Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6852135 | Water-soluble fiber-reactive colorants, method for the production thereof, and use their use | Joachim Steckelberg | 2005-02-08 |
| 6060591 | Water-soluble fiber-reactive dyes, processes for their preparation, and their use | Wilfried Hansmann, Stefan Ehrenberg, Wolfram Reddig | 2000-05-09 |
| 6046311 | Water-soluble fiber-reactive dyes, preparation thereof and use thereof | Wilfried Hansmann, Stefan Ehrenberg, Wolfram Reddig | 2000-04-04 |
| 5502174 | Reactive dyestuffs based on a substituted barbituric acid | Stefan Ehrenberg, Aloysius Engel | 1996-03-26 |
| 5498700 | Naphthylazonaphthol dyes which contain a 5-chloro-6-fluoropyrimidin-4-yl reactive group | Wilfried Hansmann | 1996-03-12 |
| 5460631 | Bifunctional reactive dyestuff mixture | Manfred Hoppe, Karl-Josef Herd, Konrad Bootz, Stefan Ehrenberg, Thomas Eizenhofer +4 more | 1995-10-24 |
| 5414131 | Process for preparing [5-amino-2-(2-hydroxyethylamino)-phenyl](2-hydroxyethyl)sulphone | Karl-Josef Herd | 1995-05-09 |
| 5391716 | Monoazo 2-hydroxy-pyridone-containing reactive dyestuffs | Konrad Bootz | 1995-02-21 |
| 5340928 | Reactive dyestuff containing triazinyl and halopyrimidine moieties | Manfred Hoppe, Karl-Josef Herd, Thomas Eizenhofer, Wolfgang Harms, Klaus Kunde +1 more | 1994-08-23 |
| 5278293 | Azo dyestuffs and intermediate products for their preparation | Karl-Josef Herd, Manfred Hoppe, Klaus Kunde, Frank-Michael Stuohr | 1994-01-11 |
| 5274083 | Polyfunctional fibre-reactive dyestuffs | Karl-Josef Herd, Frank-Michael Stohr | 1993-12-28 |
| 5270454 | Reactive dyestuffs | Manfred Hoppe, Karl-Josef Herd, Frank-Michael Stohr, Karl H. Schundehutte | 1993-12-14 |
| 5256773 | Copper complexes of 4-fluoro-5-chloropyrimidin-6-yl containing ractive mondazo dyes | Klaus Kunde, Karl H. Schundehutte, Frank-Michael Stohr | 1993-10-26 |
| 5241056 | Reactive monoazo dyestuffs which contain alkylbenzene and chlorofluoro pyrimidine substituents | Manfred Hoppe, Karl-Josef Herd | 1993-08-31 |
| 5220057 | Formazan dyestuffs | Thomas Eizenhofer, Karl-Josef Herd, Rolf Brockmann, Frank-Michael Stohr, Karl H. Schundehutte | 1993-06-15 |
| 5176718 | Reactive dyestuff preparations containing pyridine derivatives | Martin Michna, Manfred Hoppe, Karl-Josef Herd, Frank-Michael Stohr | 1993-01-05 |
| 5166325 | Polyazo reactive dyestuffs containing the 4-Fluoro-5-Chloropyrimidin-6-yl fiber reactive radical and the use thereof to dye or print hydroxyl-or amino-containing material | Karl-Josef Herd, Karl H. Schundehutte, Frank-Michael Stohr | 1992-11-24 |
| 5132410 | Azo reactive dyestuffs containing a fluorotriazinyl group | Karl-Josef Herd, Manfred Hoppe, Frank-Michael Stohr | 1992-07-21 |
| 5097021 | Reactive dyestuffs where the reactive radical carries a cyclic nitrogen heterocycle | Frank-Michael Stohr, Karl-Josef Herd | 1992-03-17 |
| 5095102 | 6-substituted sulphonyl-8-sulpho-2-naphthyl monoazo reactive dyestuffs | Karl-Josef Herd, Manfred Hoppe, Rolf Brockmann, Frank-Michael Stohr | 1992-03-10 |
| 5093481 | Fiber reactive azo dyestuffs | Karl-Josef Herd, Frank-Michael Stohr | 1992-03-03 |
| 5091515 | Process for the preparation of substituted 2,4-diamino-6-fluoro-S-triazines | Karl-Josef Herd, Hans-Georg Frosch, Wolfgang Mullers, Frank-Michael Stohr | 1992-02-25 |
| 5051507 | Process for the preparation of 4,5,6-trichloropyrimidine | Karl H. Schundehutte, Gunther Beck, Kurt Findeisen | 1991-09-24 |
| 4990615 | Triphendioxazine and triphendithiazine direct dyestuffs | Wolfgang Harms, Peter Wild | 1991-02-05 |
| 4988803 | Fiber reactive azo dyes containing a morpholinyl-, piperazinyl- or piperidnyl- substituted flurotriazinyl radical | Frank-Michael Stohr, Karl-Josef Herd | 1991-01-29 |