Barcelona-based Fractus SA has opened up a new litigation campaign, suing US wireless carriers AT&T (AT&T Mobility) (2:18-cv-00135), SoftBank (Sprint) (2:18-cv-00136), Deutsche Telekom (T-Mobile) (2:18-cv-00137), and Verizon (Cellco Partnership d/b/a Verizon Wireless) (2:18-cv-00138) in separate cases filed in the Eastern District of Texas. Each complaint asserts the same ten patents, seven from a family that Fractus characterizes as the “Fractus Multiband Array Patents” and three from a family characterized as the “Fractus Slim Triple Band Patents”. At issue in the cases are high-performance antennas sourced from “manufacturers like Amphenol, Kathrein, CommScope, and RFS” and allegedly incorporated into cellular base stations deployed throughout the carriers' wireless networks.