Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697988 | Fuel compositions | Dennis J. Malfer | 1997-12-16 |
| 5679116 | Compositions for control of induction system deposits | Don P. Hollrah, Alexander M. Kulinowski | 1997-10-21 |
| 5634951 | Additives for minimizing intake valve deposits, and their use | William J. Colucci, F. Alexander Pettigrew | 1997-06-03 |