Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4475920 | Method for obtaining improved dyeings on polyamide | — | 1984-10-09 |
| 4464180 | Compositions and method for dyeing or printing with disperse dyes | — | 1984-08-07 |
| 4441884 | Quaternary ammonium compounds and their use as dyeing assistants for polyamide fibers | Urs Mosimann | 1984-04-10 |
| 4431584 | Triazinyl reactive dyes containing a 1-naphtol-4,8-disulfonic acid component | Hermann Kaack | 1984-02-14 |
| 4424153 | 1:2 Chromium complex dyes containing sulfonic acid groups | Klaus Grychtol | 1984-01-03 |
| 4386037 | Sulphonic acids of tolyl ether sulphones | — | 1983-05-31 |
| 4350493 | Carrier composition for disperse dyes | — | 1982-09-21 |
| 4345073 | 7,7'-Diamino derivatives of 2,2'-spirodibenzopyranes | Andreas Oberlinner | 1982-08-17 |
| 4335259 | Quaternized polyamines | — | 1982-06-15 |
| 4316027 | 7,7'-Diamino derivatives of 2,2'-spirodibenzopyranes | Andreas Oberlinner | 1982-02-16 |
| 4297296 | Quaternized polyamines | — | 1981-10-27 |
| 4280955 | Sulfo, chloro phenolazoacetoacetylbenzamide dyes | — | 1981-07-28 |
| 4264494 | Chromium complex dyestuffs for natural polyamides and synthetic nylons | Klaus Grychtol | 1981-04-28 |
| 4229172 | Disperse dyeing of polyester with benzalketo derivatives as carriers: benzalacetone, methyl cinnamate etc. | Hans-Georg Karmann, Achim Wiedemann | 1980-10-21 |
| 4220449 | Quaternated polyamine salts | — | 1980-09-02 |
| 4212801 | Unsymmetrical 1:2-chromium complexes containing an azo and an azomethine bond | — | 1980-07-15 |
| 4184843 | Composition for dyeing hair containing disperse dyes and a thickening agent | — | 1980-01-22 |