News & Analysis as of

Prior Art Hatch-Waxman Pharmaceutical Industry

Irwin IP LLP

“Consisting of” Consequences: Prosecution Disclaimers Outweigh Pretrial Stipulations 

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The Federal Circuit recently opined on whether a stipulation in litigation can overcome a disclaimer made during the prosecution history of a patent. The Hatch-Waxman Act allows generic drug companies to use clinical results...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

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

Polsinelli

New PTAB Guidance on Enabling Requirement Under § 102 of the AIA and Construction of Chemical Compound

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Synopsis: In a recently issued final written decision, the Patent Trial and Appeal Board (the “Board”) found all challenged claims of U.S. Patent No.11,572,334 (“the ’334 patent”) unpatentable.1 The Board’s decision centered...more

Womble Bond Dickinson

Unexpected Results in Hatch Waxman Litigation: A Review of Legal Decisions from 2023

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Patent owners generally look to secondary indicia to bolster their nonobvious defenses when prior art and/or knowledge of a person of ordinary skill in the art (“POSA”) seem to make the obviousness decision a close call. This...more

American Conference Institute (ACI)

[Event] 18th Annual Paragraph IV Disputes - April 19th - 20th, New York, NY

Hosted by ACI, 18th Annual Paragraph IV Disputes Conference returns to New York City for another exciting year with curated programming that not only addresses the hot topics, but also puts them within the context of pre-suit...more

Robins Kaplan LLP

Bausch Health Ireland Ltd. v. Padagis Israel Pharms. Ltd.,

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Case Name:  Bausch Health Ireland Ltd. v. Padagis Israel Pharms. Ltd., No. CV 20-5426 (SRC), 2022 WL 17352334 (D.N.J. Dec. 1, 2022) (Chesler, J.)  Drug Products and Patent(s)-in-Suit: Duobrii® (halobetasol...more

Robins Kaplan LLP

Takeda Pharm. Co. Ltd. v. Norwich Pharms., Inc.

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Case Name: Takeda Pharm. Co. Ltd. v. Norwich Pharms., Inc., No. 20-8966 (SRC), 2022 WL 17959811 (D.N.J. Dec. 27, 2022) (Chesler, J.) Drug Product and Patent(s)-in-Suit: Vyvanse® (1-lysine-d-amphetamine dimesylate); U.S....more

Akin Gump Strauss Hauer & Feld LLP

Discussion of Inventors’ Path in Expert’s Obviousness Opinion Warrants Partial Exclusion in Bench Trial

In the weeks preceding a recent Hatch-Waxman bench trial, a district court excluded portions of an expert’s opinion on obviousness that addressed internal documents and inventor testimony concerning the “inventors’ path” to...more

Robins Kaplan LLP

Genentech, Inc. v. Sandoz, Inc.

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Case Name: Genentech, Inc. v. Sandoz, Inc., Civ. No. 19-78-RGA (D. Del. Mar. 22, 2022) (Andrews, J.) Drug Product and Patent(s)-in-Suit: Esbriet® (pirfenidone); U.S. Patent Nos. 7,566,729 (“the ’729 patent”), 7,635,707...more

Robins Kaplan LLP

Adapt Pharma Operations Ltd. v. Teva Pharms. USA, Inc. Narcan® (Naloxone)

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Case Name: Adapt Pharma Operations Ltd. v. Teva Pharms. USA, Inc., Case No. 2020-2106, 25 F.4th 1354 (Fed. Cir. Feb. 10, 2022) (Circuit Judges Newman, Prost, and Stoll presiding; Opinion by Stoll, J.; Dissenting Opinion by...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,...

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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

Robins Kaplan LLP

Auxilium Pharms., Inc. v. FCB I LLC

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Case Name: Auxilium Pharms., Inc. v. FCB I LLC, Civ. No. 20-16456, 2021 WL 2802537 (D.N.J. July 6, 2021) (Vazquez, J.) - Drug Product and Patent(s)-in-Suit: Testim® (testosterone gel); U.S. Patents Nos. 7,320,968 (“the ’968...more

Knobbe Martens

Arguments to the Patent Office That Contradict Information Submitted to the FDA Support Inference of Deceptive Intent

Knobbe Martens on

BELCHER PHARMACEUTICALS v. HOSPIRA, INC. Before Reyna, Taranto, and Stoll. Appeal from the District of Delaware. Summary: A patentee committed inequitable conduct by advancing an argument during patent prosecution...more

Robins Kaplan LLP

Valeant Pharms Int’l, Inc. v. Mylan Pharms Inc.

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BECAUSE THE PRIOR ART TAUGHT OVERLAPPING PH RANGES AND STRUCTURALLY SIMILAR COMPOUNDS AS THOSE CLAIMED IN THE PATENT-IN-SUIT, THE FEDERAL CIRCUIT REVERSED SUMMARY JUDGMENT OF NON-OBVIOUSNESS. Case Name: Valeant Pharms...more

Robins Kaplan LLP

Onyx Therapeutics, Inc. v. Cipla Ltd.

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BECAUSE A POSA WOULD NOT HAVE SELECTED THE PRIOR-ART COMPOUND AS A “LEAD COMPOUND,” AND THERE WAS EVIDENCE THAT THE INVENTION MET AN UNMET NEED AND OVERCAME INDUSTRY SKEPTICISM, DEFENDANT FAILED TO PROVE THAT THE...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - January 2020

PATENT CASE OF THE WEEK - Amgen Inc. v. Amneal Pharmaceuticals LLC, et al., Appeal Nos. 2018-2414, et al. (Fed. Cir. Jan. 7, 2020) - In this appeal from Markman and summary judgment opinions by the district court in a...more

Polsinelli

Federal Circuit Addresses Obviousness of Polymorphs in Grunenthal GmbH v. Alkem Labs. Ltd., No. 2017-1153 (Fed. Cir. Mar. 28,...

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For the first time, on March 28, 2019, the Federal Circuit addressed obviousness of polymorph claims based on a known approach to polymorph screening, finding no reasonable expectation of success....more

Troutman Pepper Locke

Why Biotech and Pharma Patents Survive IPR

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When the America Invents Act of 2011 ushered in a number of new administrative procedures for challenging issued patents, the biotechnology and pharmaceutical industries at first seemed largely unconcerned. Originally...more

Robins Kaplan LLP

Tris Pharma Inc. v. Actavis Labs. Fl, Inc.

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Case Name: Tris Pharma Inc. v. Actavis Labs. Fl, Inc., Fed. Cir. Nos. 2017-2557, -2559, -2560, 2018 U.S. App. LEXIS 32774 (Fed. Cir. Nov. 20, 2018) (Circuit Judges Newman, O’Malley, and Chen presiding; Opinion by Chen, J.)...more

Morrison & Foerster LLP

What Are the Top Hatch-Waxman and BPCIA Developments for October 2018?

This month we highlight a new law requiring notification to the Federal Trade Commission and Department of Justice of biosimilar litigation settlements and perhaps the end of a long-running Mylan venue dispute in Delaware....more

Robins Kaplan LLP

Bayer Intellectual Prop. GmbH v. Aurobindo Pharma Ltd.

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Case Name: Bayer Intellectual Prop. GmbH v. Aurobindo Pharma Ltd., No. 15-902, 2018 U.S. Dist. LEXIS 116931 (D. Del. July 13, 2018) (Stengel, C.J.)....more

Robins Kaplan LLP

Galderma Labs., L.P. v. Amneal Pharmaceuticals LLC

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Case Name: Galderma Labs., L.P. v. Amneal Pharmaceuticals LLC, No. 16-207-LPS, 2018 U.S. Dist. LEXIS 151037 (D. Del. Aug. 27, 2018) (Stark, C.J.)....more

Robins Kaplan LLP

Endo Pharms. Sols., Inc. v. Custopharm Inc.

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Case Name: Endo Pharms. Sols., Inc. v. Custopharm Inc., 894 F.3d 1374, 2018 U.S. App. LEXIS 19265 (Fed. Cir. July 13, 2018) (Circuit Judges Moore, Linn, and Chen presiding; Opinion by Chen, J.) (Appeal from D. Del., Robinson,...more

Morrison & Foerster LLP

What Are the Top Hatch-Waxman and BPCIA Developments for July 2018?

This month, we highlight significant developments from July 2018, including the FDA’s Biosimilar Action Plan for “reducing gaming of FDA requirements or other attempts to unfairly delay competition” and the much anticipated...more

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