Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4517093 | Process for the biological purification of waste water | Gerhard Muller, Gunther Sell, Alexander Bauer | 1985-05-14 |
| 4251371 | Device for the biological purification of waste water | Alexander Bauer, Gerhard Muller, Gunther Sell | 1981-02-17 |