MicroUnity sues AMD over patent infringement

MicroUnity Systems Engineering Corp. sued Advanced Micro Devices Inc. for allegedly infringing 12 patents covering computer-chip technology.

In a suit filed in federal court in Texas, closely held MicroUnity asked for an order blocking Sunnyvale, Calif.-based AMD from marketing or selling products that use the technology, including AMD’s Athlon, Opteron and K6 chip lines.

MicroUnity sued Dell Inc. and Intel Corp. in the same court in March 2004, accusing them of infringing seven of the same patents. Intel agreed to pay $300 million to settle the dispute.

Santa Clara, Calif.-based MicroUnity also sued Sony Corp. last year. The case is pending.