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Subject Matter Eligibility in the 21st Century: Echoes of pre-§ 103 Obviousness*

The evolution of subject matter eligibility after the Supreme Court's decisions in Prometheus v. Mayo, Alice v. CLS Bank, and Association for Molecular Pathology v. Myriad Genetics has resulted in a regime of predictable...more

Treprostinil Saga Continues

United Therapeutics Corp. (UTC) and Liquidia Technologies Inc. have been battling for close to a decade over their respective inhaled formulations of treprostinil (UTC's Tyvaso®, Liquidia's Yutrepia™) for treatment of...more

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

Regents of the University of California v. Broad Institute, Inc. (Fed. Cir. 2025) - Update

Only a few days after the one-year anniversary of hearing oral argument, the Federal Circuit handed down its decision in Regents of the University of California v. Broad Institute, Inc. on Monday. The opinion reviewed the...more

Regents of the University of California v. Broad Institute (Fed. Cir. 2025)

Only a few days after the one-year anniversary of hearing oral argument, the Federal Circuit handed down its decision in Regents of the University of California v. Broad Institute, Inc. In short -- and to be explicated more...more

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

Sage Products, LLC v. Stewart (Fed. Cir. 2025)

When a prevailing challenger withdraws from an appeal in post-grant proceedings, the Director can intervene under 35 U.S.C. § 143, which is what happened in an appeal in Sage Products, LLC v. Stewart after Challenger Becton...more

Recor Medical, Inc. v. Medtronic Ireland Mfg. (Fed. Cir. 2025)

The inter partes review provisions of the Leahy-Smith America Invents Act have been criticized for the propensity of the Patent Trial and Appeal Board (PTAB) to find invalid all or at least some of the challenged claims,...more

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

DNA Genotek Inc. v. Spectrum Solutions LLC (Fed. Cir. 2025)

Sometimes important contributions to innovation can come from the mundane rather than the extraordinary. One (perhaps apocryphal) example comes from the story of the early development of television by Philo Farnsworth (the...more

Regeneron Pharmaceuticals, Inc. v. Mylan Pharmaceuticals Inc. (Fed. Cir. 2025)

Completing a recent jurisprudential "hat trick,"* the Federal Circuit affirmed a District Court grant of a preliminary injunction against a biosimilar applicant for Regeneron's EYLEA biologic drug in Regeneron...more

Immunogen, Inc. v. Stewart (Fed. Cir. 2025)

After creating something of a frisson due to the apprehension that the Federal Circuit might be convinced to re-evaluate whether it was a necessary element for establishing obviousness for the skilled artisan to have had a...more

Regeneron Pharmaceuticals, Inc. v. Mylan Pharmaceuticals Inc. (Fed. Cir. 2025)

Note: This post addresses two Federal Circuit decisions issued on January 29, 2025.  Both appeals involved Plaintiff-Appellee Regeneron Pharmaceuticals, Inc., with the first appeal involving Defendant-Appellant Formycon AG...more

Aurobindo v. Merck Sharp and Dohme -- Oral Argument

The Federal Circuit heard oral argument in Auribundo's appeal of the district court's decision in favor of plaintiff Merck, in a case captioned In re Sugammadex (alternatively, Aurobindo v. Merck Sharp and Dohme). The issue...more

USPTO Challenges Reasonable Expectation of Success Prong of Obviousness Law Precedent in Immunogen v. Vidal

The U.S. Patent and Trademark Office has a history of attempting to challenge judicial decisions that the Office, usually for its own policy reasons, takes issue with.[1]  Recently, the Office decided to challenge the...more

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

Vascular Solutions LLC v. Medtronic, Inc. (Fed. Cir. 2024)

The metes and bounds of how courts should consider indefiniteness under 35 U.S.C. § 112(b) were addressed most recently by the Supreme Court in Nautilus, Inc. v. Biosig Instruments, Inc., 572 U.S. 898 (2014).  Regardless,...more

Wisconsin Alumni Research Foundation v. Apple Inc. (Fed. Cir. 2024)

In a joint appeal of two adverse decisions from the District Court, the Federal Circuit on procedural grounds rejected an appeal from the Wisconsin Alumni Research Foundation ("WARF") in Wisconsin Alumni Research Foundation...more

Natera, Inc. v. NeoGenomics Laboratories, Inc. (Fed. Cir. 2024)

In Natera Inc. v. NeoGenomics Laboratories, Inc. the Federal Circuit affirmed the District Court's grant of a preliminary injunction against NeoGenomics in patent infringement litigation involving Natera's U.S. Patent Nos....more

Salix Pharmaceuticals, Ltd. v. Norwich Pharmaceuticals Inc. (Fed. Cir. 2024)

The Federal Circuit handed down an opinion last week that invalidated several asserted claims and found infringement under 35 U.S.C. § 271(e)(2) of the claims, while refusing to modify its judgment on infringement after...more

Cardiovalve Ltd. v. Edwards Lifesciences Corp. (Fed. Cir. 2024)

Last week, the Federal Circuit handed down a pair of non-precedential decisions affirming the Patent Trial and Appeal Board (PTAB) in inter partes review (IPR) proceedings. This post concerns the decision in Cardiovalve Ltd....more

Medtronic, Inc. v. Teleflex Life Sciences Ltd. (Fed. Cir. 2024)

Last week the Federal Circuit handed down a pair of non-precedential decisions affirming the Patent Trial and Appeal Board (PTAB) in inter partes review (IPR) proceedings.  This post concerns the decision in Medtronic, Inc....more

Malvern Panalytical Inc. v. TA Instruments-Waters LLC (Fed. Cir. 2023)

One of the characteristics of patent infringement litigation in the aftermath of the Supreme Court's decision in Markman v. Westview Instruments, Inc. (holding that claim construction was a matter of law to be reviewed de...more

Pacific Biosciences of California, Inc. v. Personal Genomics Taiwan, Inc. (Fed. Cir. 2024)

The importance of claim construction, and how construing the same term facing a challenge based on different prior art in separate inter partes review proceedings can result in contrary findings on invalidity, was illustrated...more

PureCircle USA Inc. v. SweeGen, Inc. (Fed. Cir. 2024)

Not surprisingly, the Federal Circuit visited upon Plaintiff/Appellant PureCircle two of the Four Horsemen of the Biotech Patent Apocalypse* in a decision affirming the District Court's invalidation of the claims asserted...more

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