Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11499377 | Force modulation system for a drill bit | Ming Zhang, Chris Cheng, Xiongwen Yang | 2022-11-15 |
| 11499378 | Blade cap force modulation system for a drill bit | Ming Zhang, Chris Cheng, Qi Peng, Xiaohua Ke | 2022-11-15 |
| 11401749 | Cutting element with reduced friction | Chris Cheng, Jianhua Guo, Jie Li, Xihui Hu, Yonghong Wang | 2022-08-02 |
| 11365589 | Cutting element with non-planar cutting edges | Chris Cheng, Xu Wang, Xiongwen Yang, YU-LIN LIU | 2022-06-21 |