Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693867 | Process for isolating tetraphenylborates | Rudiger Baur, Hans-Tobias Macholdt, Jorg Gitzel, Wilfried Theiss | 1997-12-02 |
| 5600003 | Process for isolating tetraphenylborates | R udiger Baur, Hans-Tobias Macholdt, J org Gitzel, Wilfried Theisse | 1997-02-04 |
| 5347038 | Process of the preparation of 2,5-di-phenylamino-terephthalic acid and its dialkyl esters in a high purity | Otto Arndt, Walter Gilb | 1994-09-13 |
| 5208365 | Process for the preparation of 2,5-di(phenylamino)-terephthalic acid and its dialkyl esters in high purity | Walter Gilb, Otto Arndt | 1993-05-04 |
| 5132431 | Process for the continuous preparation of imidoperoxycarboxylic acids | Hanspeter Gethoffer, Walter Gilb | 1992-07-21 |
| 4992589 | Substituted phenyl hydroxyethyl sulfones, and process for their preparation | Theodor Papenfuhs, Werner Brodt, Folker Kohlhaas | 1991-02-12 |
| 4785098 | Water-soluble triphendioxazine compounds | Hartmut Springer, Gunther Schwaiger | 1988-11-15 |
| 4652634 | Water-soluble monoazo compounds containing a N-(sulfoalkyl)-aniline coupling component and a fiber-reactive group of the vinylsulfonyl series in the phenyl or benzothiazole diazo component, suitable as fiber-reactive dyestuffs | Peter Mischke | 1987-03-24 |
| 4576755 | Water-soluble fibre-reactive phthalocyanine compounds | Peter Mischke | 1986-03-18 |
| 4534908 | Water-soluble disazo compounds and new bis-(aminophenoxy)-ethane compounds having fiber-reactive groups as the tetrazo components, and use of the disazo compounds as dyestuffs | Klaus Filzinger | 1985-08-13 |
| 4430259 | Water-soluble disazo compounds suitable as fiber-reactive dyestuffs | Peter Mischke, Fritz Meininger | 1984-02-07 |
| 4394310 | 1-Amino-2-sulfo-(4'-pyrazolonyl-phenyl)-aminoanthraquinone compounds and a process for their preparation | Klaus Filzinger | 1983-07-19 |
| 4372892 | Process for the preparation of 1-aminobenzene-5-.beta.-sulfatoethylsulfone-2,4-disulfonic acid, the 5-vinylsulfone compound and the alkali salts thereof | Gustav Kapaun, Fritz Meininger | 1983-02-08 |
| 4194883 | Water-soluble disazo dyestuffs and process for coloring synthetic polyamide fibres with them | Klaus Filzinger | 1980-03-25 |