Issued Patents All Time
Showing 25 most recent of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9469058 | Seat structure and method for the production thereof | Axel Koever | 2016-10-18 |
| 5229502 | Preparation of 1:2 chromium complexes one sulfo substituted and one sulfonamido or the like substituted azo dyes | Alois Puntener | 1993-07-20 |
| 5207799 | Process for dyeing wool and blends thereof with other fibres using reactive dyes and colorless fiber-reactive dyeing assistant | Klaus Hannemann, Josef Koller | 1993-05-04 |
| 5001227 | Fibre-reactive 1:1 chromium complex azo or azomethine dyes having a bidentate chelating group and a monofunctional neutral ligand | Hans U. Schutz, Ulrich Schlesinger | 1991-03-19 |
| 4990598 | Fibre-reaction 1:1 chromium complex azo or azomethine dyes having a bidentate chelating group and a monofunctional neutral ligand | Hans U. Schutz, Ulrich Schlesinger | 1991-02-05 |
| 4874849 | Asymmetric 1:2-chromium complex dyes containing two azo dyes, one containing an acetoacetanilide coupling component | Fabic Beffa, Ulrich Schlesinger, Alois Puntener | 1989-10-17 |
| 4874848 | Asymmetrical polyazo chromium complex dyes comprising resorcinol as a coupling component | Fabio Beffa | 1989-10-17 |
| 4818248 | Process for dyeing natural or synthetic polyamide fibre materials with 1:1 metal complex dyes in presence of alkali metal fluordsilicate or amindnlum silicate | Walter Mosimann | 1989-04-04 |
| 4818246 | Process for improving the light-fastness of leather dyeings | Alois Puntener, Josef Koller | 1989-04-04 |
| 4813972 | Fiber-reactive chromium complexes and their preparation and use for polyamide, leather and cotton | Hans U. Schutz, Ulrich Schlesinger | 1989-03-21 |
| 4723001 | Fibre-reactive chromium complexes and their preparation and use | Hans U. Schutz, Ulrich Schlesinger | 1988-02-02 |
| 4704133 | Process for the photochemical stabilization of synthetic polyamide fibre materials with water-soluble copper complex dye | Gerhard Reinert, Hans U. Schutz | 1987-11-03 |
| 4681596 | Process for dyeing natural or synthetic polyamide fibre materials with 1:1 metal complex dyes or mixtures of dyes with fluoride, fluorosilicate or fluoroborate | Walter Mosimann | 1987-07-21 |
| 4680385 | Metal dye complexes containing an azo or azomethine dye and a colorless ligand with the C.dbd.N--N.dbd.C group | — | 1987-07-14 |
| 4678851 | Metal dye complexes containing an azo or azomethine dye and a colorless ligand with the C.dbd.N--N.dbd.C group | Hans U. Schutz, Ulrich Schlesinger | 1987-07-07 |
| 4655783 | Process for photochemical stabilization of non-dyed and dyed polyamide fibre material and mixtures thereof | Gerhard Reinert, Helmut Huber-Emden | 1987-04-07 |
| 4655785 | Process for photochemical stabilization of polyamide and polyurethane fiber materials with metal complex compounds | Gerhard Reinert, Helmut Huber-Emden | 1987-04-07 |
| 4623358 | Process for dyeing natural or synthetic polyamide fibre materials with 1:1 metal complex dyes and fluoride, fluorosilicate or fluoroborate | Walter Mosimann | 1986-11-18 |
| 4617382 | 8-hydroxyquinoline sulfonic acid-azo chromium complexes | Fabio Beffa, Arthur Buhler | 1986-10-14 |
| 4582896 | 1:2-metal complex dyes containing one atom of chromium or cobalt and two azo dyes each formed by coupling two diazo compounds to resorcinol | — | 1986-04-15 |
| 4502865 | Fibre-reactive chromium complex dyes, process for their manufacture and use thereof to dye cellulose or wool | Fabio Beffa, Hans-Ulrich Sch/u/ tz | 1985-03-05 |
| 4502860 | Bis-1:2-chromium complexes of disazo dyes, and their preparation and use | — | 1985-03-05 |
| 4432898 | Sulfo-substituted fibre-reactive 1:2-chromium complex azo dyes | Fabio Beffa, Hans U. Schutz | 1984-02-21 |
| 4431583 | Phenyl- or naphthyl-azo-(8-hydroxyquinoline) 1:2-cobalt complex dyes for leather | — | 1984-02-14 |
| 4364864 | 1:2 Cobalt and chromium complex unsymmetrical azo dyes | Fabio Beffa, Hans U. Schutz | 1982-12-21 |