Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11898447 | Full-circle secondary lining inverted arch construction formwork system for long-distance tunnel and formwork transporting method | Xiaosong Dai, Kaiyang Liu, Ruihua Jia, Haihua Gu, Yisheng Ye +6 more | 2024-02-13 |
| 11480054 | Rapid construction method for secondary lining of small-section tunnel | Xiaosong Dai, Nanshan Yu, Kaiyang Liu, Yisheng Ye, Haijun Zhu +5 more | 2022-10-25 |