Issued Patents 1989
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886926 | Catalytic dehydrogenation of hydrocarbons over tin-containing crystalline microporous materials | Ernest W. Valyocsik, James C. Vartuli | 1989-12-12 |
| 4884531 | Operation of an internal combustion engine with a pre-engine reformer | Thomas F. Degnan | 1989-12-05 |
| 4882040 | Reforming process | Ernest W. Valyocsik | 1989-11-21 |
| 4876228 | Zeolite modifications | Clarence D. Chang, Cynthia T-W. Chu, Pochen Chu, William E. Garwood, Guenter H. Kuehl +2 more | 1989-10-24 |
| 4868145 | Dehydrogenation and dehydrocyclization catalyst | Ernest W. Valyocsik | 1989-09-19 |
| 4867864 | Dehydrogenation, dehydrocyclization and reforming catalyst | — | 1989-09-19 |
| 4851599 | Styrene production | — | 1989-07-25 |
| 4849567 | Catalytic dehydrogenation of hydrocarbons over indium-containing crystalline microporous materials | Randall D. Partridge, Ernest W. Valyocsik | 1989-07-18 |
| 4830729 | Dewaxing over crystalline indium silicates containing groups VIII means | Ernest W. Valyocsik, Chaya R. Venkat | 1989-05-16 |
| 4822942 | Styrene production | Ernest W. Valyocsik | 1989-04-18 |