News & Analysis as of

Written Descriptions Patent Applications Prior Art

Wilson Sonsini Goodrich & Rosati

Method of Treatment Claim’s Limiting Preamble Must Satisfy the Written Description Requirement

On March 13, 2025, the U.S. Court of Appeals for the Federal Circuit issued a decision in the case of In Re: Xencor, Inc. In this Appeal from the Appeals Review Panel of the Patent Trial and Appeal Board (ARP), with regard to...more

Morgan Lewis

Priority Catch-22: Federal Circuit Chills Design Patent with Rejection of Priority Claim

Morgan Lewis on

The US Court of Appeals for the Federal Circuit recently issued a decision that highlights a risk in design patent prosecution—specifically, attempting to claim priority to a utility application. In re Floyd, the Federal...more

Goodwin

The Court of Appeals for the Federal Circuit’s In Re Riggs Decision: 35 USC 102(e) Prior Art Requires Written Description Support...

Goodwin on

On March 24, 2025, the US Court of Appeals for the Federal Circuit (Federal Circuit) issued a decision titled In Re: Riggs (the Riggs decision) that vacated a decision of the Patent Trial and Appeal Board (PTAB) of the US...more

Lathrop GPM

Significant Federal Circuit Decision Redefines Prior Art Requirements

Lathrop GPM on

Last week a remarkably interesting Federal Circuit case was decided concerning whether an asserted reference was properly shown to qualify as prior art in the rejection of a pending patent application. The pending application...more

A&O Shearman

Federal Circuit Clarifies Requirements For A Prior Art Reference’s Entitlement To The Filing Date Of A Provisional Application To...

A&O Shearman on

On March 24, 2025, the U.S. Court of Appeals for the Federal Circuit (“CAFC”) issued an opinion vacating and remanding a decision of the U.S. Patent Trial and Appeal Board (the “Board”) that a published patent application...more

Bradley Arant Boult Cummings LLP

Searching for Claim Support in a Patent Specification? You Better Blaze a Trail

Last month the Federal Circuit affirmed a PTAB inter partes review (IPR) decision finding that the University of Minnesota’s patent claim directed to the anti-cancer drug sofosbuvir was not adequately supported by the written...more

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

Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2022 Decisions

As part of the recovery from the global COVID-19 pandemic, the U.S. Court of Appeals for the Federal Circuit took steps to return to normal operations. It began requiring live oral arguments in August 2022 and, by November,...more

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

2021 PTAB Year in Review: Analysis & Trends

[co-author: Jamie Dohopolski] Love it or hate it, ignore the USPTO Patent Trial and Appeal Board (PTAB) at your peril. The introduction of the PTAB as part of the America Invents Act over ten years ago has forever changed...more

Akin Gump Strauss Hauer & Feld LLP

Federal Circuit Finds Written Description for a Claimed Range Not Met by Specific Examples Within the Range

In a recent decision issued in Indivior UK Limited v. Dr. Reddy’s Laboratories, the Federal Circuit affirmed a decision from the PTAB that a limitation to range of polymer weight percentages lacked written description support...more

Amundsen Davis LLC

Invention Disclosure Form: Why Does It Matter?

Amundsen Davis LLC on

One of the first things patent attorneys will do, when you speak with them about filing a patent application, is send you an invention disclosure form to be filled out. Many companies also complete invention disclosure forms...more

McDonnell Boehnen Hulbert & Berghoff LLP

PTAB Sets Preliminary Motions in Broad v. ToolGen Interference

On March 1st, the U.S. Patent and Trademark Office Patent Trial and Appeal Board (PTAB) issued its Order on the Preliminary Motions Lists submitted by Junior Party The Broad Institute, the Massachusetts Institute of...more

McDonnell Boehnen Hulbert & Berghoff LLP

PTAB Sets Preliminary Motions in CVC v. ToolGen Interference

On March 1st, the U.S. Patent and Trademark Office Patent Trial and Appeal Board (PTAB) issued its Order on the Preliminary Motions Lists submitted by Junior Party University of California/Berkeley, University of Vienna, and...more

McDonnell Boehnen Hulbert & Berghoff LLP

Supreme Court Denies Certiorari in Actavis Laboratories v. Nalproprion Pharmaceuticals

In the Supreme Court's recent clarifying campaign through the Federal Circuit's U.S. patent law jurisprudence, one section of the statute, 35 U.S.C. §112(a) has been noticeably left unscathed. Indeed, avoidance of this...more

Schwabe, Williamson & Wyatt PC

Fresh From the Bench: Latest Federal Circuit Court Cases

PATENT CASE OF THE WEEK - SimpleAir, Inc. v. Google LLC, Appeal No. 2016-2738 (Fed. Cir. 2018) - In SimpleAir, Inc. v Google LLC, the Federal Circuit vacated a district court’s motion to dismiss pursuant to Rule...more

Smart & Biggar

Understanding the similarities and differences between priority claims in Canada and the U.S.

Smart & Biggar on

A valid priority claim can allow a patent application to benefit from the filing date of an earlier patent application so as to exclude certain prior art from consideration. The recent decision of the U.S. Federal Circuit in...more

Knobbe Martens

Federal Circuit Relies on Robust Disclosure to Save Priority Date

Knobbe Martens on

On September 20, 2016, the U.S. Court of Appeals for the Federal Circuit issued an opinion affirming the summary judgement that Abbott’s U.S. Patent No. 5,344,915 (“the ’915 Patent”) was sufficiently supported by the written...more

McDonnell Boehnen Hulbert & Berghoff LLP

Yeda Research and Development Co. v. Abbott GmbH & Co. (Fed. Cir. 2016)

Before the Supreme Court's recent forays into the topic of subject matter eligibility in patent law, the most contentious line of cases (from the Federal Circuit) concerned the written description requirement of Section 112. ...more

McDonnell Boehnen Hulbert & Berghoff LLP

Dynamic Drinkware, LLC v. National Graphics, Inc. (Fed. Cir. 2015)

It is well accepted that in order to establish that a patent is entitled to claim priority to a previously filed provisional application, it must be shown that the claims of the patent have written description support in the...more

McDermott Will & Emery

Progressive Obtains No Insurance at Federal Circuit - Progressive Casualty Insurance Co. v. Liberty Mutual Insurance Co.

McDermott Will & Emery on

In a non-precedential decision, the U.S. Court of Appeals for the Federal Circuit affirmed several formal written decisions of the Patent Trial and Appeal Board (PTAB or Board) invalidating the appellant’s patents, while also...more

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