Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5075012 | Process for dewatering sludges in filter presses | — | 1991-12-24 |
| 5011601 | Filter plates for plate filter presses | — | 1991-04-30 |
| 4587015 | Plate filter press | — | 1986-05-06 |
| 4486306 | Filter press with filter plates mutually locked and individually consecutively slidable after release of locking means | Hugo Klesper | 1984-12-04 |
| 4427554 | Method for applying a secondary filter layer or precoat layer in a plate filter press, and plate filter press for performing the method | Hugo Klesper | 1984-01-24 |
| 4405457 | Plate-type filter press with a cleaning truck | Hugo Klesper | 1983-09-20 |
| 4370232 | Sludge de-watering plant with a plurality of filter presses connected in parallel | Hugo Klesper | 1983-01-25 |
| 4354947 | Process for filtering sludge-like materials in a filter press | Hugo Klesper | 1982-10-19 |
| 4265171 | Apparatus for conveying and dewatering wet coarse screenings debris | Hugo Klesper | 1981-05-05 |
| 4265749 | Chamber filter press | Hugo Klesper | 1981-05-05 |