China Revoked Gilead’s Viread Patent in a Final Judgement May 19, 2016 JChen 155 Comments In a final judgment on April 26, 2016, Beijing Highest People’s Court invalidated Gilead Science’s Chinese Patent No. 200710196265.3 related to HIV/AIDS and hepatitis B drug Viread (tenofovir disoproxil fumarate) for lack of novelty.