Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4235598 | Azo dyestuffs containing a naphthalic imide coupler and polyether groups | Henning Reel, Winfried Kruckenberg | 1980-11-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4235598 | Azo dyestuffs containing a naphthalic imide coupler and polyether groups | Henning Reel, Winfried Kruckenberg | 1980-11-25 |