Mealey's (September 29, 2020, 1:25 PM EDT) -- WASHINGTON, D.C. — In a Sept. 28 order, the Federal Circuit U.S. Court of Appeals refused to order a Texas federal judge to stay patent infringement litigation pending the outcome of a recently instituted inter partes review (IPR) of a patent used in the hydraulic fracturing industry (In re: Sand Revolution LLC, No. 20-145, Fed. Cir.)....