News & Analysis as of

Assignor Estoppel Patents

Medtronic v. Robert Bosch – Has the Federal Circuit closed the door on reviewing IPR institution decisions?

On October 20, 2016, the Federal Circuit issued yet another opinion finding that the Patent Trial and Appeal Board’s decisions related to the institution of an inter partes review (IPR) are not subject to judicial review. ...more

Federal Circuit Review | October 2016

Withdrawal of Claims During Prosecution Can Trigger Prosecution History Estoppel In UCB, Inc. v. Yeda Research and Development Co., Ltd., Appeal No. 2015-1957, the Federal Circuit held that prosecution estoppel can apply even...more

CAFC’s Husky Decision Makes Sledding Tougher for Patent Owners in PTAB Appeals

The Federal Circuit recently determined that it lacked jurisdiction to review the Patent Trial and Appeal Board’s determination that assignor estoppel has no affect in an inter partes review (“IPR”). The majority’s decision...more

Federal Circuit Provides Two-Part Analysis for Determining Reviewability of PTAB Institution Decisions

The Federal Circuit in Husky Injection Molding Systems, Inc. v. Athena Automation Ltd., No. 2015-1726 (Fed. Cir. Sep. 23, 2016) recently dismissed Husky’s appeal from a final written decision in IPR. The court found it...more

Assignor Estoppel Bars an Invalidity Challenge in District Court but is Not Available as a Defense in an Inter Partes Review...

On March 23, 2016, the United States Court of Appeals for the Federal Circuit issued a decision in MAG Aerospace Industries, Inc., NKA MAG Aerospace Industries, LLC v. B/E Aerospace, Inc., No. 2015-1370. One of the issues...more

PTAB to Purchasers: “Caveat Emptor” - Esselte AB v. DYMO B.V.B.A.

by McDermott Will & Emery on

In a decision to institute inter partes review (IPR) in four separate but related matters, the Patent Trial and Appeal Board (PTAB or Board) found that the patent owner failed to provide sufficient support for its contention...more

An Unforeseen Obstacle: Consultants Can Prevent Validity Challenges Through the Use of the Assignor Estoppel Doctrine

Imagine hiring a consultant who designs a process, only to find that the process infringes a patent invented by the same consultant owned by someone else. How much worse would it be if your use of that consultant prevented...more

No Assignor Estoppel in AIA Inter Partes Review

by Latham & Watkins LLP on

The popularity of IPR proceedings will likely increase as assignor estoppel does not apply to IPRs. Inter Partes Review (IPR) proceedings have become a very popular method of challenging patent validity for actual and...more

IP Update, Vol. 16, No. 2, -- February 2013

by McDermott Will & Emery on

In This Issue: Patents - Supreme Court: State Court Has Jurisdiction over a Legal Malpractice Claim; Nothing Non-Obvious About Applying Pre-Existing Technology to the Internet; The Federal Circuit Is Not the...more

Patent Watch: Semiconductor Energy Lab. Co. v. Nagata

by BakerHostetler on

"[Neither the Declaratory Judgment Act nor Federal Circuit jurisprudence creates] a federal cause of action for assignor estoppel." On February 11, 2013, in Semiconductor Energy Lab. Co. v. Nagata, the U.S. Court of...more

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