Apple to Face Federal Circuit Appeal in AirPods Patent Dispute

Koss Corp. is vying to save one of its patents for wireless earphones and headphones that has been at the center of its infringement suits against Apple Inc. over its AirPods wireless earbuds.

Koss Corp. plans to appeal a Patent Trial and Appeal Board decision finding that some of its patent’s claims are obvious and not protectable, according to a notice filed at the US Court of Appeals for the Federal Circuit. Koss sued Apple and other companies, accusing them of infringing its patents with various wireless headphone products.

Apple and Koss settled the infringement suit on the eve of …