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Two Ways High Court Could Reshape Patent Assignor Estoppel

April 15, 2021

By David M. Fox, & Chris Kennerly

On April 21, the U.S. Supreme Court will hear oral arguments in Minerva Surgical Inc. v. Hologic Inc. The case turns on application of assignor estoppel, a centuries-old doctrine that precludes assignors and their privies from attacking the validity of the patent rights they assign.

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This article originally appeared in Law360.

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Image: David M. Fox
David M. Fox
Associate, Litigation Department
Image: Chris Kennerly
Chris Kennerly
Partner, Litigation Department