Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5134078 | Process and plant for the removal of soil contaminants | Walter Mevius | 1992-07-28 |
| 5073256 | Equipment for biological water treatment, in particular for denitrification of raw water to produce potable water | Jurgen Wittek | 1991-12-17 |
| 4935130 | Equipment for biological water treatment, in particular for denitrification of raw water to produce potable water | Jurgen Wittek | 1990-06-19 |