Posts Tagged: "Aylus Networks v. Apple"

Statements Made by Patent Owner During IPR Can Support Finding of Prosecution Disclaimer

In the case of Aylus Networks, Inc. v. Apple Inc., the Federal Circuit affirmed the district court’s finding of summary judgment for Apple Inc. (“Apple”). The Court held that statements made by a patent owner during an inter partes review (“IPR”) proceeding, whether before or after an institution decision, can be relied upon to support a finding of prosecution disclaimer… To invoke prosecution disclaimer, the statements must constitute a clear and unmistakable surrender of claim scope. If a prosecution argument is subject to more than one reasonable interpretation, it cannot rise to the level of a clear and unmistakable disclaimer.