CC

Chong Chen

SC Sichuan Honghua Petroleum Equipment Co.: 1 patents #4 of 13Top 35%
Overall (2022): #503,161 of 548,613Top 95%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11299942 Drilling machines and methods thereof Yu Tian, Aimin Tang, Hang Gao, Zhigang Li, Yan Lyu +2 more 2022-04-12