Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12311458 | Method for improving surface quality of alloy micro-area via supersaturated film and use thereof | Pengfei Guo, Lin-Jung Wu, Yansong Liu, Xin Lin, Hongbo Lan | 2025-05-27 |
| 12031410 | Well drilling tool and method for determining parameter thereof | Haiping Zhang, Yanbin Zang, Guangjun Ma, Mingguang Sun, Xinghua Tao +3 more | 2024-07-09 |
| 11946342 | Drilling tool | Baoping LU, Haiping Zhang, Mingguang Sun, Yanbin Zang, Xinghua Tao +4 more | 2024-04-02 |
| 11920437 | Well drilling acceleration tool | Haiping Zhang, Shidong DING, Mingguang Sun, Yanbin Zang, Xinghua Tao +4 more | 2024-03-05 |
| 11898417 | Drilling speed increasing device | Haiping Zhang, Yanbin Zang, Mingguang Sun, Guangjun Ma, Lishuang WANG +3 more | 2024-02-13 |