The Federal Circuit has upheld a decision by the Patent Trial and Appeal Board (PTAB) invalidating all challenged claims in a content streaming patent (7,953,390) asserted by Affinity Labs of Texas, LLC (2015-1933). In a one-page, per curiam order issued on May 9, 2016 without an accompanying opinion, the court affirmed the PTAB’s final decision in an inter partes review (IPR) proceeding filed by HTC, LG Electronics (LGE, which withdrew after institution), and Samsung (IPR2014-00209, joined with IPR2014-00212). In that decision, entered on May 13, 2015, the PTAB invalidated claims 16, 19, and 20 as obvious over prior art.