News & Analysis as of

Appeals Patents Abbreviated New Drug Application (ANDA)

Knobbe Martens

Hard to Stomach: Things You Say to Prosecute a Patent Can and Will Be Used Against You

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AZURITY PHARMACEUTICALS, INC. v. ALKEM LABORATORIES LTD. Before Murphy, Moore, and Chen. Appeal from the United States District Court for the District of Delaware. Arguments and amendments made during prosecution of a parent...more

McDermott Will & Emery

Prosecution Disclaimer Alive and Well, Especially in Closed Claim

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The US Court of Appeals for the Federal Circuit affirmed a district court’s noninfringement determination, finding that the presence of a disclaimed compound in the accused product precluded infringement. Azurity Pharm., Inc....more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Azurity Pharmaceuticals, Inc. v. Alkem Laboratories Ltd.

Azurity Pharmaceuticals, Inc. v. Alkem Laboratories Ltd., Appeal No. 2023-1977 (Fed. Cir. Apr. 8, 2025) In our Case of the Week, the Federal Circuit affirmed that defendant Alkem’s proposed generic antibiotic did not...more

McDermott Will & Emery

What’s the (Re)issue? Patent Term Extensions for Reissue Patents

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Addressing the calculation of patent term extensions (PTEs) under the Hatch-Waxman Act, the US Court of Appeals for the Federal Circuit affirmed a district court decision that under the act the issue date of the original...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Actavis Labs. FL, Inc. v. United States

Actavis Labs. FL, Inc. v. United States, Appeal No. 2023-1320 (Fed. Cir. Mar. 21, 2025) Our Case of the Week, in the words of its author, Circuit Judge Stark, “is not actually a patent case. It is, instead, a tax case.” In...more

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

Federal Circuit: Reissue Patents Get PTE Based on the Original Patent’s Issue Date

On March 13, 2025, the U.S. Court of Appeals for the Federal Circuit affirmed a five-year patent term extension (“PTE”) for Merck’s sugammadex patent, holding that the district court had correctly calculated PTE based on the...more

WilmerHale

Federal Circuit Patent Watch: FDA Filing Can Create Personal Jurisdiction; “Compelling” Arguments that Reverse Doctrine of...

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Precedential and Key Federal Circuit Opinions - STEUBEN FOODS, INC. v. SHIBUYA HOPPMANN CORPORATION [OPINION] (2023-1790, 1/24/2025) (Moore, Hughes, Cunningham) - Moore, Chief J. The Court reversed the district...more

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

Federal Circuit Reverses Decision Finding Lack of Written Description for Patent Claiming a Pharmaceutical Composition Comprising...

The Federal Circuit recently reversed a District of Delaware decision that invalidated claims of Novartis’s Orange Book listed patent, U.S. Patent No. 8,101,659 (the “’659 patent”), for its blockbuster drug Entresto®, a...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - December 2024 #3

CloudofChange, LLC v. NCR Corp., Appeal No. 2023-1111 (Fed. Cir. Dec. 18, 2024) In our Case of the Week, the Federal Circuit addressed the question of divided infringement in the context of system claims. In its...more

McDermott Will & Emery

The Devil Is in the Details: Bioequivalence, In Vitro Testing Not Enough to Establish Infringement

McDermott Will & Emery on

Addressing for the first time the issue of whether bioequivalence data and in vitro testing can show that an abbreviated new drug application (ANDA) product with different immediate and delayed release portions infringed on a...more

Sheppard Mullin Richter & Hampton LLP

Federal Circuit Upholds Rifaximin Patent Rulings, Affirms ANDA Approval Restrictions

In Salix Pharmaceuticals, Ltd. v. Norwich Pharmaceuticals, Inc. 2023-1952 (Fed. Cir. April 11, 2024), this case involves appellate review of a district court’s findings regarding patent obviousness and infringement in...more

A&O Shearman

Federal Circuit affirms district court finding of no induced or contributory infringement of generic depression drug

A&O Shearman on

In H. Lundbeck A-S v. Lupin Ltd., Case No. 2022-1194 (Fed. Circ. December 7, 2023), Plaintiffs, H. Lundbeck A/S (“Lundbeck”) and Takeda Pharmaceutical Company Ltd., Takeda Pharmaceuticals U.S.A., Inc., Takeda Pharmaceuticals...more

McDermott Will & Emery

If the Label Is Skinny Enough – No Inducement Under Hatch-Waxman

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The US Court of Appeals for the Federal Circuit made explicit what has long been considered implicit based on Warner-Lambert and its progeny, namely, that plaintiffs asserting an induced infringement theory to bar the entry...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - December 2023 #2

VLSI Technology LLC v. Intel Corporation, Appeal No. 2022-1906 (Fed. Cir. December 4, 2023) In this week’s Case of the Week, the Federal Circuit vacated an approximately $2.2 billion damages award against appellant Intel...more

McDonnell Boehnen Hulbert & Berghoff LLP

Actelion Pharmaceuticals Ltd. v. Mylan Pharmaceuticals Inc. (Fed. Cir. 2023)

Proper construction of claim limitations reciting the chemical property of pH (which denotes the concentration of hydrogen ions in a solution as an indication of acidity) has arisen several times in district court and Federal...more

McDermott Will & Emery

Resorting to Extrinsic Evidence Is Necessary When Intrinsic Evidence Is Muddied

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The US Court of Appeals for the Federal Circuit determined that the limitation “a pH of 13 or higher” could not be construed using the asserted patents’ intrinsic evidence and therefore remanded to the district court with...more

Sheppard Mullin Richter & Hampton LLP

Amgen Inc. v. Sandoz Inc, No. 2022-1147 (Fed. Cir. Apr. 19, 2023)

This case is an appellate review of the district court’s findings regarding patent obviousness and priority date. Background Amgen produces and markets apremilast, a medication for the treatment of certain types of psoriasis...more

Sheppard Mullin Richter & Hampton LLP

2023 Federal Circuit Case Summaries

We are excited to share Sheppard Mullin’s inaugural quarterly report on key Federal Circuit decisions. The Spring 2023 Quarterly Report provides summaries of most key patent law-related decisions from January 1, 2023 to March...more

McDermott Will & Emery

Patent Law Principles Apply to Claim Scope: Orange Book Delisting and Listing and Regulations

The US Court of Appeals for the Federal Circuit ordered that the only Orange Book patent asserted in a lawsuit must be delisted since its claims were directed to the computer-implemented distribution system and not a method...more

Mintz - Intellectual Property Viewpoints

Federal Circuit Affirms Delisting of REMS System Patent from FDA Orange Book

On February 24, 2023, the U.S. Court of Appeals for the Federal Circuit, in Jazz Pharmaceuticals, Inc., v. Avadel CNS Pharmaceuticals, LLC, Case No. 23-1186, affirmed a decision from the District Court of Delaware directing...more

McDermott Will & Emery

File Like an Eagle: ANDA pH Specification Rules Infringement Inquiry

The US Court of Appeals for the Federal Circuit affirmed a district court’s finding of noninfringement in a Hatch-Waxman case under 35 U.S.C. § 271(e)(2) and § 271(a)-(b). The Court found that the alleged infringer’s...more

Fitch, Even, Tabin & Flannery LLP

Rehearing Reverses Earlier Federal Circuit Decision Finding Silence Supported Negative Claim Limitation

On June 21, in Novartis Pharmaceuticals Corporation v. Accord Healthcare, Inc., a reshuffled Federal Circuit panel reversed course on rehearing to find that a negative claim limitation was not supported by silence in the...more

McDermott Will & Emery

Long-Felt Need Not Felt Long Enough to Overcome Obviousness

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The US Court of Appeals for the Federal Circuit upheld a finding that patents covering Narcan, a naloxone-based intranasal opioid overdose treatment, were obvious despite evidence of long-felt need. Adapt Pharma Operations...more

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

Is Silence Disclosure?

On January 3, 2021, The Federal Circuit held in a 2-1 decision in Novartis Pharmaceuticals Corp. v. Accord Healthcare, Inc. (Fed. Cir. 2022) that the claims of Novartis’ U.S. Pat. No. 9,187,405 (“the ’405 patent”) met the...more

McDermott Will & Emery

Rounding Error: Intrinsic Evidence Informs Plain and Ordinary Meaning

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Vacating a stipulated infringement judgment based on an incorrect claim construction, the US Court of Appeals for the Federal Circuit explained that it is improper to isolate claim language from the intrinsic evidence when...more

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