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Bayer Sues Pfizer, BioNTech, Moderna Over mRNA Patent Claims

1/7/2026

Summary

Story summary

Bayer AG filed lawsuits in Delaware and New Jersey federal courts against Pfizer, Inc., BioNTech SE, and Moderna, Inc., alleging misused its Monsanto-developed mRNA technology from the 1980s.
The lawsuits allege the companies copied technology to stabilize mRNA for crops to improve vaccines.
Bayer seeks unspecified monetary damages and does not seek to halt vaccine production.
The action adds to existing vaccine patent disputes, including Moderna, Inc. v. Pfizer, Inc.

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Story summary

Bayer AG filed lawsuits in Delaware and New Jersey federal courts against Pfizer, Inc., BioNTech SE, and Moderna, Inc., alleging misused its Monsanto-developed mRNA technology from the 1980s.
The lawsuits allege the companies copied technology to stabilize mRNA for crops to improve vaccines.
Bayer seeks unspecified monetary damages and does not seek to halt vaccine production.
The action adds to existing vaccine patent disputes, including Moderna, Inc. v. Pfizer, Inc.