations disclose or render obvious a valve with a “sealing material” that is delivered “endovascularly.” PO Resp. 11. Patent Owner also argues Petitioner fails to prove that any of its combinations disclose or render obvious a “fibrous network” “in overlapping radial alignment with native valve leaflets.” Id. at 73. Additionally, Patent Owner contends that objective indicia of non-obviousness (also called secondary considerations) support a conclusion that the challenged claims are nonobvious. Id. at 2. Finally, Patent Owner contends that the testimony of Petitioner’s expert, Dr. Buller, should be given little or no weight, because, Patent Owner argues, he has no expertise in the issues at hand. Id. at 90.” slip op. at 16

    Patent outcomesUS 10,881,538 mixed
    § 103 obviousnesscites Phillips · KSR · Graham
    Patents in suitUS 10,881,538

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.