Mentor Graphics Sues To End USPTO's Inter Partes Review

Law360, Los Angeles (May 01, 2013, 5:49 PM ET) -- Mentor Graphics Corp. on Monday sued the U.S. Patent and Trademark Office in Virginia federal court, claiming the agency had exceeded its authority under the America Invents Act by instituting an inter partes review of one of its patents.

The suit claims the USPTO authorized a review of a Mentor Graphics patent requested by Synopsys Inc. despite the fact that Mentor Graphics had sued the petitioner's predecessor-in-interest, Emulation and Verification Engineering SA, for infringement of the patent several years before.

Mentor Graphics said the USPTO’s institution...
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