News & Analysis as of

Pharmaceutical Patents Patent Litigation Orange Book

Robins Kaplan LLP

Norwich Pharms., Inc. v. Kennedy Jr.

Robins Kaplan LLP on

Nature of the Case and Issue(s) Presented: Salix holds NDAs for 200mg and 550mg Xifaxan. The 550mg strength product was approved to treat irritable bowel syndrome with diarrhea (“IBS-D indication”) and hepatic encephalopathy...more

Jones Day

Acting Director Denies IPR Institution Based on “Settled Expectations”

Jones Day on

Under a new U.S. Patent and Trademark Office (“USPTO”) policy issued in March 2025, pre-institution inter partes review (“IPR”) proceedings are now bifurcated, consisting of a first phase in which the director considers...more

Haug Partners LLP

FTC Issues a Third Round of Warning Letters Over Improper Orange Book Listings

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On May 21, 2025, the Federal Trade Commission (FTC) renewed its efforts to challenge pharmaceutical manufacturers that have allegedly listed patents improperly in the Food and Drug Administration’s (FDA) publication of...more

Jones Day

USPTO Acting Director Denies IPR Institution Based on "Settled Expectations"

Jones Day on

Under a new U.S. Patent and Trademark Office ("USPTO") policy issued in March 2025, pre-institution inter partes review ("IPR") proceedings are now bifurcated, consisting of a first phase in which the director considers...more

Venable LLP

Spotlight On: Biosimilar Litigations - June 2025

Venable LLP on

Biosimilar Litigations include litigations relating to biosimilar/follow-on products of CDER-listed reference products. Litigations between biosimilar applicants/manufacturers and reference product sponsors as well as...more

Fish & Richardson

Federal Circuit Reverses Injunction That Barred Clinical Trials in Jazz v. Avadel

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The Federal Circuit recently considered the scope of a permanent injunction that prohibited a drug manufacturer from conducting certain clinical and regulatory activities in Jazz Pharmaceuticals, Inc. v. Avadel CNS...more

McDermott Will & Schulte

FTC Revives Orange Book Listing Challenges

On May 21, 2025, the Federal Trade Commission (FTC) issued its third round of warning letters – and its first under the Trump administration – against pharmaceutical manufacturers for allegedly improper listing of patents in...more

Axinn, Veltrop & Harkrider LLP

FTC Peeling Back the Layers of the Orange Book

The Federal Trade Commission (FTC) is continuing to pursue pharmaceutical manufacturers for allegedly improperly listing patents in the “Orange Book,” delaying the entry of generic drug competitors. On May 21, the FTC...more

Hogan Lovells

Republican FTC renews challenges to Orange Book patent listings

Hogan Lovells on

On May 21, 2025 the Federal Trade Commission (FTC) issued renewed warning letters to five companies regarding over 200 allegedly improperly-listed patents in the Food and Drug Administration (FDA)’s Orange Book. Announcing...more

McDonnell Boehnen Hulbert & Berghoff LLP

Federal Trade Commission Continues Efforts to Delist Drug Device Administration Patents in Orange Book

In the last years of the Biden Administration, the Federal Trade Commission issued a policy statement and sent letters to ten companies having Orange Book-listed patents claiming devices for administering drugs challenging...more

Polsinelli

Orange Book Listings: Republican Led FTC Picks Up Where Democrat Led FTC Left Off

Polsinelli on

Key Takeaways - The Federal Trade Commission (FTC), now under Republican leadership, has continued its scrutiny of Orange Book listings for device patents, signaling bipartisan concern over potential anti-competitive...more

McDonnell Boehnen Hulbert & Berghoff LLP

Metacel Pharmaceuticals LLC v. Rubicon Research Private Ltd. (Fed. Cir. 2025)

The Federal Circuit affirmed a District Court decision that the label for a generic drug obtained from an ANDA would not induce infringement by reciting optional drug storage conditions the read on the NDA holder's Orange...more

Foley & Lardner LLP

Federal Circuit Decision Could Encourage More Reissue Patents

Foley & Lardner LLP on

The Patent Term Extension (PTE) provisions of 35 U.S.C. § 156 compensate pharmaceutical patent owners for time they are not able to enjoy commercial market exclusivity because their products are not yet approved by the U.S....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

ArentFox Schiff

Federal Circuit Affirms ImmunoGen Patent Obviousness

ArentFox Schiff on

In a precedential opinion issued on March 6, the Federal Circuit affirmed the US District Court for the Eastern District of Virginia that the claims in ImmunoGen’s US patent application 14/509,809 (“the ’809 application,”...more

Fish & Richardson

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

Fish & Richardson on

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

Robins Kaplan LLP on

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

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

Federal Circuit Stays Teva v. Amneal Ruling

In our previous article, we reported that the Federal Circuit affirmed the district court’s decision requiring Teva to delist certain patents related to its Teva’s ProAir® HFA metered-dose inhaler from the FDA’s Orange...more

WilmerHale

Federal Circuit Patent Watch: Orange Book Patents Can Be Delisted If They Do Not Claim Active Ingredient

WilmerHale on

Precedential and Key Federal Circuit Opinions - TEVA BRANDED PHARMACEUTICAL PRODUCTS R&D, INC. v. AMNEAL PHARMACEUTICALS OF NEW YORK, LLC [OPINION] (2024-1936, 12/20/2024) (Prost, Taranto, Hughes) - Prost, J. The...more

McDermott Will & Schulte

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

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

Fish & Richardson

Hatch-Waxman 201

Fish & Richardson on

For branded drugmakers, the development of a pharmaceutical product approved by the Food and Drug Administration (FDA) all but assures generic competition. As discussed during the first installment of our Hatch-Waxman series,...more

Wolf, Greenfield & Sacks, P.C.

Wolf Greenfield Attorneys Review 2024 and Look Ahead to 2025

2025 promises to be another busy year for intellectual property law. In this episode of IP Talk with Wolf Greenfield, you’ll hear Wolf Greenfield attorneys from a variety of practice areas reviewing some of the top issues of...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

WilmerHale

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

WilmerHale on

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

McDonnell Boehnen Hulbert & Berghoff LLP

Teva v. Amneal -- Amneal's Responsive Brief

The Federal Circuit has been petitioned by plaintiff Teva Branded Pharmaceutical Products R&D, Inc. to reverse a decision in favor of Defendant Amneal Pharmaceuticals, wherein the District Court entered an injunction ordering...more

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