Issued Patents 2025
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416237 | Methods for grout injection repair and water retention in goaf | Yifan Zeng, Hao Li, Qiang Wu, Weihong Yang, Aoshuang Mei +1 more | 2025-09-16 |
| 12345610 | Method for testing and evaluating lateral stiffness of small box girder bridge | Yingsheng Ni, Chunxia Song, Xuefeng Zhang, Yongchang Zhang | 2025-07-01 |
| 12338721 | Coal mining system and method of dual circulation drilling with mechanical reaming and abrasive jet | Yifan Zeng, Qiang Wu, Zilong Yuan, Hao Li, Junhao Ren +2 more | 2025-06-24 |
| 12241340 | Coal and coalbed methane mining system based on ground drilling, method and related device | Yifan Zeng, Qiang Wu, Junhao Ren, Zilong Yuan, Fulong Zhai +2 more | 2025-03-04 |
| 12241371 | Integrated mining method of coal breaking, coal extraction and water circulation in U-well and system thereof | Yifan Zeng, Qiang Wu, Hao Li, Junhao Ren, Zeyang Liu +2 more | 2025-03-04 |