Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4523926 | Mixtures of disperse dyestuffs | Horst Brandt, Rolf Muders, Hans Otten, Dieter Wiegner | 1985-06-18 |
| 4342701 | Process for the preparation of 4,5-dinitro-1,8-dihydroxyanthraquinone | Werner Steinbeck | 1982-08-03 |
| 4296044 | Process for the preparation of cationic anthraquinone dyestuffs | Karl H. Duchardt | 1981-10-20 |
| 4278607 | Process for the preparation of dimethoxyanthraquinones | Helmut Seidler | 1981-07-14 |
| 4256460 | Process for dyeing and printing cellulose fibres | Werner Kuhnel, Robert Kuth | 1981-03-17 |
| 4255151 | Process for dyeing and printing cellulose fibres | Volker Hederich, Robert Kuth, Werner Kuhnel | 1981-03-10 |
| 4210413 | Transfer printing process | Walter Hohmann | 1980-07-01 |