Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5160460 | Ventilation system for a liquid-filled basin | Helmut Goetz, Peter Steinbach | 1992-11-03 |
| 5049266 | Device and method for microbiological water treatment | Helmut Götz, Peter Steinbach | 1991-09-17 |