Noting that licenses "may constitute evidence of nonobviousness; however, only little weight can be attributed to such evidence if the patentee does not demonstrate a nexus between the merits of the invention and the licenses of record" (quoting In re GPAC Inc. , 57 F.3d 1573, 1580 (Fed. Cir. 1995) )
Upholding obviousness finding where patent was directed to one of two alternative resins disclosed in prior art reference, even though reference described claimed resin as "inferior."
Holding that any overlap between a claimed range and one in the prior art is sufficient for a prima facie case of obviousness, even if insufficient to render it unpatentable
35 U.S.C. § 103 Cited 6,124 times 478 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."