The Federal Circuit recently reversed a decision of the Patent Trial and Appeal Board (Board) finding claims of a patent owned by PersonalWeb Technologies, LLC to be invalid. Apple, Inc. (Apple) petitioned for inter partes review (IPR), and the Board found certain claims of the patent to be invalid as obvious in light of two references. The Federal Circuit reversed, holding the Board provided insufficient evidence to support a finding of inherency. Pers. Web Techs., LLC v. Apple, Inc., No. 2018-1599, 2019 U.S. App. LEXIS 6919 (Fed. Cir. Mar. 8, 2019) (Before Moore, Taranto, and Chen, Circuit Judges) (Opinion for the Court, Chen, Circuit Judge).