Mealey's (February 8, 2018, 1:09 PM EST) -- WASHINGTON, D.C. — The Patent Trial and Appeal Board’s allowance of various claims of a swimming pool water pump patent following inter partes re-examination (IPX) must be revisited in light of its analysis of a prior art reference, the Federal Circuit U.S. Court of Appeals ruled Feb. 7 (Hayward Industries Inc. v. Pentair Water Pool and Spa Inc., No. 17-1021, Fed. Cir.)....