In Hologic, Inc. v. Minerva Surgical, Inc.. [2019-2054, 2019-2081] (April 22, 2020), the Federal Circuit affirmed the district court’s determination that assignor estoppel does not bar the assignor from relying on our court’s affirmance of the Patent Trial and Appeal … Continue reading Assignor Estoppel Cannot Resurrect Patent Invalidated in an IPR, but it Can Save Patent from Challenge in District Court