Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5443630 | Inkjet single-phase reactive printing | Andreas von der Eltz, Andreas Schrell | 1995-08-22 |
| 4948917 | Process for the preparation of beta-chloroethylsulfonylaryl isocyanates | — | 1990-08-14 |
| 4906738 | Water-soluble phenyl- or naphthyl-azo-carboxypyrazolone compounds, containing a fiber-reactive group with a chloratriazinyl moiety and a group of the vinylsulfone series in the pyrazolone coupling component, suitable as dyestuffs | Folker Kohlhaas, Fritz Meininger | 1990-03-06 |
| 4855411 | Water-soluble, monoazo dyes containing a ureido group and two sulfonyl fiber-reactive groups | Glenn A. Thompson, Anthony J. Corso | 1989-08-08 |
| 4760134 | Process for the preparation of the copper complex disazo compounds from disazo compounds containing an O'-alkoxyaniline group by coppering dimethylation at a pH at about 3-6 | Anthony J. Corso, Fritz Meininger | 1988-07-26 |
| 4334076 | Process for the preparation of sulfuric acid semiester ethylsulfonyl compounds of aminophenols, aminobenzanilides or phenylpyrazolones by esterification with sulfuric acid and/or sulfur trioxide in a kneader | Ernst Hoyer, Fritz Meininger | 1982-06-08 |
| 4315865 | Process for the production of sulfuric acid semiester compounds by sulfation in a machine employing kneading action | Ernst Hoyer, Dieter Wagner | 1982-02-16 |
| 4252529 | Copper, cobalt or chromium complex monoazo compounds, processes for their manufacture, their use as dyestuffs and fiber materials dyed with these dyestuffs | — | 1981-02-24 |
| 4191703 | Process for the manufacture of sulfuric acid semi-ester compounds | Ernst Hoyer | 1980-03-04 |