Blue Spike filed four separate suits against seven defendants, including Accu-Time Systems, Animetrics, Anviz Global, and AOptix Technologies, Asure Software, Biometrika (and its reseller Fulcrum Biometrics), and Daon alleging that the defendants’products and services, ranging from time and attendance systems, facial recognition technology, and software development kits, infringe 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.  1/8, Eastern District of Texas, 6:2013cv00037; 6:2013cv00038; 6:2013cv00039; 6:2013cv00040; 1/9, Eastern District of Texas, 6:2013cv00044; 6:2013cv00045; 1/10, Eastern District of Texas, 6:2013cv00047.