Issued Patents 1989
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882039 | Catalytic cracking of hydrocarbons with oxygen promoted alkali metal zeolite cracking catalyst | Thomas F. Degnan | 1989-11-21 |
| 4877581 | Catalyst for dewaxing hydrocarbon feedstock | Dennis E. Walsh | 1989-10-31 |
| 4871444 | Distillate fuel quality of FCC cycle oils | Billy K. Huh, Anil B. Ketkar, Chaya R. Venkat | 1989-10-03 |
| 4862836 | Operation of an internal combustion engine with a pre-engine converter | Thomas F. Degnan, Sr. | 1989-09-05 |
| 4861932 | Aromatization process | Thomas F. Degnan, Sharon B. McCullen | 1989-08-29 |
| 4851109 | Integrated hydroprocessing scheme for production of premium quality distillates and lubricants | Rene B. LaPierre, Randall D. Partridge, Stephen S. Wong | 1989-07-25 |
| 4840929 | Zeolite beta with improved regeneration characteristics | Sharon B. McCullen | 1989-06-20 |
| 4828812 | Titanosilicates of enhanced ion exchange capacity and their preparation | Sharon B. McCullen, Scott Han | 1989-05-09 |
| 4827068 | Aromatization with catalyst comprising noble-metal containing titanosilicate having the structure of zeolite beta | Sharon B. McCullen | 1989-05-02 |
| 4808296 | Process for dewaxing hydrocarbon feedstock | Dennis E. Walsh | 1989-02-28 |
| 4803186 | Shape selective crystalline silicate zeolite containing intermetallic component and use as catalyst in hydrocarbon conversions | Thomas F. Degnan, Paul B. Weisz | 1989-02-07 |