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Federal Circuit Wrestles with Prosecution Laches in Sonos v. Google

Summary by patentlyo.com
In 2020, Sonos sued Google in the N.D. of California, asserting two “zone scenes”  wireless speaker patents (US 10,848,885 and 10,469,966) that allow for overlapping groups of speakers. A jury found Google liable and awarded $30 million in damages. In an unusual move, District Judge William Alsup threw out the verdict in a 55-page post-trial order. He held the patents unenforceable for prosecution laches and invalid for lack of written descripti…
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patentlyo.com broke the news in on Friday, July 11, 2025.
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