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Goodwin

UK Court of Appeal Upholds Moderna mRNA Patent Against Pfizer/BioNTech

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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

Venable LLP

Spotlight On: Rituxan® (rituximab) / Truxima® (rituximab-abbs) / Ruxience® (rituximab-pvvr) / Riabni™ (rituximab-arrx) - August...

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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

Venable LLP

Spotlight On: Herceptin® (trastuzumab) / Ogivri® (trastuzumab-dkst) / Herzuma® (trastuzumab-pkrb) / Ontruzant® (trastuzumab-dttb)...

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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

Goodwin

Final Judgment of Non-Infringement Entered in Alnylam v. Pfizer Vaccine Patent Dispute

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​​​​​​​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

Venable LLP

Federal Circuit Affirms PTAB’s Unpatentability Findings in Gene Therapy Hemgenix® IPRs

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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

Rothwell, Figg, Ernst & Manbeck, P.C.

[Webinar] mRNA Patent Wars Update: Litigations Expand and Key Rulings Expected in 2025 - May 14th, 2:00 pm ET

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

Rothwell, Figg, Ernst & Manbeck, P.C.

mRNA/LNP Patent Litigation Update (Q1 2025)

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

Goodwin

GSK and Pfizer Stipulate to Dismissal of RSV Vaccines Lawsuit

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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

Knobbe Martens

Routine Optimization of Result-Effective Variable Can Bridge Gaps in Prior Art

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PFIZER INC. v. SANOFI PASTEUR INC. - Before Lourie, Bryson, and Stark.  Appeal from the Patent Trial and Appeal Board....more

Goodwin

GSK Sues Pfizer for Patent Infringement over RSV Vaccine

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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

Rothwell, Figg, Ernst & Manbeck, P.C.

[Webinar] The mRNA/Lipid Nanoparticle Competitive and Litigation Landscape - September 27th, 2:00 pm ET

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

Goodwin

Alnylam Files New COVID-19 Vaccine Infringement Lawsuits Against Pfizer and Moderna

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​​​​​​​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

Goodwin

Update on Arbutus mRNA Vaccine Patent Litigations

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​​​​​​​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

Goodwin

Pfizer Files Lawsuit in Australia to Halt Sales of BRENZYS (etanercept)

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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

Goodwin

Year in Review: Top Legal Developments of 2021 Impacting Biosimilars

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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

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

MarkIt to Market® - December 2021

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

Smart & Biggar

Federal Court of Appeal upholds decision finding Seedlings' LifeCard patent invalid and not infringed by Pfizer’s EpiPen

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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

Proskauer - The Patent Playbook

A Guiding Light for the Research Safe Harbor and “Research Tools”?

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

Smart & Biggar

Federal Court upholds validity of one pneumococcal vaccine patent, but holds two other patents invalid

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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

Goodwin

Motion to Dismiss Denied in Amgen v. Hospira BPCIA

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At the end of last month, Judge Connolly denied defendants Hospira and Pfizer’s motion to dismiss following a telephone conference with the parties.  We previously reported back in February 2020 that Amgen sued Pfizer and its...more

Smart & Biggar

Supreme Court denies leave of interlocutory decision in pregabalin section 8 case

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On December 10, 2020, the Supreme Court of Canada dismissed Pfizer’s application for leave to appeal (Docket No. 39150) a decision upholding an interlocutory decision on a question relevant to the assessment of section 8...more

Goodwin

Delaware Court Denies Motion to Consolidate Filgrastim Cases Against Pfizer

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The U.S. District Court for the District of Delaware has denied Amgen’s motion to consolidate a recently filed action against Pfizer and its affiliate Hospira relating to Hospira’s filgrastim biosimilar with an ongoing...more

Goodwin

Amgen Sues Pfizer and Hospira for Patent Infringement related to Hospira’s Filgrastim Biosimilar

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Last week, Amgen filed a new complaint against Pfizer and Hospira under the BPCIA for infringement related to Hospira’s filgrastim biosimilar. The action is related to newly granted U.S. Patent No. 10,577,392, which is...more

Goodwin

Pfizer Moves to Dismiss Amgen’s Suit Over Proposed Neulasta Biosimilar

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As we previously reported, on February 11, 2020, Amgen sued Pfizer and its affiliate Hospira, alleging that their proposed biosimilar of Amgen’s NEULASTA (pegfilgrastim) would infringe U.S. Patent No. 8,273,707 (“the ’707...more

McDonnell Boehnen Hulbert & Berghoff LLP

Life Sciences Court Report - March 2020

About Life Sciences Court Report:  We will periodically report on recently filed biotech and pharma litigation. Allergan USA, Inc. v. Prollenium US Inc. 1-20-cv-00104; filed January 23, 2020 in the District Court of Delaware...more

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