Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5559217 | Disazo dyes and a process of dyeing paper therewith | — | 1996-09-24 |
| 5554738 | Acyl-aryl disazo having a 6-ureido-1-hydroxy-naphthalene-3-sulfonic acid coupling component | Jean-Marie Adam | 1996-09-10 |
| 5545725 | Disazo dyes consisting of two monoazo dyes contaning a 1-phenyl-5-amino pyrazole coupling component and connected by a bridge member | Willy Stingelin | 1996-08-13 |