 Moderna Inc. MRNA, 0.44 said Friday it is suing Pfizer Inc. PFE, 0.99 and German partner BioNTech SE BNTX, 1.59 for infringing patents relating to its mRNA platform, the source of the COVID vaccines developed by the three parties. The suit is to be filed Friday in the U.S. District Court for the District of Massachusetts and the Regional Court of Düsseldorf in Germany. 