Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4756831 | Process and apparatus for removal of nitrate from surface and ground water, in particular drinking water | Peter Hoffmann, Klaus-Dieter Vorlop | 1988-07-12 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4756831 | Process and apparatus for removal of nitrate from surface and ground water, in particular drinking water | Peter Hoffmann, Klaus-Dieter Vorlop | 1988-07-12 |