Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871444 | Distillate fuel quality of FCC cycle oils | Nai Y. Chen, Billy K. Huh, Anil B. Ketkar | 1989-10-03 |
| 4830729 | Dewaxing over crystalline indium silicates containing groups VIII means | Ralph M. Dessau, Ernest W. Valyocsik | 1989-05-16 |
| 4828678 | Catalytic cracking | Darrell D. Whitehurst | 1989-05-09 |