Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882034 | Crude oil or fuel oil compositions | Robert D. Tack | 1989-11-21 |
| 4839074 | Specified C.sub.14 -carboxylate/vinyl ester polymer-containing compositions for lubricating oil flow improvement | Albert Rossi, Robert D. Tack, Jose Alves | 1989-06-13 |
| 4810262 | Fuel compositions | Stanley J. Brois | 1989-03-07 |