Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363917 | 3,5-Disubstituted phthalic acid imides, phthalic acids and phthalic acid anhydrides | Vratislav Kvita, Hans Zweifel | 1982-12-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4363917 | 3,5-Disubstituted phthalic acid imides, phthalic acids and phthalic acid anhydrides | Vratislav Kvita, Hans Zweifel | 1982-12-14 |