Telecommunications Research Laboratories (TR Labs) fka Alberta Telecommunications Research Centre (ATRC)  filed suit against Charter Communications, Earthlink, Masergy Communications, and Zayo Group, alleging that the defendants  infringe eight patents related to network provisioning and restoration.   ATRC and TR Labs have filed nine prior suits since November 2005 against over fifteen defendants including AT&T, Dell, Samsung, Sony, Texas Instruments, and Verizon.  9/14, Eastern District of Texas, no judge yet assigned, 2:2012cv00599.