Issued Patents 2023
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11679429 | Processing method of NPR steel rebar coil | Min Xia, Hongyan Guo, Hongchao Li | 2023-06-20 |
| 11655595 | Adjustable device for railway to cross active faults | Songfeng Guo, Shengwen Qi, Hui Zhou, Yu Zou, Zhiqing Li +6 more | 2023-05-23 |
| 11596991 | Processing method of NPR steel rebar rod | Min Xia, Hongyan Guo, Hongchao Li | 2023-03-07 |
| 11598210 | Tunnel protection structure suitable for active fault areas and high ground stress areas | Bowen Zheng, Shengwen Qi, Yongshuang ZHANG, Songfeng Guo, Hui Zhou | 2023-03-07 |
| 11578597 | Underground longwall mining method | Yajun Wang, Jun Yang | 2023-02-14 |
| 11578598 | Method for coal mining without reserving coal pillar and tunneling roadway in whole mining area | Yubing Gao, Qiang Fu, Yajun Wang | 2023-02-14 |