News & Analysis as of

Patent Invalidity Generic Drugs

Robins Kaplan LLP

Mallinckrodt Pharms. Ireland Ltd. v. Airgas Therapeutics LLC

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INOMax® (nitric oxide) - Case Name: Mallinckrodt Pharms. Ireland Ltd. v. Airgas Therapeutics LLC, Civ. No. 22-1648-RGA, 2025 WL 472557 (D. Del. Feb. 12, 2025) (Andrews, J.)  Drug Product and Patent(s)-in-Suit: INOMax® (nitric...more

Robins Kaplan LLP

In re Entresto

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Entresto® (valsartan/sacubitril) - Case Name: In re Entresto, 125 F.4th 1090 (Fed. Cir. Jan. 10, 2025) (Circuit Judges Lourie, Prost, and Reyna presiding; Opinion by Lourie, C.J.) (Appeal from D. Del., Andrews, J.)  Drug...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

Venable LLP

Spotlight On: Lantus® / Lantus® SoloSTAR® (insulin glargine recombinant) / Basaglar® (insulin glargine) / Semglee® (insulin...

Venable LLP on

Insulin Glargine 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

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

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

Lathrop GPM

Federal Circuit Upholds Validity of Entresto Patent In Precedential Decision Concerning Written Description and Enablement

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In a Jan. 10 precedential ruling by the United States Court of Appeals for the Federal Circuit, the validity of the U.S. patent covering Novartis’s blockbuster drug Entresto was upheld, reversing an earlier decision by the...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

Smart & Biggar

2022 Highlights in Canadian Life Sciences IP and Regulatory Law

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Below are highlights from the Rx IP’s team’s 2022 updates (see also our Top 10 Rx IP Update Reads of 2022): Contents: 1. Patent decisions on the merits 2. PMNOC Regulations: Fifth-year anniversary of major amendments,...more

American Conference Institute (ACI)

[Event] Paragraph IV Disputes Master Symposium - September 21st - 22nd, Chicago, IL

ACI’s 8th Annual Paragraph IV Disputes Master Symposium returns in person to Chicago on September 21-22! Join leading pharmaceutical patent litigators for brand name and generic drug companies to receive up-to-the-minute...more

Knobbe Martens

When an Unmet Need May Not Be Enough

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ADAPT PHARMA OPERATIONS LTD. V. TEVA PHARMS. USA, INC. Before Newman, Prost, and Stoll. Appeal from the United States District Court for the District of New Jersey. Summary: Recent attempts by competitors to achieve...more

McDonnell Boehnen Hulbert & Berghoff LLP

Amarin Pharma, Inc. v. Hikma Pharmaceuticals USA Inc. (Fed. Cir. 2020)

On September 3rd, the Federal Circuit affirmed under Rule 36 the decision by the District Court of Nevada (Du, J.) in March that the claims asserted by Amarin Pharma against West-Ward Pharmaceuticals International Ltd., Hikma...more

American Conference Institute (ACI)

[Virtual Event] Paragraph IV Disputes - October 6-7, 8:00 am-6:00 pm EDT

For the past 13 years, leading pharmaceutical patent litigators for brand name and generic drug companies gather at the Paragraph IV Disputes conference to discuss, debate, and analyze the latest trends, judicial rulings and...more

Smart & Biggar

Federal Court dismisses motion for a fifth generic to be added to rivaroxaban trial of common issues under PMNOC Regulations

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The Federal Court had previously allowed a concurrent trial on common invalidity issues in actions under the Patented Medicines (Notice of Compliance) Regulations (PMNOC Regulations) against four generic manufacturers:...more

Smart & Biggar

Federal Court rejects Apotex’s invalidity allegations on claims for use of abiraterone acetate in combination with prednisone

Smart & Biggar on

On October 29, 2019, the Federal Court issued its final decision under the pre-amended Patented Medicines (Notice of Compliance) Regulations: Janssen Inc v Apotex Inc, 2019 FC 1355. Justice Phelan granted Janssen’s...more

McDermott Will & Emery

Definiteness, Drug Labels and Diclofenac, Oh My

McDermott Will & Emery on

The US Court of Appeals for the Federal Circuit affirmed a district court’s invalidity and infringement judgments for patents directed to a topical nonsteroidal anti-inflammatory drug, finding that a patent claim reciting a...more

McDermott Will & Emery

Just Because It’s Written Doesn’t Mean It’s Descriptive

Addressing the validity of patents involved in a Hatch-Waxman litigation, the US Court of Appeals for the Federal Circuit held that claims were invalid for lack of an adequate written description because the specification...more

Bradley Arant Boult Cummings LLP

Federal Circuit Refuses to Resuscitate Prostate Cancer Drug Patent - Intellectual Property News

In a precedential decision delivered this week, the Federal Circuit shot down arguments from Appellants BTG International Limited; Janssen Biotech, Inc.; Janssen Oncology, Inc.; and Janssen Research & Development, LLC (BTG),...more

Smart & Biggar

Rx IP Update - April 2019

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PMPRB amendments expected to come into force no earlier than Spring 2020 - On April 1, 2019, Health Canada released Forward Regulatory Plan 2019-2021: Regulations Amending the Patented Medicines Regulations. This brief...more

Knobbe Martens

Grunenthal GMBH v. Alkem Laboratories Limited

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Before Judges Reyna, Taranto, and Chen. Appeal from the U.S. District Court for the District of New Jersey. Summary: There may be no reasonable expectation of success in producing a specific polymorph of a compound when...more

Smart & Biggar

Federal Court finds invalidity allegations relating to patent for metformin formulations not justified

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On March 8, 2019, Justice Fothergill granted Valeant Canada’s application for an order prohibiting the Minister of Health from issuing a notice of compliance to Generic Partners for its generic version of Valeant’s GLUMETZA,...more

Knobbe Martens

Federal Circuit Review - February 2019

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PTAB May Invalidate Claims on Reconsideration Based on Grounds Raised in the Institution Decision that Were Not Originally Instituted - In AC Technologies S.A., V. Amazon.Com, Inc., Blizzard Entertainment, Inc., Appeal No....more

Smart & Biggar

Apotex not permitted to plead promise-based invalidity grounds in Ontario section 8 lansoprazole action

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This motion arose in the context of a section 8 action in which Apotex claims damages for delay in the issuance of its notice of compliance for its generic lansoprazole product (Takeda's PREVACID), due to prohibition...more

Knobbe Martens

Orexo AB, Orexo US Inc., v. Actavis Elizabeth LLC

Knobbe Martens on

Federal Circuit Summary - Before Newman, Hughes, and Stoll. Appeal from the United States District Court for the District of Delaware Summary: Objective indicia of nonobviousness cannot be dismissed merely because all...more

Knobbe Martens

Federal Circuit Review - May 2018

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Priority Claims Cannot Be Incorporated by Reference - In Vanda Pharmaceuticals Inc. v. West-Ward Pharmaceuticals International Limited, Appeal Nos. 2016-2707 and 2016-2708, the Federal Circuit held that when a patent for a...more

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