U.S. lawmakers, advocacy groups and state officials who urged the Department of Health and Human Services (HHS) to march in on patents covering Gilead Sciences Inc.’s COVID-19 drug, Veklury (remdesivir), likely were disappointed, and perhaps surprised, by the Government Accountability Office’s (GAO) conclusion this week that, despite a $161.5 million taxpayer investment in the antiviral’s development, there are no government patents to march in on.