Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11674392 | Split air cabin ventilation system for construction of tunnel inclined shaft and ventilation method using same | Shuangqin CHEN, Jun Li, Runzhi Jia, Feng Cheng, Jiaqi Li +3 more | 2023-06-13 |
| 11555700 | Quick fixing device for measuring tunnel peripheral convergence and application method thereof | Rui Ren, Jie Li, Yiwei Cui, Zhifeng Wang, Fuxiang Chen +2 more | 2023-01-17 |
| 10767482 | Rescue capsule for shelter in tunnel construction | Fuxiang Chen, Zhifeng Wang, Rui Ren, Junfeng Tian, Shichao ZHANG +6 more | 2020-09-08 |