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Supreme Court Limits Assignor Estoppel, Making Some Patents Easier to Challenge in Court

In a 5-4 decision issued on June 29, 2021 in Minerva Surgical, Inc. v. Hologic, Inc., the Supreme Court has upheld but limited the doctrine of assignor estoppel, an equitable doctrine preventing an inventor from challenging the validity of a patent he or she has assigned.

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Second Circuit Holds Patent No-Challenge Clause Unenforceable

Practices: Intellectual Property Transactions

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