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CAFC Patent Litigation Estoppel

A&O Shearman

Federal Circuit Provides Guidance On Estoppel Provision Under 37 C.F.R. § 42.73(d)(3)(i)

A&O Shearman on

On July 26, 2024, the Court of Appeals for the Federal Circuit (“CAFC”) issued a precedential opinion reversing-in-part decisions from the U.S. Patent Trial and Appeal Board (“PTAB”) in two inter partes reexamination...more

Dinsmore & Shohl LLP

Estoppel Principles in Patent Office Proceedings

Dinsmore & Shohl LLP on

On July 26, 2024, in a precedential decision, the U.S. Court of Appeals for the Federal Circuit (CAFC) upheld and expounded on the estoppel provision set forth in 37 C.F.R. § 42.73(d)(3)(i). The CAFC confirmed that the Patent...more

Rothwell, Figg, Ernst & Manbeck, P.C.

Uniloc v. Facebook: Federal Circuit Rules Against a Finding of Estoppel in Joinder

Earlier this month, in the precedential decision Uniloc 2017 LLC v. Facebook Inc., the Court of Appeals for the Federal Circuit (“the CAFC”) upheld the Patent Trial and Appeal Board (“the Board”) on the issue of estoppel (or...more

Foley & Lardner LLP

CAFC Affirms Finacea Gel Infringement Under Doctrine of Equivalents

Foley & Lardner LLP on

In Intendis GmbH v. Glenmark Pharmaceuticals Inc., USA, the Federal Circuit affirmed the district court decision that found infringement under the doctrine of equivalents. This case shows that the doctrine of equivalents...more

Troutman Pepper

Estoppel Does Not Attach When Petitioner’s Grounds Are Denied As Redundant

Troutman Pepper on

Under 35 U.S.C. 315(e)(1), a petitioner in an inter partes review of a claim in a patent that has resulted in a final written decision by the Board may not request or maintain a proceeding before the Patent Office with...more

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