Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861932 | Aromatization process | Nai Y. Chen, Thomas F. Degnan | 1989-08-29 |
| 4849568 | Stabilization of zinc on catalysts | Paul G. Rodewald | 1989-07-18 |
| 4840929 | Zeolite beta with improved regeneration characteristics | Nai Y. Chen | 1989-06-20 |
| 4835336 | Method for suppressing hydrogenolysis of noble metal/low acidity zeolites | — | 1989-05-30 |
| 4828812 | Titanosilicates of enhanced ion exchange capacity and their preparation | Nai Y. Chen, Scott Han | 1989-05-09 |
| 4827068 | Aromatization with catalyst comprising noble-metal containing titanosilicate having the structure of zeolite beta | Nai Y. Chen | 1989-05-02 |
| 4814543 | Nitrogen resistant paraffin hydroisomerization catalysts | Nai Y. Chen, William E. Garwood | 1989-03-21 |