Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11661799 | Shaped cutter with alignment structure for drill bit and assembly method thereof | Chris Cheng | 2023-05-30 |
| 10907416 | Polycrystalline diamond cutter with improved geometry for cooling and cutting evacuation and efficiency and durability | Chris Cheng, Hongtao Liu, Xu Wang, Yuxin Wang, Zhenzhou Yang +1 more | 2021-02-02 |
| 10563464 | Convex ridge type non-planar cutting tooth and diamond drill bit | Liang Zhao, Xiaomin Cheng, Demin Chen, Xiongwen Yang, Yonghong Wang +1 more | 2020-02-18 |