Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11697970 | Directly connected drill pipe applicable to extreme conditions | Hao Yin, Jian Liang, Xinmiao Li, Jianhua Sun, Xiumei Liu | 2023-07-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11697970 | Directly connected drill pipe applicable to extreme conditions | Hao Yin, Jian Liang, Xinmiao Li, Jianhua Sun, Xiumei Liu | 2023-07-11 |