Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5080812 | Thiophosphoretted compounds, their preparation and their use as additives for lubricants | Guy Parc, Nicole Thevenin, Jacques Lallement | 1992-01-14 |
| 5045221 | Polysulphurized olefin compositions, their preparation and their use as additives for lubricants | Lucienne Briquet, Jacques Lallement, Guy Parc | 1991-09-03 |
| 4983558 | Process for presulfurizing a hydrocarbon treatment catalyst | Guy Parc, Herve Toulhoat | 1991-01-08 |
| 4882446 | Metal dihydrocarbyl-dithiophosphyl-dithiophosphates their manufacture and use as additives for lubricants | Jacques Lallement, Pierre Marchand, Guy Parc, Nicole Thevenin | 1989-11-21 |
| 4839069 | Olefin polysulfide compositions their manufacture and use as additives for lubricants | Lucienne Briquet, Jacques Lallement, Guy Parc | 1989-06-13 |
| 4795576 | Polysulfided olefin compositions, their preparation and use as additives for lubricants | Lucienne Briquet, Guy Parc, Daniel Paquer | 1989-01-03 |
| 4766228 | Metal dihydrocarbyl-dithiophosphyl-dithiophosphates their manufacture and use as additives for lubricants | Jacques Lallement, Pierre Marchand, Guy Parc, Nicole Thevenin | 1988-08-23 |
| 4737298 | Process for manufacturing soluble organic calcium complexes, the resultant complexes and their use, particularly as additives for improving the combustion of gas oils and fuel oils | Lucienne Briquet, Guy Parc, Nicole Thevenin | 1988-04-12 |
| 4645610 | Method for the preparation of olefin polysulfides, the products obtained and their utilization as lubricant additives | Guy Parc, Lucienne Briquet, Daniel Paquer | 1987-02-24 |
| 4352729 | Process for hydrotreating heavy hydrocarbons in the presence of a molybdenum containing catalyst | Yves Jacquin, Dai-Nghia Huynh | 1982-10-05 |
| 4347062 | Complexes of high iron content soluble in organic media and usable as combustion additives in liquid fuels | Lucienne Briquet, Gabriel de Gaudemaris | 1982-08-31 |