Time Warner, Charter, and other cable companies are being sued by Rockstar for using Cisco equipment, like modems and cable boxes that run on standards such as DOCSIS.

“Cisco and Nortel were working and selling products in the same market for decades,” points out Cisco’s outside lawyer on the case, John Desmarais. “They never bothered each other, never sued each other, never threatened each other with infringement. If Nortel really thought those patents were infringed by Cisco, you think something would have been brought up.”

via Cisco moves to fend off Rockstar patent assault on its customers | Ars Technica.