Issued Patents 2024
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12140025 | Directional drilling method for branching borehole with short radius and system | Yifan Zeng, Weihong Yang, Qiang Wu, Xuan Xiao, Kai Pang +4 more | 2024-11-12 |
| 12129620 | Method for repairing aquifer in coal mine area | Yifan Zeng, Weihong Yang, Qiang Wu, Kai Pang, Xue Liu +4 more | 2024-10-29 |
| 12078065 | Telescopic device and telescopic annular tunnel steel arch | Zeyu Cheng, Hongshui Zhu, Shiming Du, Jun Zhao, Yun Wang +2 more | 2024-09-03 |
| 12055040 | Directional drilling device and drilling method of aquifer remediation of coal seam roof | Yifan Zeng, Weihong Yang, Qiang Wu, Xuan Xiao, Kai Pang +2 more | 2024-08-06 |