Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9322398 | Concrete pumping structure and control method thereof | Xiaogang Yi, Shijian Liu | 2016-04-26 |
| 8037682 | Method and device for suppressing vibration of boom of concrete pump truck | Xiaogang Yi, Yonghong Liu, Guocheng Peng, Chengzhi Guo | 2011-10-18 |