Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859752 | Alkene/excess maleic anhydride polymer manufacture | Thomas P. Bosanec, Calvin J. Verbrugge | 1989-08-22 |
| 4849489 | Continuous process and system for producing polymers comprising maleic anhydride and certain alpha-olefins | Franck E. Benhamou, Calvin J. Verbrugge | 1989-07-18 |