Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11326402 | Hybrid bit with roller cones having inserts | Guanfu Tu, Qiang Liu, Xiaobo Liu | 2022-05-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11326402 | Hybrid bit with roller cones having inserts | Guanfu Tu, Qiang Liu, Xiaobo Liu | 2022-05-10 |