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Jury verdict: all patents valid, infringement on both sides.

On April 27, 2012, the jury returned a verdict in Power Integrations, Inc. v. Fairchild Semiconductors International, Inc., et al., C.A. No. 08-309-LPS. The case involved infringement allegations by both the plaintiff and the defendants involving a total of six patents related to DC output power supplies or power converters. The jury found that Fairchild literally infringed, and induced the infringement of, two of Power’s four asserted patents (U.S. Patents No. 6,249,876 and 6,107,851). Power was found to have infringed under the Doctrine of Equivalents one of Fairchild’s two asserted patents (U.S. Patent No. 7,259,972). The jury found that none of the asserted patents were invalid as anticipated or obvious. Because this case was bifurcated, willfulness and damages have not yet been tried.


Power Integrations, Inc. v. Fairchild Semiconductor Int’l, Inc., et al., C.A. No. 08-309-LPS (D. Del. Apr. …

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