Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4685934 | Mono- and di-sulfo group containing compound having a substituted pyrazolyl diazo component radical and their use | Roland Mislin | 1987-08-11 |
| 4384870 | Disazo compounds having a sulfo group-containing diazo component radical, a 1,4-phenylene middle component radical having a substituted amino group and a coupling component radical having a free, acylated or etherified hydroxy group | — | 1983-05-24 |
| 4323498 | Carbocyclic disazo compounds containing a 2-amino-8-hydroxy-5- or 6-sulfo-naphthalene-2 coupling component radical | — | 1982-04-06 |
| 4185013 | Anionic azo dyes having a 3-dibenzofuranyl diazo component radical optionally having a 2- or 8-sulfo group | Jean-Jacques Salzmann | 1980-01-22 |