Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8382857 | Method for the reactive coloration of leather | Andrea Zamponi, Harald Kiesow | 2013-02-26 |
| 8372161 | Method for the reactive coloring of leather | Andrea Zamponi, Rolf Streicher, Harald Kiesow, Rainer Erhardt | 2013-02-12 |
| 7371892 | Method for processing β-sulphatoethylsulphonylaniline-2-sulphonic acid | — | 2008-05-13 |