Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873067 | Zeolite ZSM-57 | Ernest W. Valyocsik, Cynthia T-W. Chu | 1989-10-10 |
| 4870038 | Olefin oligomerization with surface modified zeolite catalyst | Lewis B. Young, David A. Blain | 1989-09-26 |
| 4859648 | Layered metal chalcogenides containing interspathic polymeric chalcogenides | Michael E. Landis, Brent A. Aufdembrink, Pochen Chu, Ivy D. Johnson, Garry W. Kirker +1 more | 1989-08-22 |
| 4855527 | Olefin oligomerization with surface modified zeolite | Lewis B. Young | 1989-08-08 |