Assignor vs. Assignee In contrast with an assignor, an assignee is the person or entity that receives property or rights under the terms of a contract.

Hochman: The Precedent is Not Well-Settled Hochman was met with considerable resistance from the justices, who challenged Minerva’s argument that “assignor estoppel undermines, rather than ...

[author: Cecilia Choy, Law Clerk] 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 ...

And, because assignor estoppel also does not preclude the assignor from relying on a prior invalidity decision, Minerva was entitled to rely on the invalidity decision from the ʼ183 IPR.

The U.S. Court of Appeals for the Federal Circuit (CAFC) today, in a precedential decision, revisited its 2020 holding that the doctrine of assignor estoppel bars Minerva Surgical, Inc. from ...

The PTAB rejected Athena’s argument by stating that assignor estoppel was not a basis for denying an IPR petition under § 311 (a). The statute provides that “a person who is not the owner of ...

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 ...

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.

In certain circumstances, LIFW has acquired the assignor’s 50% interest up-front by purchasing the assignor’s contractual right to collect at the time of recovery.