Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6048460 | Biological method of treating sewage containing high concentrations of sludge | Wolfgang Horz, Hans Lohe | 2000-04-11 |
| 5690834 | Process and apparatus for separating off suspended matter from liquids | Horst Bennoit, Gerhard Muller | 1997-11-25 |