Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11867360 | Closed-loop safety ventilation system for fully-mounded tank | Yunsheng Ma, Chenghe Zhang, Shiheng Ma, Bo Yan, Qingsong Zhao +1 more | 2024-01-09 |
| 11774041 | Integral side slope structure of soil covering tank | Yunsheng Ma, Ziping Zhang, Chenghe Zhang, Qingsong Zhao, Chongchong Zhang +3 more | 2023-10-03 |
| 11702277 | Fully soil-covered structure of vertical tank body | Yunsheng Ma, Chenghe Zhang, Shiheng Ma, Bo Yan, Qingsong Zhao +1 more | 2023-07-18 |
| 11702279 | Built-in valve chamber of tank completely covered with soil | Yunsheng Ma, Ziping Zhang, Shiheng Ma, Qingsong Zhao, Chongchong Zhang +3 more | 2023-07-18 |