Fed. Circ. Reverses Altair Loss In Light Patent Suit

Law360, New York (March 9, 2011, 6:12 PM EST) -- The Federal Circuit on Wednesday overturned a summary judgment loss for Altair Engineering Inc. in a suit accusing rival LEDdynamics Inc. of infringing a lighting patent.

Altair was not judicially estopped during the course of the case from changing its theory of why LEDdynamics' product infringed, according to a three-judge panel of the U.S. Court of Appeals for the Federal Circuit.

Altair changed its description of LEDdymamics' product after a claims construction ruling went against it.

“While Altair may not ultimately prevail in its infringement suit...
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