Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
QC

Qingzhong Cheng

Overall (All Time): #1,974,300 of 4,157,543Top 50%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9573971 Method of preparation of antiviral compounds and useful intermediates thereof Yanling Wang, Yuan Wang, Xungui He, Chuanjun Liu, Jirang Zhu +2 more 2017-02-21
9260469 Method of preparation of antiviral compounds and useful intermediates thereof Yanling Wang, Yuan Wang, Xungui He, Chuanjun Liu, Jirang Zhu +2 more 2016-02-16