This morning the Federal Circuit released three precedential opinions in patent cases and one nonprecedential opinion in a trademark case. In the first precedential opinion, the court affirmed invalidity decisions of the Patent Trial and Appeal Board in inter partes review proceedings. In the second precedential opinion, the court affirmed-in-part, reversed-in-part, vacated-in-part, and remanded the latest appeals involving Apple and Wi-LAN. In the third precedential opinion, the court affirmed-in-part, vacated-in-part, and remanded an appeal in a case pitting the California Institute of Technology against Broadcom Ltd. Notably, Judge Dyk concurred-in-part and dissented-in-part from the majority’s holding. Finally, in the court’s nonprecedential opinion it affirmed the cancelation of a trademark registration. Notably, Judge Cunningham authored the nonprecedential opinion, her first for the court. Here are the introductions to the opinions.