Federal Circuit Overturns Supplemental Jurisdiction Over Claims of Breach of Fiduciary Duty
In a recent decision from the Federal Circuit in AngioScore, Inc. v. TriREME Medical LLC et al. the court found that a plaintiff’s claim for patent infringement and breach of fiduciary duty did not have the requisite “common nucleus of operative fact” for the district court to maintain supplemental jurisdiction over breach of fiduciary duty claims. In particular, this decision provided the Federal Circuit a rare opportunity to review the jurisdiction limits of a district court in a case involving federal patent infringement claims and state law claims for breach of fiduciary duty aiding and abetting and unfair competition by an independent director and companies he co-founded which developed a competitive product to a product marketed by the plaintiff corporation AngioScore, Inc.