149 F.3d 1350 (Fed. Cir. 1998) Cited 160 times 2 Legal Analyses
Holding that objective evidence of nonobviousness [secondary considerations] "includes copying, long felt but unsolved need, failure of others, commercial success, unexpected results created by the claimed invention, unexpected properties of the claimed invention, licenses showing industry respect for the invention, and skepticism of skilled artisans before the invention"