Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11255127 | Drill bit with joint function of induced unloading and abrasive jet and drilling method thereof | Yongwang Liu | 2022-02-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11255127 | Drill bit with joint function of induced unloading and abrasive jet and drilling method thereof | Yongwang Liu | 2022-02-22 |