Utility Patent Cases
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Coverage since November 3, 1994

Utility Patent

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Regents of University of Minnesota v. Gilead Sciences — Federal Circuit Affirms Invalidity of Antiviral Drug Patent for Lack of Written Description

The Federal Circuit affirmed the PTAB’s ruling that the University of Minnesota’s antiviral drug patent—directed to phosphoramidate prodrugs of nucleoside derivatives—lacked adequate written description support for its broad genus claims, because the patent’s specification disclose

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Grace Instrument v. Chandler Instruments — Federal Circuit Vacates Indefiniteness Finding, Reaffirms Primacy of Intrinsic Record Over Dictionary Definitions

The Federal Circuit vacated a district court’s indefiniteness finding for a viscometer patent, holding that the intrinsic record — not dictionary definitions — governs claim construction, and that terms of degree are not indefinite when the specification provides adequate context for a skilled

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