Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6623534 | Black dye mixtures of fiber-reactive azo dyes, methods for their preparation and use thereof for dyeing hydroxy-and/or carboxamido-containing fiber material | Joachim Steckelberg, Werner Russ | 2003-09-23 |
| 6624291 | Yellow-reactive monoazo dyes containing a tertiary or a quarternary nitrogen group, methods for their preparation and use thereof for dyeing hydroxy-and/or carboxamido-containing fiber material | — | 2003-09-23 |