News & Analysis as of

Abbreviated New Drug Application (ANDA) Claim Construction

Robins Kaplan LLP

Boehringer Ingelheim Pharms. Inc. v. Apotex Inc.

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Tradjenta® (linagliptin) - Case Name: Boehringer Ingelheim Pharms. Inc. v. Apotex Inc., Civ. No. 23-685-CFC, 2025 WL 71979 (D. Del. Jan. 10, 2025) (Connolly, J.)  Drug Product and Patent(s)-in-Suit: Tradjenta® (linagliptin);...more

Robins Kaplan LLP

Alcon Inc. v. Padagis Israel Pharms. Ltd.

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Simbrinza® (brinzolamide / brimonidine) - Case Name: Alcon Inc. v. Padagis Israel Pharms. Ltd., Civ. No. 22-1422-WCB, 2025 WL 457119 (D. Del. Feb. 5, 2025) (Bryson, C.J.)  Drug Product and Patent(s)-in-Suit:  Simbrinza®...more

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

MoFo Life Sciences

In Patent Prosecution, You Have the Right to Remain Silent. Anything You Say Can and Will Be Used Against You in the Court of Law

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While a Miranda warning isn’t given prior to starting substantive examination, perhaps it should be. In Azurity Pharmaceuticals, Inc. v. Alkem Laboratories, Ltd., a precedential decision issued on April 8, 2025, the Federal...more

Alston & Bird

Patent Case Summaries | Week Ending April 11, 2025

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Azurity Pharmaceuticals, Inc. v. Alkem Laboratories Ltd., No. 2023-1977 (Fed. Cir. (D. Del.) Apr. 8, 2025). Opinion by Murphy (sitting by designation), joined by Moore and Chen. Azurity owns a patent directed to non-sterile...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

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

BakerHostetler

A Later-Discovered Improvement to an Invention Cannot Be Used To Reach Back and Invalidate an Earlier-Filed Patent

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Novartis markets and sells a combination therapy of valsartan and sacubitril under the brand name Entresto® for the treatment of various forms of heart failure. MSN submitted an Abbreviated New Drug Application seeking...more

Akin Gump Strauss Hauer & Feld LLP

Federal Circuit: Written Description and Enablement Depend on What a Patent 'Claims,' Not What the Claims Cover

The Federal Circuit recently reversed a district court decision that found a patent that did not describe after-arising technology failed to satisfy the written description requirement. In so doing, the Federal Circuit...more

Robins Kaplan LLP

Melinta Therapeutics, LLC v. Nexus Pharms., Inc.

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Minocin® (minocycline) - Case Name: Melinta Therapeutics, LLC v. Nexus Pharms., Inc., Civ. No. 21-2636, 2024 WL 4799896 (N.D. Ill. Nov. 15, 2024) (Kness, J.)  Drug Product and Patent(s)-in-Suit: Minocin® (minocycline);...more

DLA Piper

Case-Narrowing Decisions are a One-Way Street: Reviewing Exeltis USA v. Lupin Ltd.

DLA Piper on

Exeltis USA, Inc. and other parties (Exeltis) recently prevailed against Lupin Ltd. and Lupin Pharmaceuticals, Inc. (Lupin) in a patent infringement suit brought in the District of Delaware. After a three-day bench trial, the...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

Knobbe Martens

Teva v. Amneal Oral Arguments and Claim Construction Order: Recent Developments in the Ongoing Debate Over the Orange Book Listing...

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As the FTC continues to crack down on pharmaceutical manufacturers’ allegedly improper listing of patents in the FDA Orange Book, counsel for Teva and Amneal presented oral arguments in the Court of Appeals for the Federal...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

Knobbe Martens

Federal Circuit Says Extrinsic Evidence Should Have Been Considered in Claim Construction

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In a recent precedential opinion, the Court of Appeals for the Federal Circuit vacated an infringement judgement against Mylan (Actelion Pharmaceuticals Ltd. v. Mylan Pharmaceuticals Inc., No. 2022-1889, Fed. Cir. Nov. 6,...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

Robins Kaplan LLP

AstraZeneca AB v. Mylan Pharms., Inc. Symbicort® (Budesonide and Formoterol)

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Case Name: AstraZeneca AB v. Mylan Pharms., Inc., No. 22-cv-35, 2022 WL 2707729 (N.D.W.V. July 12, 2022) (Bailey, J.) Drug Product and Patent(s)-in-Suit: Symbicort® (budesonide and formoterol); U.S. Patent No. 11,311,558...more

Fitch, Even, Tabin & Flannery LLP

Expert Testimony May Establish Written Description Support for Negative Claim Limitation

On January 3, in Novartis Pharmaceuticals Corporation v. Accord Healthcare, Inc., the Federal Circuit found written description support for a negative claim limitation, even though the negative claim limitation did not have...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

Harris Beach Murtha PLLC

"About" Patent Claim Construction: Par v. Hospira

The use of the word “about” in a patent claim as part of a numeric range might permit the patent holder to preclude competitor formulations falling outside the approximate range, as illustrated in a fairly recent decision Par...more

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

Federal Circuit Appeals from the PTAB and ITC: Summaries of Key 2020 Decisions

[co-author: Kathleen Wills] Last year, the global COVID-19 pandemic created unprecedented challenges for American courts. By making several changes, however, the U.S. Court of Appeals for the Federal Circuit was able to...more

Fox Rothschild LLP

Judge Andrews Issues Markman Opinion Construing Five Remaining Terms In Dispute In Six Patents-In-Suit In Hatch-Waxman Action

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By Memorandum Opinion entered in Allergan USA, Inc. et al. v. Aurobindo Pharma Ltd., et al., Civil Action No. 19-1727-RGA (D.Del. January 11, 2021), The Honorable Richard G. Andrews construed the five (5) remaining terms in...more

McDonnell Boehnen Hulbert & Berghoff LLP

Bracco Diagnostics Inc. v. Maia Pharmaceuticals, Inc. (Fed. Cir. 2020)

Stipulating to infringement after a contrary claim construction is a conventional stratagem for a losing party to have a final judgment that can be challenged before the Federal Circuit.  The risk of course, is that if the...more

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