Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839320 | Method for treating and stabilizing zeolite catalysts | Shun C. Fung | 1989-06-13 |
| 4824816 | Method for producing stabilized zeolite catalysts | Shun C. Fung, Thomas Henry Vanderspurt | 1989-04-25 |