Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4795792 | Process for preparing particles of olefin-maleic anhydride copolyer | Shoji Ohtani, Rikio Tsushima | 1989-01-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4795792 | Process for preparing particles of olefin-maleic anhydride copolyer | Shoji Ohtani, Rikio Tsushima | 1989-01-03 |