Federal Circuit Affirms Decision For National Instruments In Patent Suit Vs. Mathworks

By Marius Meland (September 7, 2004, 12:00 AM EDT) -- The U.S. Court of Appeals for the Federal Circuit has affirmed the judgment of infringement of three National Instruments patents by Massachusetts-based The MathWorks, Inc. and found a fourth patent valid but not infringed.

The opinion upholds an earlier decision by District Judge T. John Ward of the District Court for the Eastern District of Texas (Marshall Division), who let stand the jury's January 2003 verdict finding validity and infringement of National Instruments' patents.

The judge issued an order forbidding the sale of The MathWorks Simulink software product once any appeal has been disposed of in favor of National Instruments....

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