Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882446 | Metal dihydrocarbyl-dithiophosphyl-dithiophosphates their manufacture and use as additives for lubricants | Maurice Born, Pierre Marchand, Guy Parc, Nicole Thevenin | 1989-11-21 |
| 4839069 | Olefin polysulfide compositions their manufacture and use as additives for lubricants | Maurice Born, Lucienne Briquet, Guy Parc | 1989-06-13 |