Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Guizhou, CN ranks #7,503 worldwide for total patents filed in 2021, with 12 patents from 9 inventors. Leading employers of inventors based in Guizhou, CN include Institute Of Materia Medica, Chinese Academy Of Medical Sciences, Changsha University Of Science And Technology, China Railway No. 3 Engineering Group Co..

Showing 1–9 of 9 inventors

Rank Inventor Primary Company Patents
1 Yi Zheng Institute Of Materia Medica, Chinese Academy Of Medical Sciences 3
2 Xiangjun Zeng Changsha University Of Science And Technology 2
3 Xiaolu Zuo 1
3 Deli Feng China Railway No. 3 Engineering Group Co. 1
3 Zifa Zhou China Railway No. 3 Engineering Group Co. 1
3 Shangbang Wang China Railway No. 3 Engineering Group Co. 1
3 Bochuan Zeng China Railway No. 3 Engineering Group Co. 1
3 Luwei Feng China Railway No. 3 Engineering Group Co. 1
3 Jianlin Mu China Railway No. 3 Engineering Group Co. 1