Philips, VW, Others Sued Over LED Patent

Law360, New York (November 11, 2009, 5:43 PM EST) -- Light Transformation Technologies LLC has launched patent infringement suits against more than a dozen companies — including Volskwagen Group of America Inc., Philips Lumileds Lighting Co. LLC and Digi-Key Corp. — that make lenses and other optical products for use with light-emitting diodes.

The two lawsuits, filed Wednesday in the U.S. District Court for the Eastern District of Texas, accuse the defendants of infringing U.S. Patent Number 6,543,911, titled “Highly efficient luminaire having optical transformer providing precalculated angular intensity distribution and method therefore.”

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