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Petition for Writ of Certiorari › Patent Infringement › Patent Act

Snell & Wilmer

Supreme Court Grants Certiorari to Resolve Long-Running Debate on Assignor Estoppel

Snell & Wilmer on

Last Friday, the U.S. Supreme Court granted certiorari in Minerva Surgical v. Hologic, thereby agreeing to resolve a long-running debate on patent law’s doctrine of assignor estoppel. Minerva Surgical has asked the Court to...more

Bradley Arant Boult Cummings LLP

High Court to Review Whether Assignor Estoppel Prevents Assignor from Filing an IPR or Relying on a Prior Invalidity Decision

Bradley Arant Boult Cummings LLP on

Last spring in Hologic, Inc. v. Minerva Surgical, Inc., the Federal Circuit ruled that the doctrine of assignor estoppel does not prevent an assignor from lodging a validity challenge of either patent in an IPR proceeding. In...more

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