WASHINGTON, April 27 -- The U.S. Court of Appeals for the Federal Circuit issued the following order on March 27:

Trading Technologies International, Inc. (TT)-whose successor is the plaintiff-appellant named in the caption- brought this action against IBG LLC and its subsidiary Interactive Brokers LLC (together, IBG) in 2010 in the Northern District of Illinois, alleging infringement of several TT-owned patents.1 Four of TT's patents are at issue in this appeal: U.S. Patent Nos. 6,766,304 (issued July 20, 2004); 6,772,132 (issued August 3, 2004); 7,676,411 (issued March 9, 2010); and 7,813,996 (issued October 12, 2010). The district court held the asserted claims of the '411 and '996 patents invalid, and a jury found the asserted claims o...