Bayer Sues Vaccine Makers Over Alleged Patent Infringement
Bayer has filed lawsuits against Pfizer, BioNTech, Moderna, and Johnson & Johnson, accusing them of using mRNA technology developed by Monsanto in the 1980s. The lawsuits seek monetary damages but do not aim to block vaccine production.
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Bayer AG has initiated a series of patent infringement lawsuits against four major pharmaceutical companies, alleging unauthorized use of mRNA stabilization technology originally developed by Monsanto in the 1980s. The lawsuits, filed on January 6, 2026, target Pfizer Inc. , BioNTech SE , Moderna Inc. , and Johnson & Johnson , and seek unspecified monetary damages without attempting to halt vaccine production.
The legal action was taken in two separate federal courts in the United States 
US, with lawsuits against Pfizer, BioNTech, and Moderna filed in Delaware, and a separate suit against Johnson & Johnson filed in New Jersey. Bayer's claims focus on the alleged misuse of mRNA technology, which was initially developed to enhance crop resilience but has since been adapted for use in COVID-19 vaccines.
US, with lawsuits against Pfizer, BioNTech, and Moderna filed in Delaware, and a separate suit against Johnson & Johnson filed in New Jersey. Bayer's claims focus on the alleged misuse of mRNA technology, which was initially developed to enhance crop resilience but has since been adapted for use in COVID-19 vaccines.
