NPE Status Non Practicing Entity Declaratory Judgment No See case in Lex Machina Civil Action 1:13-cv-01632 Filing Date Oct 1, 2013 Venue D.Del. US Patent No 5557677 5768509 5790793 5960032 6131032 6170073 6977944 7136392 7343011 7450957 7496674 8078200 RE41490 RE43306 Patent Asserters: Patent Asserter Intellectual Ventures I LLC 1 Acquired patents Alleged Infringers: T-Mobile USA, Inc. T-Mobile USA, Inc.