Xerox, Canon Sued Over Computer Linkup Patents

Law360, New York (June 4, 2010, 4:16 PM EDT) -- Xerox Corp., Ricoh Electronics Inc., Canon USA Inc. and several other technology companies are facing a suit from a Texas electronics company claiming their printer products infringe two patents for linking computers to external devices.

Marshall, Texas-based Whetstone Electronics LLC filed a complaint Thursday in the U.S. District Court for the Eastern District of Texas, alleging that printers made by 14 defendants infringe U.S. Patent Numbers 6,337,746 and 6,618,157.

The '746 and '157 patents, issued in 2002 and 2003, respectively, both cover an interface card for...
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