Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11619131 | Six-arm tunneling and anchoring machine for integrating tunneling and anchoring | Changyan Pu, Limin Wu, Qi Liu, Yaohui FAN, Zhonghua Ren +1 more | 2023-04-04 |
| 11459888 | Auxiliary transportation and support system used after rapid excavation | Changyan Pu, Limin Wu, Wenguang Cheng, Min Zheng, Qi Liu +2 more | 2022-10-04 |