Holding that "because extrinsic evidence can help educate the court regarding the field of the invention and can help the court determine what a person of ordinary skill in the art would understand claim terms to mean, it is permissible for the district court in its sound discretion to admit and use such evidence"
Holding that “an indefinite article ‘a’ or ‘an’ in patent parlance carries the meaning of ‘one or more’ in open-ended claims containing the transitional phrase comprising” unless a patentee has “ ‘evidence[d] a clear intent’ to limit ‘a’ or ‘an’ to ‘one’ ”
Holding that although the claim elements "eyeglass hanger member" and "eyeglass contacting member" include a function, these claim elements do not invoke 35 U.S.C. 112, sixth paragraph because the claims themselves contain sufficient structural limitations for performing these functions
Holding that the corresponding structure was not just a "flat rectangle, but a plastic flap that folds over [an] envelope's opening and is secured to the outside of one or both panels of the envelope"
Holding that Class II medical devices, which are not subject to a “rigorous premarket approval process” and thus cannot receive patent term extensions, are nonetheless covered by the safe harbor
Holding that repeated references in claim to both "a cup" and "the cup" and disclosure of only one cup in drawings and specification indicated that only one cup was involved
35 U.S.C. § 112 Cited 7,418 times 1068 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