Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6238442 | Yellow dye mixtures comprising water-soluble fiber-reactive azo dyes and use thereof | Christian Schumacher | 2001-05-29 |
| 6168636 | Dye mixtures of fiber-reactive azo dyes and their use | Bengt-Thomas Grobel, Christian Schumacher, Mieke Schaffeld, Karl Krieger, Dierk Rohrig | 2001-01-02 |