Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842717 | Process for dewaxing gas oils | Pierre Bredael | 1989-06-27 |
| 4831200 | Process for the selective hydrogenation of alkynes | Guy Debras, Georges E. M. J. De Clippeleir, Raymond M. Cahen | 1989-05-16 |
| 4810356 | Process for treating gas oils | Pierre Bredael | 1989-03-07 |