Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5607593 | Installation for making water potable with submerged filtering membranes | Pierre Cote, Michel Faivre, Catherine Moulin | 1997-03-04 |
| 5582733 | Method and installation for purifying water using variably agitated denitrifying physical-chemical sludge | Philippe Rey, Frank Rogalla | 1996-12-10 |
| 5192441 | Process and installation for biological treatment, e.g. by nitrification and/or denitrification, of an effluent including nitrated pollution | Jacques Sibony | 1993-03-09 |
| 4927543 | Method and installation for treating liquid by sedimentation using fine sand | Guy P. Bablon | 1990-05-22 |
| 4800021 | Process for biologically purifying sewage on a bed of granular material | — | 1989-01-24 |
| 4504388 | Reactor for injection of gas into a liquid | Michel Faivre | 1985-03-12 |