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Patent Applications Laches Continuation Applications

Foley & Lardner LLP

Federal Circuit Skeptical of Prosecution Laches

Foley & Lardner LLP on

In Google v. Sonos, the Federal Circuit soundly disposed of arguments that the patent-in-suit was unenforceable due to laches based on an “unreasonable delay” in patent prosecution. Does the court’s reasoning foreclose the...more

Morrison & Foerster LLP

Federal Circuit Pushes Back on Prosecution Laches

In October 2023, we reported on the district court decision in Sonos, Inc. v. Google LLC. The decision was notable for reviving the prosecution laches doctrine to render unenforceable a continuation patent filed 13 years...more

Morrison & Foerster LLP

Sonos v. Google Breathes New Life into Prosecution Laches Doctrine

A recent district court decision in Sonos v. Google has set forth a novel application of the prosecution laches doctrine to a patent with a post-1995 priority date. Sonos Inc. v. Google LLC, 20-06754 WHA, 2023 WL 6542320...more

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