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Assignor Estoppel Comes with Limits: Consistency is Key

In earlier posts, we reported that the Supreme Court granted Minerva Surgical, Inc.’s petition for a writ of certiorari on the question of “whether a defendant in a patent infringement action who assigned the patent, or is in...more

Petitioner And Amicus Briefs Lay Out Arguments In Supreme Court Fight Over Assignor Estoppel

As previously reported, in January 2021, the Supreme Court granted a petition for a writ of certiorari filed by Minerva Surgical, Inc. on the question of “whether a defendant in a patent infringement action who assigned the...more

What Is The Future Of The Doctrine Of Assignor Estoppel In Patent Validity Challenges?

On January 8, 2021, the Supreme Court granted a petition for a writ of certiorari filed by Minerva Surgical, Inc. on September 30, 2020. The question presented is “whether a defendant in a patent infringement action who...more

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