Blue Spike filed eight separate suits against CBS Interactive, DERMALOG Identification Systems, Futronic Technology, IriTech, Nitgen & Company, Sonda Technologies, Speech Technology Center, and Suprema alleging that the defendants’ fingerprint-based biometric software and software that enables users to identify and engage media and content infringes four patents related to digital watermarking (7,346,472; 7,660,700; 7,949,494; 8,214,175).  Blue Spike has filed over 45 prior suits in the Eastern District of Texas since August 2012. 1/11, Eastern District of Texas, 6:2013cv00053; 6:2013cv00054; 6:2013cv00055; 6:2013cv00056; 6:2013cv00057; 6:2013cv00058; 6:2013cv00059; 6:2013cv00060.