Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6110388 | Sludge filtration device comprising a filter piston, and sludge treatment plant and sludge filtration process thereof | Bernard Neveu | 2000-08-29 |
| 5979304 | Separation of sludge from liquid by piston-aided filtration | — | 1999-11-09 |