“’It is time for this court to consider en banc the doctrine of assignor estoppel as it applies both in district court and in the Patent Office’ in order to clarify this ‘odd and seemingly illogical ...

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 ...

With the deadline for amicus briefs now passed, counsel set out why the US Supreme Court should or shouldn’t preserve assignor estoppel in Minerva v Hologic The deadline for filing amicus briefs in ...

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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 ...

“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.

The doctrine of estoppel has recently been codified into Article 6 of the Supreme Court's judicial interpretation No 21 [2009], which says a technical solution abandoned by the patentee or applicant ...

Thus, a party may be precluded from advancing an argument in litigation that is "logically incompatible" with tax forms that the party signed. See Matter of Chimsanthia, 200 A.D.3d 450 (1st Dept. 2021 ...

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 ...