Arbutus Files More Patent Infringement Suits Against Pfizer, BioNTech

By Katherine Hamilton


Arbutus Biopharma and its licensee Genevant filed three patent infringement lawsuits against Pfizer and BioNTech for its lipid nanoparticle technology.

The clinical-stage biopharmaceutical company is seeking monetary relief and injunctions against Pfizer and BioNTech's Covid-19 vaccines using lipid nanoparticle technology, Arbutus said Thursday.

Arbutus filed the lawsuits in Canada and the United Patent Court, which covers several European countries.

The actions expand on Arbutus' continuing proceedings in a New Jersey district court, where the company is seeking compensation for alleged infringement of five U.S. patents in Pfizer and BioNTech's Covid-19 vaccines.

Separately, Arbutus said it received $178 million from Moderna earlier this month, representing a settlement agreement to resolve patent infringement litigation related to Moderna's Covid-19 vaccines.

Arbutus said it expects to return capital to shareholders starting in the third quarter through repurchases of up to $230 million of its common shares.


Write to Katherine Hamilton at katherine.hamilton@wsj.com


(END) Dow Jones Newswires

July 16, 2026 08:25 ET (12:25 GMT)

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