Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4705634 | Process and apparatus for the biological purification of wastewater | Hans Reimann | 1987-11-10 |
| 4521311 | Activated sludge system with integrated regenerator | Uwe Fuchs | 1985-06-04 |
| 4341632 | Destruction of bulking sludge | Carl-Heinz Gregor, Hans Reimann | 1982-07-27 |
| 4303527 | Surge control in the biological purification of wastewater | Hans Reimann | 1981-12-01 |
| 4193950 | Apparatus for introducing gas into a liquid | Josef Stockner | 1980-03-18 |