HomeBusinessPfizer, BioNTech countersue Moderna over COVID-19 vaccine patentsFILE PHOTO: Pfizer news conference in Puurs Estimated read time 1 min read FILE PHOTO: Pfizer news conference in Puurs FILE PHOTO: Pfizer company logo is seen at a Pfizer office in Puurs, Belgium, December 2, 2022. REUTERS/Johanna Geron