Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11021919 | Mud circulation system for reducing the swab pressure while tripping out | Yidi Wang, YueZhi Wang, Xi Wang, Siyang Li | 2021-06-01 |
| 10978719 | Platinum/black phosphorus-carbon sphere methanol fuel cell anode catalyst and preparation method thereof | Zonghua Wang, Zhenyu Wang, Xing Luo, Xiaofang Duan | 2021-04-13 |