Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5900150 | Method of purifying waste water biologically | Jean-Marc Audic | 1999-05-04 |
| 4676902 | Separation apparatus including relatively movable presser module and filtration belts | André Haubry | 1987-06-30 |