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To embed, copy and paste the code into your website or blog: A weekly summary of the precedential patent-related opinions issued by the Court of Appeals for the Federal Circuit and the opinions designated precedential or informative by the Patent Trial and Appeal Board. Wi-LAN Inc. v. Sharp Electronics Corp., et al. , Nos. 2020-1041, -1043 (Fed. Cir. (D. Del.) Apr. 6, 2021). Opinion by Dyk, joined by Taranto and Stoll. Wi-LAN sued Sharp and Vizio for infringement of two patents relating to video deinterlacing and multimedia encoders, respectively. Regarding the first patent, the district cour...

The Federal Circuit’s recent decision in Wi-LAN Inc. v. Sharp Electronics Corp. demonstrates potential difficulties for plaintiffs in proving infringement where third-party information is necessary to establish that defendants practice the asserted claims. The court affirmed the district court’s grant of summary judgment of noninfringement, holding that purported printouts of source code and supporting declarations obtained from third-party chip manufacturers were inadmissible hearsay. Although the court does not explicitly identify what type of information regarding the source code woul...