News & Analysis as of

Patent Prosecution History Appeals

McDermott Will & Emery

3D Chess at the Federal Circuit: Can't Walk Back Arguments in Prior Appeal or Prosecution History

In the second appeal to the US Court of Appeals for the Federal Circuit, the preamble term “three-dimensional spreadsheet” was found to be a limitation in the context of claims directed to organizing and presenting...more

McDonnell Boehnen Hulbert & Berghoff LLP

Horizon Pharma, Inc. v. Dr. Reddy's Laboratories Inc. (Fed. Cir. 2021)

Indefiniteness under U.S. patent law is a failure to satisfy the statutory requirements of 35 U.S.C. § 112(b), which reads:  "The specification shall conclude with one or more claims particularly pointing out and distinctly...more

McDonnell Boehnen Hulbert & Berghoff LLP

Vectura Ltd. v. GlaxoSmithKline LLC (Fed. Cir. 2020)

Trial courts tend to get more than the benefit of the doubt when their decisions are viewed under the "abuse of discretion" standard, and juries similarly are affirmed unless there isn't substantial evidence supporting their...more

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

Does the Term “Human Antibody” Include Humanized Antibodies?

In the context of Immunex’s patent on IL-4 antibodies, the Federal Circuit says yes. On October 13, 2020, the Federal Circuit affirmed the Patent Trial and Appeal Board’s (the “Board”) final written decision in...more

Haug Partners LLP

The Federal Circuit Says Prosecution History Was Insufficient to Overcome the Claims and Written Description for Claim...

Haug Partners LLP on

Baxalta Inc. v. Genentech, Inc., 2019-1527, (Fed. Cir. Aug 27, 2020) - In an appeal from the District of Delaware, the Federal Circuit (Judges Moore, Plager, and Wallach) vacated and remanded the district court’s judgment...more

Akin Gump Strauss Hauer & Feld LLP

Focusing on the Language Used in the Claims, the Federal Circuit Vacates a District Court’s Construction of the Terms “Antibody”...

The Federal Circuit recently vacated a district court’s construction of the terms “antibody” and “antibody fragment.” The court’s constructions were not consistent with the claim language, and nothing in the specification or...more

Knobbe Martens

Imaginary Slice of Accused Product Failed to Satisfy Structural Claim Limitation

Knobbe Martens on

NEVILLE v. FOUNDATION CONSTRUCTORS, INC. Before Lourie, O’Malley, and Chen. Appeal from the United States District Court for the Central District of California. Summary: The Federal Circuit affirmed a construction of...more

Knobbe Martens

The Definition of “Half-Liquid” Is Only Half Baked

Knobbe Martens on

IBSA INSTITUT BIOCHIMIQUE, S.A. V. TEVA PHARMACEUTICALS USA, INC. Before Prost, Reyna, and Hughes. Appeal from the District Court of Delaware - Summary: A term may be indefinite when the proposed construction is not...more

Brownstein Hyatt Farber Schreck

Federal Circuit Infers Disavowal, Limiting Scope of Chamberlain Patent

The Federal Circuit has issued another opinion arising from the patent conflict between The Chamberlain Group and Techtronic Industries—and, once again, a patent owned by Chamberlain suffered a major blow. In Techtronic...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

PTAB Strategies and Insights - September 2019: Words Matter in a Design Patent

It is important for petitioners and patent owners alike to understand the implications of Curver Luxembourg v. Home Expressions, which relied on prosecution history and the title to limit design patent claim scope....more

McDermott Will & Emery

When Is “Wherein” Clause Limiting? When It’s Material to Patentability

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit affirmed a district court’s finding, based largely on the prosecution history, that disputed “wherein” clauses were limiting and therefore the grant of a preliminary injunction...more

Knobbe Martens

The Doctrine of Equivalents May Apply Despite Restriction Requirements and Narrow Claiming

Knobbe Martens on

UCB, INC. v. WATSON LABORATORIES INC. Before Taranto, Schall, and Chen. Appeal from the United States District Court for the District of Delaware. Summary: Application of the doctrine of equivalents may not be barred...more

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