Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4213898 | Cationic 5-arylazo-6-hydroxypyridone-2 dyes | Roland Entschel, Willy Steinemann | 1980-07-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4213898 | Cationic 5-arylazo-6-hydroxypyridone-2 dyes | Roland Entschel, Willy Steinemann | 1980-07-22 |