Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5725607 | Method for reducing the toxicity of spent liquors and novel cationic dyes | Henry Giera, Felix Reichel, Horst Berneth, Thomas Böcker, Karin Hassenruck +1 more | 1998-03-10 |
| 5578711 | Process for the preparation of dyestuffs | Roderich Raue, Alfred Brack | 1996-11-26 |
| 5541299 | Process for the preparation of dyestuffs | Roderich Raue, Alfred Brack | 1996-07-30 |
| 5502171 | Process for the preparation of dyestuffs | Roderich Raue, Alfred Brack | 1996-03-26 |
| 5436323 | Cationic 1,3,4-thiadiazole dyestuffs | Horst Berneth, Werner Hartwich | 1995-07-25 |
| 5328993 | Cationic triazatrimethine dyestuffs | Hauke Furstenwerth, Roderich Raue, Alfred Brack | 1994-07-12 |