Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4917731 | Water-soluble black trisazo dyestuffs | Wolfgang Bauer, Kuno Reh, Josef Ritter | 1990-04-17 |
| 4348204 | Aqueous dyestuff formulation, a process for its preparation and its use for dyeing and printing | Wolfgang Bauer, Heinz Dickmanns, Kuno Reh, Joachim Ribka | 1982-09-07 |