Divided Federal Circuit Finds No Preclusion, Upholds Rejection Of Patent Claims

Mealey's (March 5, 2018, 1:05 PM EST) -- WASHINGTON, D.C. — An inter partes re-examination decision by the Patent Trial and Appeal Board (PTAB) that nine patent claims are invalid as anticipated and lacking written description was not erroneous, a divided Federal Circuit U.S. Court of Appeals ruled March 2 (Knowles Electronics LLC v. Cirrus Logic Inc., No. 16-2010, Fed. Cir., 2018 U.S. App. LEXIS 5228)....