Rolls-Royce Files Patent Infringement Complaint

http://www.aero-news.net/news/commair.cfm?ContentBlockID=8202c5a9-f445-4be8-84b1-fb9a7d44bb8f&Dynamic=1

Technologies Corporation (UTC) of the Rolls-Royce swept fan blade patent in the Federal Court for the Eastern District of Virginia in the United States. The complaint specifically alleges that the fan stages on the Engine Alliance GP7200 engine and on UTC’s PW1000G engine (also known as the Geared Turbofan) infringe the Rolls-Royce patent. The complaint also alleges that a number of other UTC aero civil engines infringe the Rolls-Royce patent. Rolls-Royce is seeking damages and injunctions.

The origins of this case date back to the late 1990s. The dispute was initiated by UTC when it applied to the US Patent Office to have the Rolls-Royce swept fan blade patent struck out. UTC’s efforts were unsuccessful and the validity of the Rolls-Royce patent has been upheld in the United States.



Rolls-Royce alleges UTC patent infringement; Pratt & Whitney to 'vigorously defend"
http://www.centreforaviation.com/news/share-market/2010/08/27/rolls-royce-alleges-utc-patent-infringement-pratt--whitney-to-vigorously-defend/page1