In a patent dispute involving the differentiation of adipose-derived stem cells, district court judgment finding that defendants were not co-inventors of the patent in question and granting a misjoinder motion is affirmed where there is clear and convincing evidence that plaintiff’s researchers conceived of each claim of their invention through contemporaneous corroboration before the arrival of defendants at the university.    

Read Univ. of Pittsburgh of the Commonwealth System of Higher Education v. Hedrick, No. 08-1468

Appellate InformationAppeal from the United States District Court for the Central District of California.Decided: July 23, 2009

JudgesBefore MAYER, RADER, and BRYSON, Circuit Judges.Opinion by MAYER, Circuit Judge.

CounselFor Plaintiff: Glenn J. Pfadenhauer, Williams & Connolly LLC. For Defendant: John Allcock, DLA Piper LLP.

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