Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6117825 | Polyisobutylene succinimide and ethylene-propylene succinimide synergistic additives for lubricating oils compositions | Christopher S. Liu, Cyril A. Migdal, Norris Roland Crawford | 2000-09-12 |