Wi-Lan files lawsuit against Comcast, Time Warner Cable, Charter
Ottawa-based technology vendor Wi-Lan announced this morning that it has filed a patent infringement lawsuit against Time Warner Cable, Comcast and Charter Communications over the cable operators' use of cable modems.
Wi-Lan filed the lawsuit in the U.S. District Court for the Eastern District of Texas. The lawsuit claimed that cable operators have infringed and continue to infringe on its U.S. Patent No. 5,761,602 by offering for sale, selling, operating, advertising and marketing cable systems and cable modem products.
The patent was issued in 1998 and covers a "hybrid multichannel data transmission system utilizing a broadcast medium."
Wi-Lan said it's being represented by McKool Smith, a United States law firm that specializes in intellectual property litigation. McKool Smith is representing Wi-Lan in other patent infringement actions in the U.S. District Court for the Eastern District.
A spokeswoman for Comcast said that the company hadn't been served with the complaint and had no further comment, while Time Warner Cable declined to comment.
Wi-Lan has been active on the lawsuit-filing front this year. Last month, the company filed lawsuits over alleged wireless infringements by Sony, Ericsson, LG Electronics and Alcatel-Lucent.
Earlier in the year, Wi-Lan sued Apple, Acer, Dell, Hewlett-Packard, Lenovo and other companies over the use of Bluetooth mobile phones and PCs.
Wi-Lan has a portfolio of more than 970 issued or pending patents over a wide range of technologies, including 3G cellular handsets, Wi-Fi-enabled laptops, Wi-Fi/DSL routers, xDSL infrastructure equipment, WiMAX base stations and digital television receivers.