Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10989036 | Drilling casing and method of performing fast drilling and completion of large-borehole multilateral well | Chuanliang Yan, Xu Ren, Yuanfang Cheng, Wanqing Tian, Yang Li +2 more | 2021-04-27 |