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Ex parte EHRGOTT et al.

08148764 (B.P.A.I. Apr. 8, 1998)
Ex parte EHRGOTT et al.

1 Cited authority

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

    35 U.S.C. § 103   Cited 6,130 times   479 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."