Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4518481 | Process for production of oxidation-resistant hydrocarbon oil composition, and oxidation-resistant composition made thereby | — | 1985-05-21 |
| 4239634 | Lubricating oil containing a surface active agent | Marcel Prillieux, Robert Tirtiaux | 1980-12-16 |