Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7240440 | Installation for drying waste, in particular wastewater purifying sludge | — | 2007-07-10 |
| 5207907 | Compact apparatus for treating sludge by draining and pressing | Joseph Andrieu, Patrick Bele | 1993-05-04 |
| 4990246 | Separator for two non-miscible liquids | Jean Blazejczak | 1991-02-05 |
| 4681680 | Device for the selective and continuous recovery of hydrocarbons present in the form of a sheet at the surface of an aqueous medium | Roger Chaumont | 1987-07-21 |
| 4191651 | Separator for two immiscible liquids | Philippe J. Cheysson, Yvon J. Le Guen | 1980-03-04 |