Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11808090 | Force modulation system for a drill bit | Ming Zhang, Chris Cheng, Xiongwen Yang | 2023-11-07 |
| 11591858 | Cutting elements with increased curvature cutting edges | Chris Cheng, Jianhua Guo, Bo Zhou, Shijun Qiao, Chuang Zhang +3 more | 2023-02-28 |