Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871699 | Process for reducing coke on spent catalyst in a fluid catalytic cracking unit | Robert J. Fahrig, James L. Aderhold Jr. | 1989-10-03 |
| 4859310 | Catalytic cracking of whole crude oil | Scott J. Ringle, Kathy S. Nicholes | 1989-08-22 |