Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10822881 | Split roller cone and PDC composite drill bit | Yinglin Yang, Hongzhi He, Lin Yang, Jie Xiong, Yi Zhou +2 more | 2020-11-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10822881 | Split roller cone and PDC composite drill bit | Yinglin Yang, Hongzhi He, Lin Yang, Jie Xiong, Yi Zhou +2 more | 2020-11-03 |