Mealey's (September 12, 2019, 4:05 PM EDT) -- WASHINGTON, D.C. — In competing reply briefs recently filed with the Federal Circuit U.S. Court of Appeals, an appellant and cross-appellant continue to debate the essence of a disputed fracking patent, as well as whether the panel possesses appellate jurisdiction in the case (EnerPol LLC v. Schlumberger Technology Corp., Nos. 2019-1079, -1120, Fed. Cir.)....