The Federal Circuit announced on Friday that it will not review the Patent Trial and Appeal Board’s (PTAB) decision to invalidate certain claims of Koss Corp.’s wireless earphone patents. This decision comes after a definitive invalidation of these patents in California. The ruling aligns with prior interpretations of the Alice standard, which has increasingly been used to challenge and invalidate patents on the basis of abstract ideas.
Further details on the Federal Circuit’s decision and the underlying California invalidations can be found in the Law360 article.