He is especially well-known in his hometown of Northampton, where the 1979 Konkrete Kids graduate was an athlete and a coach before getting into the officiating business. As an official, he umpired ...

An assignor is a person or entity who transfers rights or benefits to another party, the assignee. Read about the rights of the assignor vs. assignee.

Justice Thomas asked Wolf how Congress can address assignor estoppel when it’s not currently in the Patent Act, but Wolf said that Westinghouse made clear that Section 261 of the Patent Act ...

Hologic views assignor estoppel as a well-established common-law principle that has been an implicit part of our patent laws for 150 years.

While 'Minerva' limited assignor estoppel's scope, the doctrine remains alive and, in some industries, could remain commonplace, according to Robert Counihan and Eric Majchrzak of Fenwick & West.

Assignor estoppel does not apply if a later legal development renders the warranty given at the time of the assignment irrelevant, for example, changes to the standard for patent-eligible subject ...

In a June decision, the Supreme Court in Minerva Surgical v. Hologic, 141 S. Ct. 2298 (2021), breathed new life into the doctrine of assignor estoppel, a centuries-old doctrine based in ...

LIMITATIONS TO THE SCOPE OF ASSIGNOR ESTOPPEL. The Court then turned to the question of the appropriate scope of the doctrine, particularly when the assignment occurs before a patent issue.

The assignor, in order to protect their right to sue, must preserve the chose in action in the assignment agreement imposing an obligation upon the assignee so they will not refuse to give consent.

Federal courts have applied assignor estoppel in patent cases for more than a century, but the doctrine has faced significant criticism. In this case, Minerva, a medical-device maker, sought to ...

Specifically, the assignor’s declaration of its non-use of the company name, declaration attesting to the affiliate relationship between the assignor and the assignee, or evidence showing the assignor ...