Mealey's (July 6, 2018, 12:14 PM EDT) -- WASHINGTON, D.C. — In a July 3 holding, the Federal Circuit U.S. Court of Appeals found that a Texas federal magistrate judge erred in granting a patent owner a summary judgment that the on-sale bar defense is inapplicable in an infringement action (Equistar Chemicals LP, et al. v. Westlake Chemical Corporation, Nos. 2017-1548, -1549, Fed. Cir., 2018 U.S. App. LEXIS 18294)....