Engines
Pratt and Whitney Countersues Rolls-Royce
Pratt & Whitney today filed a complaint in the U.S.

Pratt & Whitney today filed a complaint in the U.S. District Court in Connecticut against Rolls-Royce, claiming that UK-based engine maker misled the U.S. Patent & Trademark Office to obtain a patent related to swept fan blades. The complaint follows a lawsuit filed on August 26 by Rolls-Royce against Pratt & Whitney parent United Technologies alleging that designs of certain fan stages in the PurePower PW1000G, the Engine Alliance GP7200 and “a number of other UTC engines” infringe the Rolls-Royce patent.