Updates paragraph 1 with details, adds background, other details in paragraphs 2,3,4, 6,7, 8
May 19 (Reuters) - CureVac NV CVAC.O said on Friday it had filed an expanded patent infringement claim against Pfizer Inc PFE.N and BioNTech BNTX.O over the use of mRNA technology and that a U.S. court had granted its request to transfer the trial.
The company said it filed a counterclaim alleging that Pfizer and its German partner BioNTech infringed on nine of its patents, broader than its original claim of three patents.
In July 2022, CureVac had filed a patent lawsuit against BioNTech over the use of mRNA technology in the companies' COVID-19 vaccine.
The transfer of the trial to the Eastern District of Virginia from the Federal District Court of Massachusetts is expected to accelerate progress of the case and allow for a likely 2024 trial date, CureVac said on Friday.
Pfizer and BioNTech did not immediately respond to requests for comment.
Pfizer and BioNTech in response had filed a complaint with the U.S. District Court in Massachusetts, seeking a judgment that they did not infringe U.S. patents held by CureVac.
The companies have previously told the court that their COVID vaccine Comirnaty does not work in the same way as CureVac's patented technology.
Pfizer and BioNTech are also facing patent infringement lawsuits from other companies.
FACTBOX-Moderna sues Pfizer as patent owners fight over mRNA vaccine technologyhttps://www.reuters.com/legal/moderna-sues-pfizer-patent-owners-fight-over-mrna-vaccine-technology-2022-08-26/
(Reporting by Raghav Mahobe and Bhanvi Satija in Bengaluru; Editing by Sriraj Kalluvila)
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