Engines
Pratt’s PW1000G subject of Rolls lawsuit
Rolls-Royce in late August filed a complaint alleging

Rolls-Royce in late August filed a complaint alleging infringement by United Technologies (UTC) of the patent for the Rolls-Royce swept fan blade–the same design, claims Rolls, that UTC subsidiary Pratt & Whitney used in its PW1000G PurePower geared turbofan for the Bombardier C Series and Mitsubishi MRJ. The complaint specifically identifies the fan stages on both the PW1000G and Engine Alliance GP7200 engine and alleges that a number of other UTC civil engines infringe on the Rolls-Royce patent. In a statement released last month, Rolls-Royce said it seeks unspecified damages and injunctions.

The UK company said it expects a jury to hear the case in the first half of next year in the Federal Court for the Eastern District of Virginia.