Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863624 | Dispersant additives mixtures for oleaginous compositions | Jacob Emert, Robert D. Lundberg | 1989-09-05 |
| 4839073 | Polyolefinic succinimide polyamine alkyl acetoacetate and substituted acetate adducts as compatibilizer additives in lubricating oil compositions | Antonio Gutierrez, Jacob Emert, Robert A. Kleist | 1989-06-13 |