Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11820096 | Multi plate screw press sludge dewatering machine | Gangfan Sun, Daoguang Liu | 2023-11-21 |
| 11738326 | Special pig manure charcoal modified by amino grafting, preparation method thereof, and its application in the reuse of nitrogen from farmland drainage | Shengdao Shan, Haifeng Zhuang, Genxing Pan, Qiaona Xie | 2023-08-29 |
| 11034603 | Multi plate screw press sludge dewatering machine | Gangfan Sun, Daoguang Liu | 2021-06-15 |