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Minerva Surgical, Inc., Petitioner v. Hologic, Inc., et al.

  1. February 23, 2021

    Justices Told Assignor Estoppel Is 'Uncommonly Lawless'

    Minerva Surgical Inc. is arguing that the assignor estoppel doctrine, which bars inventors who sell their patent rights from challenging the patent's validity in district court, is "uncommonly lawless" and should be abolished by the U.S. Supreme Court.

  2. January 12, 2021

    Assignor Estoppel Case Could Fuel More Patent Attacks

    A case recently taken up by the U.S. Supreme Court has the potential to create more opportunities for accused infringers to try to invalidate patents in court by allowing attacks in the relatively unusual situation where the challenger is the patent's inventor, attorneys say.

  3. January 08, 2021

    Justices To Review Assignor Estoppel In Patent Cases

    The U.S. Supreme Court on Friday agreed to hear a case calling for the abolition of the doctrine of assignor estoppel, which bars inventors who sell their patent rights from challenging the patent's validity in district court.

  4. October 08, 2020

    Minerva Takes Assignor Estoppel Fight To Supreme Court

    Minerva Surgical Inc. has asked the U.S. Supreme Court to abolish the doctrine of assignor estoppel, which bars inventors who sell their patent rights from challenging the patent's validity in district court.

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