Power Integrations, Inc. V. Fairchild Semiconductor

  • Jul 10 2018
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  • Category: News
Power Integrations sued Fairchild Semiconductor Corporation and Fairchild (Taiwan) Corporation (collectively “Fairchild”) for infringement of U.S. Patent Nos. 6,212,079 (“the ’079 patent”) and 6,538,908 (“the ’908 patent”) relating to switching regulators in power supply controller chips used in power supplies, such as chargers for electronic devices. A jury found Fairchild infringementinfringed claims of both the ’079 patent and the ’908 patent under the doctrine of equivalents. In a second trial, a jury awarded damages of roughly $140 million, finding that the entire market value rule applied in calculating damages for infringement of the ’079 patent. The district court denied Fairchild’s motions for judgment as a matter of law. Fairchild appeals. The CAFC affirms the district court’s judgments of infringement and vacates the damages award and remands for further proceedings, concluding that the entire market value rule cannot be used here to calculate damages.