Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861848 | Polymerization of unsaturated hydrocarbons with an induction period | Jean-Marie Basset, Jean Ollivier, Francoise Quignard | 1989-08-29 |
| 4837188 | Catalytic systems having extended duration and conservation for the metathesis of olefins | Jean-Paul Laval, Jean Ollivier, Emile Perez, Francoise Quignard, Isabelle Rico | 1989-06-06 |