Moderna said it is suing Pfizer and its German partner BioNTech for patent infringement in the development of the first COVID-19 vaccine, the BBC reported.
The American pharmaceutical company claims that the mRNA technology it developed before the pandemic was copied.
The lawsuit, which seeks unspecified financial damages, was filed in Germany and the US state of Massachusetts.
Pfizer declined to comment, arguing that they had not yet received the documents in the case.
Moderna said in a statement that Pfizer/BioNTech copied two types of its intellectual property. One involves an mRNA structure that Moderna says its scientists began developing in 2010 and were the first to confirm its effectiveness and safety in human clinical trials in 2015.
The second alleged violation involves the coding of the spike protein on the outside of the virus itself.
We are filing these lawsuits to protect the innovative mRNA technology we are pioneering. We invested billions of dollars in its creation and patenting in the decade leading up to the COVID-19 pandemic, Moderna CEO Stefan Bansel said in a statement.