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Synopsys Tells Justices Fed. Circ. Ignored Law, Precedent

Law360, New York (December 5, 2017, 10:04 PM EST) -- Synopsys Inc. has urged the U.S. Supreme Court to review a pair of Federal Circuit patent principles it says ignore the Patent Act and high court precedent, yet were applied by the appellate court to keep in place a $36 million infringement judgment in favor of Mentor Graphics.

In a 50-page certiorari petition filed on Nov. 30, Synopsys argued that it was unfairly kept from challenging the validity of Mentor Graphics Corp.’s computer emulator technology patent based on the doctrine of assignor estoppel — which holds...
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