Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5665124 | Process for dyeing and printing materials containing hydroxyl and/or carboxamide groups | Joachim Wolff | 1997-09-09 |
| 5625042 | Diazo reactive dyestuffs, their preparations and use | Joachim Wolff | 1997-04-29 |