Koss' Headphone Patents Face Alice Challenge In Calif.

By Andrew Karpan (September 13, 2021, 3:40 PM EDT) -- The electronics company Plantronics Inc. wants a California federal judge to rule that patents owned by headphone maker Koss Corp. are invalid under the U.S. Supreme Court's Alice ruling after getting the case transferred out of the Western District of Texas.

Santa Cruz, California-based headset maker Plantronics laid out its case in a Friday filing in front of U.S. District Judge Jon S. Tigar against four patents asserted by Koss, a Wisconsin rival that filed a flurry of patent suits last year in Texas federal court against Plantronics and fellow competitors including Apple, Bose and Skullcandy Inc.

Plantronics says the patents...

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