SWIPLit

Supreme Court Determines New Limitations to Assignor Estoppel Doctrine

By Marsha Cotton and David G. Barker The Supreme Court upheld assignor estoppel in Minerva Surgical, Inc. v. Hologic, Inc., et al. but held that the Federal Circuit “failed to recognize the doctrine’s proper limits.” In doing so, the Court imposed new limitations on when the equitable doctrine applies in a patent case. The Court […]