Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889839 | Layered titanate containing interspathic silica catalysts | Larry A. Green, Michael E. Landis | 1989-12-26 |
| 4876228 | Zeolite modifications | Clarence D. Chang, Cynthia T-W. Chu, Ralph M. Dessau, William E. Garwood, Guenter H. Kuehl +2 more | 1989-10-24 |
| 4868146 | Zeolite catalyst composition and synthesis method | Albert B. Schwartz | 1989-09-19 |
| 4859648 | Layered metal chalcogenides containing interspathic polymeric chalcogenides | Michael E. Landis, Brent A. Aufdembrink, Ivy D. Johnson, Garry W. Kirker, Nancy M. Page +1 more | 1989-08-22 |
| 4845063 | Zeolite catalyst of improved hydrothermal stability | — | 1989-07-04 |
| 4834869 | Resid upgrading process | Philip J. Angevine, Thomas F. Degnan, Garry W. Kirker | 1989-05-30 |
| 4818738 | High equilibrium activity additive catalyst for catalytic cracking | Sadi Mizrahi | 1989-04-04 |