Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879394 | Reaction of olefins with maleic anhydride | Charles L. Edwards | 1989-11-07 |
| 4822911 | Process for the selective separation of vinylidene olefins from mixtures with other olefins | — | 1989-04-18 |