Holding that a district court's vague description of the concept of a design patent provided insufficient detail for the appellate court to "discern the internal reasoning employed by the trial court to reach its decision"
35 U.S.C. § 103 Cited 6,129 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."