Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10780561 | Detaching tool | Hailong Gao, Lizhao Hou, Ji Zhang, Yanhong Liu, Lei Lv +1 more | 2020-09-22 |
| 10745605 | Plugging agent for temperature-resistant calcium-resistant water-based drilling fluid used in oil and gas reservoir protection, drilling fluid, and uses thereof | Yuping Yang, Jingping Liu, Long Li, Dongyang Li, Lei Guo +1 more | 2020-08-18 |