Private Equity's Inversion Excursion: Pepper Hamilton Talks Tax With the Deal
On August 1, 2025, a UK Court of Appeal upheld the validity of Moderna’s European Patent No. 3,590,949 (“EP’949”) in a dispute with Pfizer and BioNTech. The decision affirmed a July 2024 UK High Court ruling finding that...more
Rituximab 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
Trastuzumab 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
On July 30, 2025, the U.S. District Court for the District of Delaware entered a Final Judgment in the dispute between Alnylam Pharmaceuticals, Inc. (“Alnylam”) and Pfizer, Inc. (“Pfizer”)—concluding that Pfizer’s...more
On May 22, 2025, the CAFC affirmed the PTAB’s (Board) Final Written Decisions in Pfizer’s IPR2021-00925 and IPR2021-00926 finding all challenged claims of uniQure’s U.S. Patent No. 9,982,248 (“the ’248 patent”) unpatentable...more
Partner Dan Shores will present a webinar titled "mRNA Patent Wars Update: Litigations Expand and Key Rulings Expected in 2025" for Medmarc, the leading expert in the products liability risks facing medical technology and...more
As we previously discussed, beginning in 2022, a series of patent infringement lawsuits were filed against Moderna and collaborators Pfizer+BioNTech seeking damages based on their respective sales of the Spikevax® and...more
On April 3, 2025, GlaxoSmithKline (GSK) and Pfizer filed a stipulation to dismiss with prejudice GSK’s litigation in the United States District Court for the District of Delaware....more
West Virginia Attorney General (AG) Patrick Morrisey announced a total $17 million settlement agreement with pharmaceutical companies, Pfizer and Ranbaxy after more than a decade of litigation regarding the companies’ alleged...more
Last week, the Federal Circuit handed down its opinion in Pfizer Inc. v. Sanofi Pasteur Inc., affirming the Patent Trial and Appeal Board's (PTAB) determination that all claims of U.S. Patent No. 9,492,559 challenged in...more
European Commission Orders Unprecedented Unwinding Of Illumina’s Acquisition of GRAIL. For the first time, the European Commission has ordered reversal of a consummated transaction, Illumina Inc.’s 2021 acquisition of GRAIL...more
GlaxoSmithKline Biologicals SA and GlaxoSmithKline LLC (collectively, “GSK”) recently filed suit in the District of Delaware against Pfizer, Inc. alleging that Pfizer’s respiratory syncytial virus (“RSV”) vaccine ABRYSVO...more
Partner Dan Shores will present a webinar titled "The mRNA/Lipid Nanoparticle Competitive and Litigation Landscape" for Medmarc, the leading expert in the products liability risks facing medical technology and life sciences...more
Last Friday, Alnylam Pharmaceuticals, Inc. (“Alnylam”) filed new complaints for patent infringement in the District of Delaware against Pfizer and Moderna. This is the third time Alnylam has sued Pfizer and Moderna in...more
Last week, Arbutus Biopharma Corp. and Genevant Sciences GmbH (collectively, Arbutus) filed a complaint for patent infringement in the District of New Jersey against Pfizer, Inc. and BioNTech SE....more
On August 16, 2022, Merck (NYSE: MRK) and Orna Therapeutics each announced that they entered into a collaboration agreement relating to the discovery, development and commercialization of therapeutics and vaccines in the...more
Last week Pfizer filed a lawsuit in a federal court of Australia against respondents Samsung Bioepis, Merck, Sharp & Dohme, Organon, and Arrow, to halt sales of their biosimilar BRENZYS (etanercept). Pfizer alleges that the...more
As we close out another calendar year, we look back at the top legal developments of 2021 that could influence the market for biologics and biosimilars. There were many interesting decisions and other developments in district...more
An Early Christmas for Arena Pharmaceuticals - Hot on the heels of acquiring immuno-oncology company Trillium Therapeutics for about $2.22 billion last month, Pfizer was quickly seeking additional promising drug...more
The December 2021 issue of Sterne Kessler's MarkIt to Market® newsletter discusses new enforcement tools courtesy of the Trademark Modernization Act; Pfizer's acquisition of Arena Pharmaceuticals; the latest developments in...more
In their respective third quarter financial results, Amgen and Pfizer both announced plans to seek interchangeable status for select biosimilars. Amgen announced that patients are currently being enrolled in Phase 3 studies...more
On October 6, 2021, Voyager Therapeutics and Pfizer entered into a license option agreement, which allows Pfizer to exercise options to license Voyager’s adeno-associated virus (AAV) capsids for gene therapies. Voyager...more
On July 28, 2021, the Federal Court of Appeal (FCA) dismissed Seedling’s appeal from the Federal Court decision of Justice Grammond (2020 FC 1, previously reported), which concluded that certain claims of Seedlings' LifeCard...more
Allele v. Pfizer – The Basics. On April 23, 2021 Pfizer, Inc., BioNTechSE, and BioNTech US, Inc. (“Pfizer and BioNTech”) filed a joint reply supporting of their previously filed motion to dismiss a patent infringement...more
Update: Wyeth’s appeal was discontinued. On April 30, 2021, the Federal Court issued its decision relating to the validity of three patents relating to Pfizer’s PREVNAR 13, a 13-valent pneumococcal polysaccharide protein...more