Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11486201 | Fixed cutting structure-composite cone drill bit | Qin Wang, Lian Chen, Zhiming Shi | 2022-11-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11486201 | Fixed cutting structure-composite cone drill bit | Qin Wang, Lian Chen, Zhiming Shi | 2022-11-01 |