Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4243784 | Process for producing powdered copolymers of ethylenically unsaturated compound and maleic anhydride or an ester thereof | Tosio Akima, Etsuzaburo Kudou, Hiromi Kochi | 1981-01-06 |