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Ex Parte Langdo et al

11073780 (P.T.A.B. Jan. 17, 2014)
Ex Parte Langdo et al

4 Cited authorities

  1. KSR International Co. v. Teleflex Inc.

    550 U.S. 398 (2007)   Cited 1,544 times   185 Legal Analyses
    Holding that, in an obviousness analysis, "[r]igid preventative rules that deny factfinders recourse to common sense, however, are neither necessary under our case law nor consistent with it"

  2. Perricone v. Medicis Pharmaceutical Corp.

    432 F.3d 1368 (Fed. Cir. 2005)   Cited 147 times   2 Legal Analyses
    Holding that a prior-art reference anticipated claims 1-4 and 7, but not claims 8, 9, and 13, because the latter set of claims contained one fewer limitation

  3. In re Kubin

    561 F.3d 1351 (Fed. Cir. 2009)   Cited 133 times   10 Legal Analyses
    Finding patent invalid where an inherent benefit "is not an additional requirement imposed by the claims . . . but rather a property necessarily present" when the other limitations are satisfied

  4. Section 103 - Conditions for patentability; non-obvious subject matter

    35 U.S.C. § 103   Cited 6,120 times   473 Legal Analyses
    Holding the party seeking invalidity must prove "the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains."