News & Analysis as of

Patents Hatch-Waxman Generic Drugs

Robins Kaplan LLP

Vanda Pharms., Inc. v. FDA

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Hetlioz® (tasimelteon) - Case Name: Vanda Pharms., Inc. v. FDA, Civ. No. 23-280 (TSC), 2025 WL 485401 (D.D.C. Feb. 13, 2025) (Chutkan, J.) Drug Product and Patent(s)-in-Suit: Hetlioz® (tasimelteon); U.S. Patent No. , a...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

Robins Kaplan LLP

Liquidia Techs., Inc. v. FDA

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Yutrepia® (treprostinil inhalation powder) - Case Name: Liquidia Techs., Inc. v. FDA, No. 24-2428 (D.D.C. Feb. 27, 2025) (Kelly, J.) Drug Product and Patent(s)-in-Suit: Yutrepia® (treprostinil inhalation powder) Nature of...more

Venable LLP

Spotlight On: Neulasta® (pegfilgrastim) / Fulphila® (pegfilgrastim-jmdb) / Udenyca® (pegfilgrastim-cbqv) / Ziextenzo®...

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Pegfilgrastim Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...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

Irwin IP LLP

Federal Circuit Finds Against Generics Where Hatch-Waxman's Full Five-Year Extension Fixes Delay For Pharmaceutical FDA-Review  

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Merck Sharp & Dohm B.V. v. Aurobindo Pharma USA, Inc. et al (Fed. Cir. March 13, 2025) - The Hatch-Waxman Act seeks to strike a balance in the pharmaceutical industry by incentivizing drugs makers to develop innovative...more

Eversheds Sutherland (US) LLP

Tax Bytes: Week of March 24, 2025

Tax developments - Actavis and deductible expenses - On March 21, 2025, the Court of Appeals for the Federal Circuit released a decision in Actavis Laboratories FL, Inc. v. United States, holding that taxpayers could...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

Fenwick & West LLP

A Recent Tax Ruling Has Made ANDA Litigation Less Burdensome for Generics

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In Actavis v. U.S., a case at the intersection of tax law and patent law, the Federal Circuit held that generic drug companies’ Hatch-Waxman litigation expenses are “ordinary and necessary business expenses” and can be...more

McDonnell Boehnen Hulbert & Berghoff LLP

Merck Sharp & Dohme B.V. v. Aurobindo Pharma USA, Inc. (Fed. Cir. 2025)

Early last year, Aurobindo, one of the Defendants* in ANDA litigation against Merck, advanced the proposition that in cases where a patent had been reissued patent term extension ("PTE") under 35 U.S.C. § 156 should be...more

American Conference Institute (ACI)

[Event] 21st Annual Conference on Paragraph IV Disputes - April 29th - 30th, New York, NY

Attend ACI's 21st Annual Conference on Paragraph IV Disputes and join leaders from brand and generic pharmaceutical companies, renowned outside counsel, esteemed members of the judiciary, government, and academia to: -...more

Fish & Richardson

Recent Decisions and FTC Challenges Dictate Caution When Listing Patents in the Orange Book

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In October 2023, Teva Pharmaceuticals filed a patent infringement lawsuit against Amneal Pharmaceuticals alleging that their generic version of Teva’s ProAir® HFA inhaler infringed upon the asserted claims of U.S. Patent Nos....more

Robins Kaplan LLP

New ANDA Cases - Winter 2024

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This chart summarizes the case name, presiding judge, drug, and patents-at-issue in all federal district court cases that are filed pursuant to the Hatch-Waxman Act. It also includes the same information for proceedings...more

Robins Kaplan LLP

ANDA Litigation Settlements - Winter 2024

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This chart summarizes the case name, drug, patents-in-suit, and publicly available terms for reported settlements in federal district court cases that are filed pursuant to the Hatch-Waxman Act....more

Robins Kaplan LLP

Galderma Labs., L.P. v. Lupin Inc.

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Oracea® (doxycycline USP) - Case Name: Galderma Labs., L.P. v. Lupin Inc., No. 2024-1664, 2024 WL 4998071 (Fed. Cir. Dec. 6, 2024) (Circuit Judges Moore, Linn, and Prost presiding; Opinion by Moore, C.J.) (Appeal from D....more

Foley & Lardner LLP

Federal Circuit Says Proper Orange Book-Listed Patent Must Claim Active Ingredient

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In Teva Branded Pharmaceutical Products R&D, Inc. v. Amneal Pharmaceuticals of New York, LLC, the Federal Circuit jumped on the bandwagon of scrutinizing the types of patents that can be listed in the Food & Drug...more

Womble Bond Dickinson

2024 Hatch-Waxman Year in Review

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In 2024, the Hatch-Waxman Act continued to play a critical role in the U.S. pharmaceutical landscape, driving the dynamics between brand-name drugmakers and generics. This landmark legislation, enacted to encourage innovation...more

McDermott Will & Emery

Transparency Is the Best Medicine: Device Parts Don’t Justify Orange Book Listing

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The US Court of Appeals for the Federal Circuit affirmed a district court’s delisting of patents from the Orange Book because the patent claims did not “claim the drug that was approved” or the active ingredient of the drug...more

DLA Piper

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

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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

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

Federal Circuit: Patent Must Claim Active Ingredient for Orange Book Listing

On December 20, 2024, the U.S. Court of Appeals for the Federal Circuit issued a significant ruling in the Teva v. Amneal case following oral arguments before the Federal Circuit, which we discussed in our previous article. ...more

WilmerHale

USA: Unpacking the shift – Heightened antitrust scrutiny on Orange Book listings

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Forty years ago, Congress passed the Hatch-Waxman Act, which streamlined the generic drug approval process and revamped how patent infringement claims would be litigated against those prospective generic drug applicants. At...more

DLA Piper

Silvergate Pharmaceuticals v. Bionpharma: The Relevance of Offers of Confidential Access Under the Hatch-Waxman Statute and Awards...

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In Silvergate Pharmaceuticals, Inc. v. Bionpharma Inc., the US District Court for the District of Delaware decided an open question regarding pre-filing investigation and attorney fees under Title 35 of the US Code, Section...more

Robins Kaplan LLP

New ANDA Cases - Federal District Court Cases That Are Filed Pursuant to the Hatch-Waxman Act

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This chart summarizes the case name, presiding judge, drug, and patents-at-issue in all federal district court cases that are filed pursuant to the Hatch-Waxman Act. It also includes the same information for proceedings...more

Robins Kaplan LLP

Generic Launches - Abbreviated New Drug Applications and 505(b)(2) Applications

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This chart tracks the date, drug, reference-listed company, applicant, and indications of publicly available drug launches resulting from Abbreviated New Drug Applications and 505(b)(2) Applications....more

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