Court Grants Injunction in National Instruments vs The MathWorks

6/26/2003 - National Instruments announced that the District Court for the Eastern District of Texas (Marshall Division) issued an order forbidding the sale of The MathWorks Simulink software product once any appeal has been disposed of in favor of National Instruments.

The Honorable T. John Ward upheld the jury's January 2003 verdict finding validity and infringement of U.S. Patent Nos. 4,901,221, 4,914,568 and 5,301,336. The patents relate to National Instruments LabVIEW software, which contains major innovations in programming design tools.

"We are pleased that the Court upheld the jury verdict," said Dr. James Truchard, NI president, CEO and cofounder. "LabVIEW has had a revolutionary impact on scientists and engineers with its innovative virtual instrumentation approach. We've invested heavily in the intellectual property in LabVIEW and the judge's ruling further protects our intellectual property."

National Instruments is currently offering the LabVIEW Simulation Interface Toolkit, which adds the power of the LabVIEW user interface to the Simulink environment. With the LabVIEW Simulation Interface Toolkit, design engineers can use LabVIEW-based user interfaces to intuitively control and view data within their control models. The toolkit gives The MathWorks customers a licensed manner to control and view Simulink data under the National Instruments patents currently at issue in the patent infringement lawsuit.

National Instruments has a second patent suit currently pending in the U.S. District Court for the Eastern District of Texas alleging infringement by The MathWorks of four additional LabVIEW patents held by National Instruments.

About National Instruments
National Instruments ( is a technology pioneer and leader in virtual instrumentation -- a revolutionary concept that has changed the way engineers and scientists approach measurement and automation. Leveraging the PC and its related technologies, virtual instrumentation increases productivity and lowers costs for customers worldwide through easy-to-integrate software, such as the NI LabVIEW graphical development environment, and modular hardware. For the past four consecutive years, FORTUNE magazine has named NI one of the 100 best companies to work for in America.

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