Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5003051 | Process for the preparation of metallizable monoazo dyes in the presence of ketones | Ulrich Schlesinger, Alois Puntener | 1991-03-26 |
| 4990599 | 2,7-diphenylazo-1-amino-8-hydroxynaphthalene disazo dyes containing two fiber-reactive groups | Dieter Mausezahl | 1991-02-05 |
| 4917705 | Process for dyeing or printing of fibre material from natural or synthetic polyamides with reactive disazo dyes | Dieter Mausezahl | 1990-04-17 |
| 4904767 | Asymmetric 1:2-chrome complexes of benzene-azo-naphthalene/naphthalene-azo-naphthalene acid dyes for leather | Fabio Beffa, Alois Puntener | 1990-02-27 |
| 4693727 | Process for dyeing synthetic polyamide materials with fibre-reactive anthraquinone dyes | James B. Bowles, Marshall S. White, Alois Puentener, Jean-Marie Adam | 1987-09-15 |
| 4655970 | Process for the manufacture of anthraquinone compounds | Martin Priester | 1987-04-07 |
| 4652269 | Process for the continuous trichromatic dyeing of synthetic polyamide materials: including a blue anthraquinone reactive dye | James B. Bowles, Marshall S. White, Alois Puntener, Jean-Marie Adam | 1987-03-24 |
| 4626497 | Process for the production of colored photographic polymer images | Martin Roth, Beat Muller, Joseph Berger | 1986-12-02 |
| 4462805 | Mixture of cationic compounds for dyeing and printing textiles, leather and paper | Willy Stingelin | 1984-07-31 |
| 4439204 | Dye salts | Willy Stingelin | 1984-03-27 |
| 4421519 | Mixtures of cationic dyes: naphtho-lactam and oxazine dyes for polyacrylonitriles | Rudolf Zink | 1983-12-20 |
| 4393007 | Process for the manufacture of anthraquinone compounds | Martin Priester | 1983-07-12 |
| 4382801 | Process for spin dyeing polymers or copolymers of acrylonitrile with quaternized heterocyclic diazo dye and tetrafluoro-borate anion | — | 1983-05-10 |
| 4380627 | Cationic compounds | Willy Stingelin | 1983-04-19 |
| 4372886 | Process for the production of carbinol bases from indoline compounds | Rudolf Zink | 1983-02-08 |
| 4367334 | Borontetrafluoride salts of basic oxazine dyes | — | 1983-01-04 |
| 4364738 | Crystalline bromide or iodide salts of triazole dyes for polyacrylonitrile | Rudolf Zink | 1982-12-21 |
| 4292037 | Process for dyeing cellulose-containing fibre materials | Pierre Galafassi, Jean-Marie Adam, Hans Scheidegger | 1981-09-29 |
| 4288589 | Cationic dyes | Rudolf Zink | 1981-09-08 |
| 4251656 | Cationic dyes | Rudolf Zink, Stefan Koller | 1981-02-17 |
| 4245990 | Process for producing solutions of salts of water-soluble carboxylic acids of cationic dyes or optical brighteners | Walter Lang | 1981-01-20 |
| 4210757 | Novel naphthoylene-perinones disperse dyestuffs | Siegfried Dengler, Christian Zickendraht, Hansrudolf Schwander | 1980-07-01 |