Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5405530 | Separator for separating floating and sinking matter from waste water contaminated with said matter | Gunter Diefenbach, Kurt Helffenstein | 1995-04-11 |
| 4842745 | Process for separating organic compounds from water by extraction | Peter Belouschek | 1989-06-27 |
| 4486307 | Filter apparatus having filter bed back-washing means | — | 1984-12-04 |