Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5019286 | Low viscosity aromatic carbonate lubricating oil concentrates | Paul K. Ladwig | 1991-05-28 |
| 4584111 | Use of vinyl addition copolymers to improve quality of lubricating oil additives | Terry L. Collett, Terence F. Finch | 1986-04-22 |