Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4850327 | Device for improving the feed of diesel engines at low temperatures | — | 1989-07-25 |
| 4832859 | Lubricants and new polyfluorinated compounds which can be used as additives | Dominique Basset, Marc Hermant, Pierre Durual, Laurent Germanaud | 1989-05-23 |