Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5545725 | Disazo dyes consisting of two monoazo dyes contaning a 1-phenyl-5-amino pyrazole coupling component and connected by a bridge member | Adolf K aser | 1996-08-13 |
| 5241054 | Cationic azo dyes | — | 1993-08-31 |
| 5143519 | Concentrated acid dye solutions: storage stable aqueous dye concentrate with di-ethyl-amino-propylamine | — | 1992-09-01 |
| 5010190 | Cationic compounds | — | 1991-04-23 |
| 4940783 | Disazo containing diaminostilbene as diazo component and an aniline coupling component bearing a cationic alkyl ammonium group | — | 1990-07-10 |
| 4921945 | Disazo dyes containing an acetoacetabukube coupling component and a quaternized aminoalkylene aminocarbonyl group bound to it | — | 1990-05-01 |
| 4873319 | Disazo dyes containing a pyrimidine coupling component and a cationic alkyl ammonium group | — | 1989-10-10 |
| 4652645 | Cationic compounds | Jean-Marie Adam | 1987-03-24 |
| 4650867 | Process for the preparation of 2,4,6-tris(aminophenylamino)triazines | Roland Ronco, Ernst Hanggi | 1987-03-17 |
| 4462805 | Mixture of cationic compounds for dyeing and printing textiles, leather and paper | Peter Loew | 1984-07-31 |
| 4439204 | Dye salts | Peter Loew | 1984-03-27 |
| 4380627 | Cationic compounds | Peter Loew | 1983-04-19 |