Holding the district court erred by "considering the references in less than their entireties, i.e., in disregarding disclosures in the references that diverge from and teach away from the invention at hand"
Holding that "[a]n original patent cannot be infringed once a reissue patent has issued, for the original patent is surrendered" and "[t]he original claims are dead"
Noting that the question is whether the scope of enablement conveyed by the disclosure to a person of ordinary skill in the art is commensurate with the scope of protection taught by the claims
35 U.S.C. § 112 Cited 7,412 times 1064 Legal Analyses
Requiring patent applications to include a "specification" that provides, among other information, a written description of the invention and of the manner and process of making and using it
35 U.S.C. § 103 Cited 6,165 times 492 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."