Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889896 | Process for the imidization of copolymers of maleic anhydride with vinyl-aromatic monomers | Umberto Giannini, Enrico Albizzati, Italo Borghi, Antonio Alfonso Proto | 1989-12-26 |