FRANKFURT—COVID-19 vaccine maker BioNTech said on Tuesday that it and partner Pfizer have filed a complaint with the U.S. District Court in Massachusetts, seeking a judgment that they did not infringe U.S. patents held by rival CureVac.
The lawsuit, filed Monday, said CureVac is trying to profit from the success of BioNTech and Pfizer’s COVID-19 vaccines after CureVac’s efforts to create its own vaccine failed.