Marc H. Hedrick, Prosper Benhaim, Hermann Peter Lorenz, and Min Zhu appeal the judgment of the United States District Court for the Central District of California finding that they were not co-inventors of U.S. Patent No. 6,777,231, and granting a misjoinder motion pursuant to 35 U.S.C. § 256. Univ. of Pittsburgh v. Hedrick, No. 2:04-cv-09014 (C.D. Cal. June 9, 2008). Because we agree that University of Pittsburgh researchers Adam Katz and Ramon Llull completed conception of the claimed invention before the appealing researchers contributed their efforts, we affirm.
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