ABUS ARBUTUS BIOPHARMA CORP Legal Disputes 8-K Filing 2023 - Lawsuit against Pfizer and BioNTech for patent infringement Arbutus Biopharma Corp and Genevant Sciences filed a lawsuit against Pfizer and BioNTech for patent infringement related to COVID-19 vaccines.Get access to all SEC 8-K filings of the ARBUTUS BIOPHARMA CORP