Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4960874 | Isothiazolylazo dyes having aminophenyl and aminonaphthyl components | Udo Bergmann, Guenter Hansen, Ernst Schefczik, Guenther Seybold | 1990-10-02 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4960874 | Isothiazolylazo dyes having aminophenyl and aminonaphthyl components | Udo Bergmann, Guenter Hansen, Ernst Schefczik, Guenther Seybold | 1990-10-02 |