Partial year: Data through Q3 2025 (Sept 30). Full-year totals not yet available.
TL

Tiemin Liu

CL China Oilfield Services Limited: 2 patents #5 of 27Top 20%
CO China National Offshore Oil: 1 patents #5 of 20Top 25%
Overall (2025): #80,461 of 469,880Top 20%
2
Patents 2025

Issued Patents 2025

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12359519 Coring and sampling integrated sub and downhole instrument Yongren Feng, Tao-Cheng Lu, Lin Huang, Shusheng Guo, Xiaodong Chu +8 more 2025-07-15
12235194 Coring device Zhibin Tian, Tao-Cheng Lu, Lin Huang, Zanqing Wei, Yongren Feng +2 more 2025-02-25