News & Analysis as of

Written Descriptions Pharmaceutical Patents Obviousness

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

Goodwin

Federal Circuit Affirms Injunction Against Samsung and Formycon in Aflibercept BPCIA Litigation

Goodwin on

On January 29, 2025, the U.S. Court of Appeals for the Federal Circuit affirmed the District Court for the Northern District of West Virginia’s entries of preliminary injunction preventing Samsung Bioepis Co., Ltd....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

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

American Conference Institute (ACI)

[Event] Paragraph IV Disputes Master Symposium - September 21st - 22nd, Chicago, IL

ACI’s 8th Annual Paragraph IV Disputes Master Symposium returns in person to Chicago on September 21-22! Join leading pharmaceutical patent litigators for brand name and generic drug companies to receive up-to-the-minute...more

McDonnell Boehnen Hulbert & Berghoff LLP

Novartis Pharmaceuticals Corp. v. Accord Healthcare, Inc. (Fed. Cir. 2022)

The Federal Circuit recently granted a panel rehearing and vacated a panel decision between these parties decided earlier this year (see Novartis Pharmaceuticals Corp. v. Accord Healthcare), and rendered a decision that...more

American Conference Institute (ACI)

[Event] 20th Advanced Summit on Life Sciences Patents - June 2nd - 3rd, New York, NY

ACI’s Advanced Summit on Life Sciences Patents is back in person on June 2–3 in New York City. Our reimagined 2022 conference will provide practical insights on how to implement bullet-proof patent prosecution tactics,...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

Haug Partners LLP

AztraZeneca AB v. Mylan Pharms. Inc.: Claim Construction of a Percentage Term Guided by the Written Description and Prosecution...

Haug Partners LLP on

On December 8, 2021, the Federal Circuit in AztraZeneca AB v. Mylan Pharms. Inc. held that the claim construction of a percentage term should “‘most naturally align[] with the patent’s description of the invention,’ as...more

Haug Partners LLP

No Clear Error to Find Lack of Written Description for a Method of Treatment Patent Despite Separate Disclosures of the Drug,...

Haug Partners LLP on

Biogen International GMBH, Biogen MA, Inc., v. Mylan Pharmaceuticals Inc. marks the Federal Circuit’s most recent interpretation of the 35 U.S.C. § 112 written description requirement in the Hatch-Waxman context. No....more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - December 2021 #2

AstraZeneca AB v. Mylan Pharmaceuticals Inc., Appeal No. 2021-1729 (Fed. Cir. Dec. 8, 2021) - Our Case of the Week again focuses on numerical values in claims. Last week we addressed a case involving whether there was...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - December 2021

Biogen International GMBH v. Mylan Pharmaceuticals Inc., Appeal No. 2020-1933 (Fed. Cir. Nov. 30, 2021) - For the second time in two weeks, our Case of the Week focuses on the written description requirement, in...more

American Conference Institute (ACI)

[Event] Paragraph IV Disputes Conference - November 9th - 10th, New York, NY

Join the conference that the “who’s who” of Hatch-Waxman litigators have designated as the forum which sets the standards for Paragraph IV practice. ACI’s Paragraph IV Litigation Conference is returning LIVE & IN-PERSON to...more

McDonnell Boehnen Hulbert & Berghoff LLP

Biogen Int'l GmBH v. Mylan Pharmaceuticals Inc. (N.D.W. Va. 2020)

The written description requirement has had a twenty-five year renaissance, particularly in the chemical and biotechnology arts as a way of restricting claim scope to what an inventor has actually invented (see Regents of the...more

American Conference Institute (ACI)

[Virtual Event] 18th Advanced Summit on Life Sciences Patents - August 5th - 6th, 9:00 am EDT

Perfect Your Patent Prosecution Strategies and Master the Patent Application Process in the U.S and Around the World. ACI’s 18th Global Summit on Life Sciences Patents virtual conference this August will provide practical...more

McDermott Will & Emery

Equivalent Disclosure Used to Satisfy Written Description Requirement

McDermott Will & Emery on

Invoking a newly minted equivalent disclosure doctrine, a panel of the US Court of Appeals for the Federal Circuit found that the written description requirement of § 112 was satisfied in the interest of arriving at a...more

Knobbe Martens

A “Substantially Equivalent” Disclosure May Satisfy the Written Description Requirement

Knobbe Martens on

NALPROPION PHARMACEUTICALS, INC. v. ACTAVIS LABORATORIES FL, INC. Before Prost, Lourie and Wallach. Appeal from the U.S. District Court for the District of Delaware. Summary: A “substantially equivalent” disclosure may...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - August 2019 #3

PATENT CASE OF THE WEEK - Nalpropion Pharmaceuticals, Inc. v. Actavis Laboratories, FL, Inc., Appeal No. 2018-1221 (Fed. Cir. Aug. 15, 2019) - This week’s Case of the Week focuses on issues relating to written...more

Foley & Lardner LLP

Lumigan Patents Upheld by Unexpected Results

Foley & Lardner LLP on

In Allergan, Inc. v. Sandoz, Inc., the Federal Circuit affirmed the district court decision that upheld the validity of the Allergan patents relating to Lumigan® 0.01% glaucoma eye drops. This decision shows that it is still...more

Robins Kaplan LLP

GENERICally Speaking - Vol. 4, No. 1

Robins Kaplan LLP on

The Hatch-Waxman Litigation and Life Sciences practice groups at Robins, Kaplan, Miller & Ciresi L.L.P. are pleased to offer the latest edition of their quarterly publication regarding ANDA patent litigation issues and the...more

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