Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12422057 | Control valves and cages that are adapted to reduce flashing and cavitation | Zhengyu Chen | 2025-09-23 |
| D1086047 | Cold plate frequency converter | Yuqin Yuan, Quanhong Zhou | 2025-07-29 |
| 11703146 | Control valves and cages that are adapted to reduce flashing and cavitation | Zhengyu Chen | 2023-07-18 |
| 9851013 | Valve trim assembly and flow control valve including the valve trim assembly | Qiyong Zhou, Chun Gao | 2017-12-26 |
| 9212075 | Method for retreating dewatered sludge | Huansheng Zhong, Jiacong Wu, Jiayu Chen | 2015-12-15 |
| 9115814 | Valve trim apparatus having a cavity to receive contaminates from a sealing surface | Chun Gao, Zhengyu Chen | 2015-08-25 |
| 9021716 | Devices for air-drying sludge | Huansheng Zhong, Xuewei Wu, Jiacong Wu, Haiying Yang | 2015-05-05 |
| 8808419 | Method of integration of concentration-dehydration and aerobic air-drying of sewage sludge | Huansheng Zhong, Xuewei Wu, Jiacong Wu, Haiying Yang | 2014-08-19 |
| 8387275 | Method for drying sludge | Huansheng Zhong, Lei Li, Jiacong Wu, Xuewei Wu, Haiying Yang | 2013-03-05 |