The US Court of Appeals for the Federal Circuit reiterated that while assignor estoppel prevents a party that assigned a patent to another party from later challenging the validity of the assigned ...

Assignor estoppel is “an equitable doctrine that prevents one who has assigned the rights to a patent (or patent application) from later contending that what was assigned is a nullity.” Makes sense, ...

Doretha Clemons, Ph.D., MBA, PMP, has been a corporate IT executive and professor for 34 years. She is an adjunct professor at Connecticut State Colleges & Universities, Maryville University, and ...

The Supreme Court on Tuesday issued its opinion in Minerva Surgical Inc. v. Hologic Inc. The case sought to abolish the doctrine of patent assignor estoppel, which prohibits an inventor from ...

“A retrospective change would mean a windfall for assignors and radically undercutting the return on the deal for a quarter century’s worth of assignees.” – Matthew Wolf, arguing for Hologic The U.S.

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“The status of the status quo is far from clear…. The Supreme Court has considered the applicability of assignor estoppel in only a handful of cases—none of them recent—and those precedents don’t ...

The US Supreme Court’s ruling in Minerva v Hologic might force R&D businesses to rethink their assignment policies and litigation strategies Counsel have mixed feelings on the US Supreme Court’s ...

Now, nearly a century later, the Court ruled that it is time to narrow the scope of assignor estoppel. In its decision authored by Justice Elena Kagan, the Court concluded that assignor estoppel ...

In Minerva Surgical v. Hologic, the U.S. Supreme Court limited the scope of the patent law concept of assignor estoppel in several key respects. Despite those limitations, assignor estoppel may remain ...

We collaborate with the world's leading lawyers to deliver news tailored for you. Sign Up for any (or all) of our 25+ Newsletters. Some states have laws and ethical rules regarding solicitation and ...

The Supreme Court on Tuesday narrowed the doctrine of patent assignor estoppel, which prohibits an inventor from assigning a patent to someone and then later contending in litigation that the patent ...