Engines
GE Aviation Petitions Series of UTC, Rolls Patents
Filings include appeal to review elements of Pratt & Whitney geared turbofan
Lufthansa took delivery of its first Pratt & Whitney PW1100G-powered A320neo on January 20. (Photo: Lufthansa Group)
Lufthansa took delivery of its first Pratt & Whitney PW1100G-powered A320neo on January 20. (Photo: Lufthansa Group)

GE Aviation recently filed petitions with the U.S. Patent and Trademark Office (PTO) for inter partes review (IPR) of five patents granted to United Technologies and another to Rolls-Royce, including technology at the heart of the Pratt & Whitney PW1000G, or so-called geared turbofan. GE claims the office improperly granted the patents mainly because of the age of the technologies and concepts in question.


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