Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698683 | Mixed aluminium-heavy metal dyestuff complexes and a process for their preparation | Dominique Pflieger | 1997-12-16 |
| 5650515 | Salts of metal-free anionic dyes having cations containing sterically hindered amine groups | Angelos-Elie Vougioukas | 1997-07-22 |
| 5626634 | Aqueous compositions of solvent-soluble dyestuffs | J urgen Goldmann | 1997-05-06 |
| 5616778 | "Modified form of bis-1,4-[2'-(2"",5""-dimethoxycarbonylphenylazo)-3'-oxobutyramido]benzene and process for its synthesis" | J urgen Goldmann | 1997-04-01 |