Slew Of Tech Cos. Sued Over "Unenforceable" Patent

Law360, New York (November 28, 2007, 12:00 AM EST) -- A Texas-based inventor who had sued his own attorneys for alleged malpractice over a patent application is now asserting the same microprocessing patent against more than 90 computer technology companies and retailers – including Microsoft Corp., Sony Corp. of America and Wal-Mart Stores Inc.

Jerry David Harthcock filed the lawsuit Tuesday in a Texas federal court against MIPS Technologies Inc. and its licensees for allegedly violating his patent, U.S. Patent No. 6,347,368, for a micro-computing device. The patent purportedly covers technology used in microprocessors that power...
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