Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6495496 | Hydroxy aromatic mannich base condensation products and the use thereof as soot dispersants in lubricating oil compositions | Antonio Gutierrez, Mark G. Stevens, Robert A. Kleist | 2002-12-17 |
| 6475963 | Carboxylate-vinyl ester copolymer blend compositions for lubricating oil flow improvement | David J. Martella | 2002-11-05 |