Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5152801 | Process for dyeing leather with an aqueous bath containing sulfonated carbon black and black anionic dye | Hans Altermatt, Alois Puntener, Peter Moser | 1992-10-06 |
| 5066309 | Liquid metal complex dye preparations, process for their preparation and their use | Pia Grimbu/ hler-Can | 1991-11-19 |
| 4923481 | Aqueous dispersion of a metallizable dye and sulfonated aromatic condensate | Roberto Galli | 1990-05-08 |
| 4820311 | Solid formulation of anionic dyes containing an ethoxylated stearyl diphenyloxyethyl diethylene-triamine | — | 1989-04-11 |
| 4465491 | Solid dye preparation of water soluble dyes with aliphatic aminocarboxylic acid | Paolo Balliello, Paul Erzinger | 1984-08-14 |