Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4689050 | Mixtures of blue disperse azo dyestuffs for dyeing synthetic fibers | Manfred Hahnke, Reinhard Kuhn, Reinhard Hahnle | 1987-08-25 |
| 4540816 | Single-vessel process for preparing ring-substituted n-alkylanilines | Karl Sommer | 1985-09-10 |
| 4460375 | Dyeing-stable monoazo dyestuff, a process for its preparation, and its use | Karl Sommer, Manfred Schneider | 1984-07-17 |
| 4422854 | Transfer printing support, process for the manufacture thereof, with blue azo dye:di-cyano-nitro-phenyl-azo aniline | Reinhard Hahnle, Manfred Schneider, Claus Schuster | 1983-12-27 |
| 4401692 | Transfer-printing support | Manfred Schneider, Claus Schuster | 1983-08-30 |
| 4381262 | Water-insoluble azo dyestuffs, their manufacture and their use | Ulrich Buhler, Dieter Cornelius, Rudolf Lowenfeld, Uwe Kosubek, Reinhard Hahnle | 1983-04-26 |
| 4319880 | Monoazo dyestuff being stable under dyeing conditions; its manufacture and its use | Konrad Opitz | 1982-03-16 |
| 4311836 | Water-insoluble azlactone dyestuffs, processes for their preparation and their use for dyeing or printing synthetic fiber materials | — | 1982-01-19 |
| 4293306 | Process for the dyeing and printing of hydrophobic synthetic organic fiber materials with water-insoluble azo dyestuffs | Ernst Hoyer, Willi Steckelberg, Walter Deucker | 1981-10-06 |