Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10836459 | Self-propelled integrated ship for transporting and installing immersed tubes of underwater tunnel and construction process | Qiang Guo, Zengjun Li | 2020-11-17 |
| 10781567 | Foundation treatment method for piling foundation structure by penetrating hardpan layer | Naishou Zhang, Chao Gao, Zengjun Li, Bingchuan Guo | 2020-09-22 |