Issued Patents 1982
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4364864 | 1:2 Cobalt and chromium complex unsymmetrical azo dyes | Gerhard Back, Hans U. Schutz | 1982-12-21 |
| 4340536 | Chrome-complex dyes and the production and use thereof | — | 1982-07-20 |
| 4331596 | Arylazoarylazo-substituted azo, azomethine 1:2 chromium complex dyes | Gerhard Back | 1982-05-25 |
| 4315854 | Chromium and cobalt complex amino hydroxy azomethine dyes | Alois Puntener | 1982-02-16 |
| 4314937 | 1:2 Chromium unsymmetrical complexes of azo and disazo dyes | — | 1982-02-09 |
| 4312808 | Red monoazo dyestuffs | Paul Lienhard | 1982-01-26 |
| 4311641 | Chromium complexes of mixed azo compounds | — | 1982-01-19 |