Does the Presumption of Issue Preclusion Apply to PTAB Decisions? In the patent arena, decisions of the PTAB’s predecessors have been understood to have at least some preclusive effect for more than ...

For the second patent (i.e., the patent for which the IPR petition was denied), the Federal Circuit reviewed the district court’s summary judgment order holding that assignor estoppel bars the ...

Question: The building I live in is being sold and the manager gave me an estoppel agreement to sign. What is it for? Should I sign it? Answer: An estoppel agreement is a document that details a host ...

Jim Brogan, Brian Eutermoser and Janna Fischer discuss the ways that the unsuccessful IPR petitioner at the Patent Trial and Appeal Board still can challenge validity in subsequent district court ...

Editor's note: David G. Muller is an attorney with the law firm of Becker & Poliakoff, P.A., which represents community associations throughout Florida, with offices in Naples, Fort Myers and 11 other ...

In his Patent and Trademark Law column, Rob Maier discusses the recent Supreme Court case 'Minerva Surgical v. Hologic,' and writes that "while the court rejuvenated the aging doctrine, it also ...

Q: I recently closed on my condo purchase. I signed a form called an estoppel certificate. The closer didn’t really explain well what it was. What is it that I signed? A: An estoppel certificate is a ...

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 ...