Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11420139 | Filter press and filter press of spiral vibration cake unloading by pulling apart filter plates twice | Guozhi LIU, Wei Song, Dongling Liu | 2022-08-23 |
| 11344825 | High-efficiency filter press | Fengjiang Liu, Baochang Liu | 2022-05-31 |
| 9548791 | Remote operation and control system for pressure filter | Fengqi Yan | 2017-01-17 |
| 8206582 | Shaking device for filter plates of filter press | Baochang Liu | 2012-06-26 |