On July 14, 2022, the Court of Appeals for the Federal Circuit (CAFC) sanctioned plaintiff-appellant Pop Top Corp. for the filing of a frivolous appeal, granting defendant-appellee Rakuten Kobo Inc. $107,748 in attorney’s fees and doubled costs.  Pop Top Corp. v. Rakuten Kobo Inc., No. 21-2174 (Fed. Cir. July 14, 2022).