Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025

Showing 1–5 of 5 inventors

Rank Inventor Primary Company Patents
1 Jiangong WANG 1
1 Letian Fan Crrc Tangshan Co. 1
1 Qinggang Zhang China University Of Petroleum (East China) 1
1 Quanmei Guan Crrc Tangshan Co. 1
1 Jijun Ma Crrc Tangshan Co. 1