“Winning” Prosecution Arguments Can Invalidate Your Patent As Indefinite
Intellectual Property Law Blog
MARCH 15, 2021
On February 10, 2021, the Federal Circuit in Infinity Computer Products, Inc. v. Oki Data Americas, Inc. , No. 20-1189 (Fed. Cir. 2021) affirmed a decision by the U.S. District Court of Delaware that patent claims were invalid for indefiniteness based on conflicting positions taken by the patentee during prosecution. Specifically, the Federal Circuit held that the conflicting positions leave one of ordinary skill without reasonable certainty regarding the scope of the invention.
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