News & Analysis as of

Patents Written Descriptions Appeals

Foley & Lardner LLP

Jepson Claim Format Does Not Avoid Written Description Scrutiny

Foley & Lardner LLP on

Current written description jurisprudence can make it difficult to obtain broad antibody patents, leading practitioners to explore alternative claiming strategies in an effort to bypass the limited scope afforded under the...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

Cooley LLP

End of the Road for Jepson Format Claims in the Life Sciences?

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In In re: Xencor, Inc., the US Court of Appeals for the Federal Circuit confirmed that the limiting preamble of a Jepson claim must be supported by the specification with “sufficient written description.” In its decision, the...more

Lathrop GPM

Significant Federal Circuit Decision Redefines Prior Art Requirements

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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...

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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

McDermott Will & Emery

Even Jepson Preambles Require Written Description Support

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The US Court of Appeals for the Federal Circuit found a Jepson claim unpatentable where the specification did not provide adequate written description for the portion of the claim purporting to recite what was already well...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: In re: Xencor, Inc.

In re: Xencor, Inc., Appeal No. 2024-1870 (Fed. Cir. Mar. 13, 2025) Our case of the week is an appeal from a decision of the Appeals Review Panel of the Patent Trial and Appeal Board, concerning Xencor’s patent application...more

McDermott Will & Emery

Eye-Catching: Biosimilars Injunction Prevails

Addressing a preliminary injunction in patent litigation related to the Biologics Price Competition and Innovation Act (BPCIA), the US Court of Appeals for the Federal Circuit upheld the district court’s grant of a...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Regeneron Pharmaceuticals, Inc. v. Mylan Pharmaceuticals Inc.

Regeneron Pharmaceuticals, Inc. v. Mylan Pharmaceuticals Inc., Appeal Nos. 2024-1965, -1966, -2082, -2083 (Fed. Cir. Jan. 29, 2025) Our Case of the Week is a 31-page decision that touches on a variety of issues, including...more

McDermott Will & Emery

Complex or Not Written Description Is Evaluated Against Claims

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The US Court of Appeals for the Federal Circuit reversed a district court’s ruling of invalidity for lack of written description, finding that the district court erred in its analysis of written description because patents...more

Alston & Bird

Patent Case Summaries | Week Ending January 10, 2025

Alston & Bird on

Novartis Pharmaceuticals Corp. v. Torrent Pharma Inc., et al., Nos. 2023-2218, -2220, -2221 (Fed. Cir. (D. Del.) Jan. 10, 2025). Opinion by Lourie, joined by Prost and Reyna. The FDA approved a New Drug Application from...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - January 2025 #2

In re Entresto (Sacubitril/Valsartan), Appeal Nos. 2023-2218, -2220, -2221 (Fed. Cir. Jan. 10, 2025) In our Case of the Week, the Federal Circuit revived Novartis’s US Patent No. 8,101,659 by reversing the district...more

Baker Botts L.L.P.

Third Quarter 2024 Federal Circuit Law Update

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Since serving as a Federal Circuit clerk, Michael Hawes has monitored that court's precedential opinions and prepares a deeply outlined index by subject matter (invalidity, infringement, claim construction, etc.) of relevant...more

McDermott Will & Emery

Later-Filed, Earlier-Expiring Patent Not an ODP Reference

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Addressing invalidity due to obvious-type double patenting (ODP) based on later-filed-related patents, the US Court of Appeals for the Federal Circuit reversed a district court’s application of In re Cellect (Fed. Cir. 2023)...more

McDermott Will & Emery

Holy Pulmonary Hypertension, Batman: Method of Treatment Not Constrained by Safety and Efficacy

The US Court of Appeals for the Federal Circuit affirmed a district court’s holding that the asserted method of treatment patent was valid and infringed because safety and efficacy are not patent concerns. The Federal Circuit...more

Sheppard Mullin Richter & Hampton LLP

Parus Holdings, Inc. v. Google LLC, No. 2022-1269, 2022-1270 (Fed. Cir. Jun. 12, 2023)

This case concerns determining the prior art status of certain references in an inter partes review. The Federal Circuit considered whether the Patent Trial and Appeal Board (the “Board”) was correct in declining to consider...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - July 2023 #4

United Therapeutics Corporation v. Liquidia Technologies, Inc., Appeal Nos. 2022-2217, 2023-1021 (Fed. Cir. July 24, 2023) In the Federal Circuit’s only precedential patent case this week, the Court considered questions...more

McDermott Will & Emery

First Rule of the PTAB? Play by the Rules

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The US Court of Appeals for the Federal Circuit affirmed two Patent Trial & Appeal Board decisions holding the challenged claims unpatentable as obvious, even though the Board declined to consider evidence of antedating and...more

Bradley Arant Boult Cummings LLP

Is SCOTUS Looking to Change the Enablement Requirement for Patents?

The Supreme Court is set to hear oral arguments in Amgen, Inc. v. Sanofi (No. 21-757) on Monday, March 27, 2023. The highly contentious question before the high court focuses what an applicant must show to meet the enablement...more

McDermott Will & Emery

A Maze-Like Path and Laundry List Don’t Provide Written Description

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The US Court of Appeals for the Federal Circuit affirmed a Patent Trial & Appeal Board (Board) decision that there was insufficient written description in the asserted priority applications to support a genus claim because of...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - March 2023

Regents of the University of Minnesota v. Gilead Sciences, Inc., Appeal No. 21-2168 (Fed. Cir. Mar. 6, 2023) The Federal Circuit’s only precedential patent opinion this week focuses on the written description requirement...more

McDermott Will & Emery

Swing and a Miss: Failed Interferences Don’t Affect Later Ones

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The US Court of Appeals for the Federal Circuit affirmed the Patent Trial & Appeal Board’s (Board) interference decision finding that priority belonged to the junior party based on sufficiently corroborated reduction to...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Case - July 2022 #3

CareDx, Inc. v. Natera, Inc., Appeal Nos. 2022-1027, -1028 (Fed. Cir. July 18, 2022) - In its only precedential patent opinion this week, the Federal Circuit held patents directed to the detection of organ transplant...more

McDermott Will & Emery

Heightened Written Description Standard for Negative Limitations?

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Addressing the issue of negative claim limitations, the US Court of Appeals for the Federal Circuit granted a petition for panel rehearing, vacated its prior decision (authored by now-retired Judge O’Malley) and reversed the...more

Harris Beach Murtha PLLC

Federal Circuit Imposes Heightened Standard for Written Description Support of Negative Claim Limitations

In Novartis Pharmaceuticals Corp. v. Accord Healthcare, Inc., the U.S. Court of Appeals for the Federal Circuit (“Federal Circuit”) held patent claims invalid for lack of written description where a negative limitation was...more

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