Spherix Filed Patent Infringement Lawsuit Against VTech Communications

(RTTNews) - Spherix Inc. (SPEX) announced Tuesday that it has filed suit against VTech Communications Inc. for patent infringement in the Northern District of Texas. The patents at issue in the litigation were recently acquired from Rockstar Consortium US LP, the successor to many important Nortel Networks patent assets and technology.

The patents included in the suit cover many cordless telephones, including patents dating to 1993. VTech claims to be the world's largest cordless telephone producer, including the production of phones for AT&T. VTech is reported to have over $2.6 billion of revenues during the claimed infringement period. VTech cordless phones are sold at Wal-Mart, Best Buy, Circuit City, Costco, Office Depot, Staples, Target and other locations.

The patents at issue were invented by former Nortel employees working in the U.S. and Canada. VTech claims an 80% US market share and has moved virtually all of its manufacturing to China.