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Disclaimers Prior Art

Haug Partners LLP

Narrowing the Disclaimer Doctrine: Federal Circuit Cabins the Reach of Disclaimers in the IPR Context

Haug Partners LLP on

OVERVIEW - The United States Court of Appeals for the Federal Circuit recently affirmed three Inter Partes Review (IPR) final written decisions of the U.S. Patent Trial and Appeal Board (“the Board”) where the Board...more

Fenwick & West LLP

Rescinding a Specification Disclaimer Introduces New Matter

Fenwick & West LLP on

A recent case before the U.S. Court of Appeals for the Federal Circuit serves as an important reminder of the distinction between a disclaimer introduced in the specification of a patent and a disclaimer introduced during...more

Manatt, Phelps & Phillips, LLP

Patent Held Invalid—Specification Disclaimer Prevented Claim to Earlier Priority Date

In Akeva L.L.C., v. Nike, Inc., the Federal Circuit held that a disclaimer in a specification that excluded a particular embodiment prevented later claims in the continuation patents from claiming the excluded embodiment,...more

Akin Gump Strauss Hauer & Feld LLP

Eastern District of Texas Judge Holds that Statements Made to PTAB Constitute Disclaimer

On September 9, 2017, an Eastern District of Texas magistrate judge issued a report and recommendation holding that a plaintiff was estopped from asserting its patent infringement claims because statements made in response to...more

McDermott Will & Emery

Repeated Disparagement of the Prior Art in the Specification Can Operate as a Clear and Unmistakable Disavowal of Claim Scope -...

McDermott Will & Emery on

Addressing issues of claim construction, the United States Court of Appeals for the Federal Circuit affirmed the district court’s narrow construction based on a disclaimer in the specification. Openwave Systems, Inc., NKA...more

BakerHostetler

Patent Watch: Saffran v. Johnson & Johnson

BakerHostetler on

On April 4, 2013, in Saffran v. Johnson & Johnson, the U.S. Court of Appeals for the Federal Circuit (Lourie,* Moore, O'Malley) reversed the district court's judgment that Johnson & Johnson and Cordis Corp. infringed U.S....more

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