Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11274542 | Self-adjusting damping vibration absorber for while-drilling instruments and adjusting method thereof | Xinzhen He, Qingyun Di | 2022-03-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11274542 | Self-adjusting damping vibration absorber for while-drilling instruments and adjusting method thereof | Xinzhen He, Qingyun Di | 2022-03-15 |