Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4981982 | Condensation catalyst and catalytical condensation process for organic carboxylic anhydrides | Yoshio Yokoyama | 1991-01-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4981982 | Condensation catalyst and catalytical condensation process for organic carboxylic anhydrides | Yoshio Yokoyama | 1991-01-01 |