IRVINE, Calif., Dec. 31, 2012 (GLOBE NEWSWIRE) -- Endologix, Inc. (Nasdaq:ELGX), developer and marketer of innovative treatments for aortic disorders, announced today that it has become aware that Lifeport Sciences, LLC, which is affiliated with Acacia Research Corporation, has filed a lawsuit against Endologix in the United States District Court in Delaware alleging that Endologix’s AFX Endovascular AAA System and IntuiTrak Powerlink System infringe five of Lifeport’s U.S. patents. The five patents are scheduled to expire on various dates between 2013 and 2015.