Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11774041 | Integral side slope structure of soil covering tank | Yunsheng Ma, Liqiu Zhao, Ziping Zhang, Chenghe Zhang, Qingsong Zhao +3 more | 2023-10-03 |
| 11702279 | Built-in valve chamber of tank completely covered with soil | Yunsheng Ma, Liqiu Zhao, Ziping Zhang, Shiheng Ma, Qingsong Zhao +3 more | 2023-07-18 |