Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6337020 | Method and device for purifying waste water comprising an additional sludge treatment by ozonation | Roger Pujol, André Haubry | 2002-01-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6337020 | Method and device for purifying waste water comprising an additional sludge treatment by ozonation | Roger Pujol, André Haubry | 2002-01-08 |