Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12196042 | Wear-resistant and collision-resistant polycrystalline diamond compact (PDC) drill bit with rostriform teeth and plurality of blades | Chengsong Yang, Hao Yu, Jianhua Guo, Jiachang Nie, Chengxiu Yu +7 more | 2025-01-14 |
| 11154844 | Cobalt carbide-based catalyst for direct preparation of olefin from synthesis gas, preparation method therefor and application thereof | Zhengjia Li, Liangshu Zhong, Yuhan Sun, Fei Yu, Yunlei An +4 more | 2021-10-26 |
| 9850716 | Remote-controlled adjustable-speed screw drill for gas-drive hydraulic-motive during gas drilling | Ying Zhang, Zhanghua Lian, Qiang Zhang, Yong He, Gao Li +2 more | 2017-12-26 |