Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5308523 | VI improver, dispersant, and antioxidant additive and lubricating oil composition | Thomas F. DeRosa, Benjamin J. Kaufman, Rosemary J. Jennejahn | 1994-05-03 |
| 5112508 | VI improver, dispersant, and antioxidant additive and lubricating oil composition | Thomas F. DeRosa, Benjamin J. Kaufman, Rosemary J. Jennejahn | 1992-05-12 |