Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4830998 | Hydrocarbon isomerization catalyst, process for its preparation, and use thereof | Georges Szabo | 1989-05-16 |
| 4810367 | Process for deasphalting a heavy hydrocarbon feedstock | Didier Chombart, Michel Laborde | 1989-03-07 |