Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5500118 | Biogas reactor for the anaerobic treatment of waste water | Hubert Coenen, Helmut Hubert | 1996-03-19 |
| 5431808 | Device for odor filtering of exhaust air from waste water treatment | — | 1995-07-11 |
| 5338445 | Module for a reactor for anaerobic waste water treatment | Volker Bach | 1994-08-16 |