News & Analysis as of

Hatch-Waxman Prior Art

Mintz - Intellectual Property Viewpoints

Federal Circuit Affirms Obviousness of Rifaximin Polymorph Patents and Denial of Motion to Modify Judgment After Post-Trial...

In a precedential opinion issued on April 11, 2024 in Salix Pharmaceuticals, Ltd. v. Norwich Pharmaceuticals Inc., Nos. 22-2153, 23-1952, the U.S. Court of Appeals for the Federal Circuit affirmed the U.S. District Court for...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

Robins Kaplan LLP

Chiesi Usa, Inc. V. Aurobindo Pharma Usa, Inc. - Cleviprex® (Clevidipine Injectable Emulsions)

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Case Name: Chiesi USA, Inc. v. Aurobindo Pharma USA, Inc., Civ. No. 19-18756, 2022 WL 3703207 (D.N.J. Aug. 16, 2022) (Quraishi, J.)  Drug Product and Patent(s)-in-Suit: Cleviprex® (clevidipine injectable emulsions); U.S....more

Robins Kaplan LLP

Vifor Fresenius Medical Care Renal Pharma Ltd. v. Teva Pharms. USA, Inc.

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Case Name: Vifor Fresenius Medical Care Renal Pharma Ltd. v. Teva Pharms. USA, Inc., Civ. No. 18-390 (MN), 2022 WL 3562555 (D. Del. Aug. 18, 2022) (Noreika, J.) Drug Product and Patent(s)-in-Suit: Velphoro® (sucroferric...more

Dechert LLP

Finding MDL Ground in Venue for Hatch-Waxman Cases

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When there are multiple ANDA filers for the same drug, it may not be possible for a branded pharmaceutical company to bring Hatch-Waxman Act patent infringement suits against all of them in the same court consistent with the...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

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

2021 PTAB Year in Review: Analysis & Trends

[co-author: Jamie Dohopolski] Love it or hate it, ignore the USPTO Patent Trial and Appeal Board (PTAB) at your peril. The introduction of the PTAB as part of the America Invents Act over ten years ago has forever changed...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., Civ. No. 2:20-cv-05426-SRC-CLW (consol.), 2021 WL 4593271 (D.N.J. Oct. 6, 2021) (Waldor, J.) - Drug Product and Patent(s)-in-Suit: Bryhali® (halobetasol...more

Robins Kaplan LLP

Janssen Pharms., Inc. v. Teva Pharms. USA, Inc.

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Case Name: Janssen Pharms., Inc. v. Teva Pharms. USA, Inc., No. 18-cv-734, 2021 WL 5323737 (D.N.J. Nov. 16, 2021) (Cecchi, J.)  Drug Product and Patent(s)-in-Suit: Invega Sustenna® (paliperidone palmitate); U.S. Patent No....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

Federal Circuit Review - September 2021

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Arguments to the Patent Office That Contradict Information Submitted to the FDA Support an Inference of Deceptive Intent In Belcher Pharmaceuticals v. Hospira, Inc., Appeal No. 20-1799, the Federal Circuit held that a...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

Akin Gump Strauss Hauer & Feld LLP

Federal Circuit Reverses District Court Anticipation Decision Combining Two Prior Art References

The Federal Circuit reversed a decision from the District Court for the District of Delaware invalidating three patents on anticipation grounds, finding the district court improperly relied on disclosures from multiple...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

Mintz - Intellectual Property Viewpoints

Federal Circuit Reverses PTAB Finding Tarceva® Method of Treatment Claims Invalid for Lack of Reasonable Expectation of Success...

In a precedential opinion on October 4, 2019, the United States Court of Appeals for the Federal Circuit, in OSI Pharmaceuticals v. Apotex, No. 2018-1925, reversed the Board’s Final Written Decision in an inter partes review...more

Jones Day

Lead Compound Analysis Not Always Applicable

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The Situation: In a Hatch-Waxman litigation, a district court determined that the claims covering a method of using the drug everolimus to treat kidney cancers were not obvious. The court found a motivation to "pursue"...more

Jones Day

Confidential FDA Communications as Prior Art in Hatch-Waxman Litigation

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The Situation: In a Hatch-Waxman litigation, the claims recite oxymorphone with less than 0.001% of an impurity called 14-hydroxymorphinone. The prior art includes confidential communications from the FDA to oxymorphone...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

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