Towards Healthcare Research & Consulting

Bayer Sues Pfizer, BioNTech, Moderna, Johnson & Johnson in mRNA Patent Monsanto

Published:09 June 2026  |  Experts:Aditi Shivarkar, Aman Singh  | 
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Firstly, Bayer, as the parent company of Monsanto, submitted a legal file against COVID-19 vaccine makers Pfizer, BioNTech, & Moderna for purportedly misusing its messenger RNA (mRNA) technology in the production of their vaccines.

Bayer’s allegations state that these firms are employing the mRNA technology originally developed by Monsanto scientists in the 1980s. They are especially leveraging codon optimisation approaches to combat codon-related issues in cells, thereby stabilising mRNA & enhance protein expression.

These Federal legal actions were filed in the U.S. District Court for the District of Delaware against Pfizer, BioNTech, and Moderna, along with the District of New Jersey against Johnson & Johnson. Moreover, Bayer is looking for financial compensation instead of a legal order to stop vaccine manufacturing.

Background of the Patent Dispute

The legal battle initiated by Bayer centers on patents related to codon optimization, a biotechnology technique that modifies genetic sequences to improve protein production within cells. Bayer alleges that the mRNA vaccine manufacturers Pfizer, BioNTech, Moderna, and Johnson & Johnson incorporated technologies protected by patents originally developed by Monsanto scientists during the 1980s. According to the company, these innovations helped address codon-related inefficiencies, enabling more stable messenger

RNA molecules and enhanced protein expression.

Codon optimization has become a crucial tool in modern biotechnology because different organisms often favor specific codons despite encoding the same amino acids. By redesigning genetic sequences to match cellular preferences, scientists can significantly improve the efficiency of protein synthesis. Bayer argues that these foundational innovations contributed to the technological framework supporting today's mRNA-based vaccines and therapies.

The company has filed lawsuits in the U.S. District Court for the District of Delaware against Pfizer, BioNTech, and Moderna, while a separate action has been filed in the District of New Jersey against Johnson & Johnson. Rather than seeking injunctions that would halt vaccine production, Bayer is pursuing monetary damages and ongoing royalty payments.

Timeline of Key Events

Year Event
1980s Monsanto researchers develop genetic engineering and codon optimization technologies that later become the subject of patent protection
1990s–2010s Advances in molecular biology expand the use of codon optimization across biotechnology, pharmaceutical research, and therapeutic development.
2020 Pfizer-BioNTech and Moderna launch mRNA-based COVID-19 vaccines following emergency authorizations worldwide.
2020–2025 mRNA technology gains widespread commercial and scientific recognition, leading to increased scrutiny of underlying intellectual property rights.
Early 2026 Bayer files patent infringement lawsuits against Pfizer, BioNTech, Moderna, and Johnson & Johnson in U.S. federal courts.
March 2026 Moderna and Pfizer move to dismiss the lawsuits, arguing that Bayer's patents are unrelated to human therapeutic applications and mRNA vaccine development.
Ongoing Litigation continues as courts evaluate patent validity, scope, and potential infringement claims.

Briefing on the Importance of mRNA Technology in Modern Medicine

  • By using this technology, mRNA vaccines & therapies can be developed & created expediently on the recognition of a pathogen’s genetic code. This further supports excluding the requirement to grow massive quantities of the live virus in a lab.
  • mRNA technology is a highly versatile platform, as it depends on molecular code instead of the biological features of a specific virus. Whereas an mRNA template can be easily replaced to target novel diseases or viral versions.
  • A robust technology followed by delivering genetic instructions to your own ribosomes for the safe development of protein also plays a pivotal role.

Major Catalysts Behind the Surging Patent Battles in the Biotech Industry are:

Ongoing breakthroughs in CRISPR-Cas9 & mRNA vaccines are expanding their applications in numerous issues, while the financial stakes are enormously high, triggering fierce ownership debates over foundational delivery systems & manufacturing approaches. Furthermore, key pharma leaders are suffering through major revenue shortfalls as in-demand advanced biologics are losing patent exclusivity. For the continuous dominant market position, developers are utilizing evergreening & patent clusters, plans of filing several overlapping secondary patents on minor alterations, delivery methods, or dosing schedules.

Enforcement of intellectual property (IP) among emerging or smaller biotech startups & research institutions appealing to venture capital & proving long-term survival. Therefore, players are forced to defend their assets to pacify investors.

Notable Impacts of These Battles Across the Pharmaceutical Firms & Innovations 
These highly time-consuming & expensive legal battles impel giant pharmaceutical leaders to redirect significant capital toward patent lawsuits & portfolio defense. Majorly for Indian generic manufacturers, winning patent litigation facilitates the acquisition of early accessibility to highly substantial markets.

Developing patent battles are enabling originators to repulse generic manufacturers & delay the patent cliff, which is the sharp revenue downfall that develops on the expiration of exclusive rights.

The dispute highlights contrasting interpretations of biotechnology patents and their applicability to modern mRNA medicines.

Bayer's Arguments Arguments from Vaccine Manufacturers
Bayer contends that its patented codon optimization technologies represent foundational innovations that remain relevant to current mRNA platforms. Pfizer, BioNTech, Moderna, and Johnson & Johnson maintain that Bayer's claims lack sufficient legal and scientific basis
The company alleges that vaccine developers benefited from techniques covered by its intellectual property without obtaining the necessary licenses. The defendants argue that the patents in question were primarily associated with plant biotechnology and insecticidal gene applications rather than human therapeutics.
Bayer seeks financial compensation, including damages and potential future royalty payments, instead of halting vaccine production. They contend that modern mRNA vaccine development relies on numerous independent innovations, research efforts, and technological advancements developed over several decades.
The company argues that patent protections should extend to modern applications derived from earlier scientific breakthroughs and that its innovations contributed to the technological foundation of today's mRNA therapies The companies have requested dismissal of the lawsuits, asserting that Bayer is attempting to extend patent rights beyond their intended scope and applicability.
Bayer believes that companies using technologies covered by its patents should provide appropriate compensation for the commercial use of those innovations The defendants maintain that the patents cited by Bayer do not directly cover the specific technologies and methods employed in their COVID-19 vaccines.

Expert and Industry Reactions

The lawsuits have attracted considerable attention from intellectual property experts, biotechnology researchers, and pharmaceutical industry analysts. Many legal observers view the case as part of a broader trend of increasingly complex patent disputes surrounding high-value biomedical innovations.

Patent attorneys note that the courts will likely focus on whether Bayer's patents are sufficiently broad to cover modern mRNA technologies and whether the alleged inventions directly contributed to the vaccines in question. Biotechnology experts emphasize that contemporary mRNA products incorporate numerous scientific advances, including lipid nanoparticle delivery systems, sequence engineering, manufacturing processes, and stabilization techniques.

Industry analysts believe the outcome could influence future licensing negotiations and intellectual property strategies across the biotechnology sector. Regardless of the final verdict, the case underscores the growing importance of patent ownership in an era where breakthrough technologies such as mRNA therapeutics, gene editing, and personalized medicine are becoming increasingly valuable commercial assets.

The Future of mRNA Technology and Intellectual Property

mRNA Technology

In the prospective era, this will have an immersive role in tailored cancer vaccines, which foster the analysis of each patient’s tumor genome to evolve precision immunotherapies. Many research activities are emphasizing the development of vaccines to target HIV, Epstein-Barr virus, malaria, and universal influenza, with mRNA-based protein-replacement therapies for genetic & autoimmune diseases.

Many manufacturers are promoting self-amplifying RNA (saRNA) & AI-optimized, decentralized manufacturing platforms to enhance RNA stability, lower required doses, & omit ultra-cold storage challenges.

Intellectual Property

A key step will be taken by the World Health Organization and the Medicines Patent Pool, which are spurring voluntary, collaborative models to establish localized manufacturing capabilities in low- & middle-income nations. Besides this, robust leaders are focusing on the exploration of highly specific IP portfolios, specifically for cancer neoantigen therapies, gene editing, & treatments for rare genetic diseases.

Conclusion

The Bayer-Monsanto mRNA patent dispute highlights the growing intersection of biotechnology innovation, intellectual property rights, and commercial competition. As courts assess the scope and validity of decades-old patents, the outcome may shape future licensing practices, research collaborations, and patent strategies across the life sciences sector. Regardless of the verdict, the case underscores the immense value of mRNA technology and the increasing importance of protecting foundational scientific innovations globally.

About the Experts

Aditi Shivarkar

Aditi Shivarkar

Aditi leads as Vice President at Towards Healthcare and brings over 15 years of experience in healthcare research, innovation, and strategy. She works closely with data from across the healthcare sector and turns it into clear direction that companies can actually use. Her work covers pharmaceuticals, medical devices, and digital health. She helps businesses understand where the market is going and how to respond with confidence. Aditi focuses on practical thinking, strong decision-making, and delivering real results that make a difference.

Aman Singh

Aman Singh

Aman Singh brings over 13 years of experience in healthcare research and consulting. He studies global healthcare trends and keeps a close eye on areas like biotech, AI in healthcare, and new treatment approaches. At Towards Healthcare, he leads the research team and makes sure the work stays accurate, useful, and easy to understand. Aman breaks down complex changes in the industry and helps businesses make smart, informed decisions.

Piyush Pawar

Piyush Pawar

Piyush Pawar works as Senior Manager for Sales and Business Growth at Towards Healthcare, with more than 10 years of experience in the healthcare space. He works directly with clients and helps them find the right research for their needs. He makes sure clients understand the insights and know how to use them in their business. Piyush builds strong relationships and focuses on helping companies grow by turning research into clear, practical action.