Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876228 | Zeolite modifications | Clarence D. Chang, Cynthia T-W. Chu, Pochen Chu, Ralph M. Dessau, William E. Garwood +2 more | 1989-10-24 |
| 4861570 | Novel silicate | Michael E. Landis | 1989-08-29 |
| 4828679 | Octane improvement with large size ZSM-5 catalytic cracking | William E. Cormier, William A. Stover | 1989-05-09 |
| 4797267 | Method of producing rod-shaped ZSM-5 zeolite | — | 1989-01-10 |