— Also termed presumption of validity. [Cases: Patents 112.
1. C.J.S. Patents §§ 194, 203–205, 207.]
“The patent statute is unambiguous: ‘A patent shall be presumed valid …. The burden of establishing invalidity of a patent or any claim thereof shall rest on the party asserting such invalidity.’ A patent is born valid. It remains valid until a challenger proves it was stillborn or had birth defects, or is no longer viable as an enforceable right.” Roper Corp. v. Litton Sys., Inc., 757 F.2d 1266, 1270 (Fed. Cir. 1985)(quoting 37 USCA § 282).