Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6797016 | Dye composition, their production and their use | Georg Schofberger, Jurgen Geiwiz | 2004-09-28 |
| 6764524 | 1:2 chromium complex dyes, their production and use | — | 2004-07-20 |
| 6696553 | Anthraquinone-azo dyes and use of such compounds | — | 2004-02-24 |
| 6309427 | Method of coloring aluminum oxide layers | — | 2001-10-30 |
| 6210448 | 1:2 chromium complex dyes, the production and use thereof | — | 2001-04-03 |
| 5853431 | 1:2 Chromium complexes, their production and use | — | 1998-12-29 |
| 5112940 | Polyetheresters, their production and use | — | 1992-05-12 |