| 6043369 |
[1,3,4] Triazolo [1,5-A] pyridines |
— |
2000-03-28 |
| 5929245 |
Naphtholactam dyes |
Clemens Grund, Gunther Lamm, Roland Merger, Rudiger Sens |
1999-07-27 |
| 5703238 |
Preparation of pyridine dyes |
Sabine Gruttner-Merten, Peter Saling, Rudiger Sens, Helmut Reichelt |
1997-12-30 |
| 5654122 |
N-aminopyridone dyes |
Karl-Heinz Etzbach, Ruediger Sens, Matthias Wiesenfeldt |
1997-08-05 |
| 5637702 |
Sulfur compounds |
Manfred Patsch |
1997-06-10 |
| 5616710 |
Triazolopyridine dyes |
Rudiger Sens, Helmut Reichelt, Karl-Heinz Etzbach |
1997-04-01 |
| 5612465 |
Phenylazotriazolopyridine dyestuffs |
Ruediger Sens, Karl-Heinz Etzbach, Helmut Reichelt, Clemens Grund |
1997-03-18 |
| 5608041 |
Azo dyestuffs containing a diazo component from the aniline series and coupling component from the triazolopyridine series |
Volker Bach, Helmut Reichelt, Clemens Grund |
1997-03-04 |
| 5580980 |
N-aminopyridone dyes |
Karl-Heinz Etzbach, Ruediger Sens, Matthias Wiesenfeldt |
1996-12-03 |
| 5538939 |
Acylamino-substituted isoxazole or isothiazole derivatives, their preparation and their use |
Peter Muenster, Hartmann Koenig, Matthias Gerber, Karl-Otto Westphalen, Helmut Walter |
1996-07-23 |
| 5491232 |
Sulfur compounds useful for preparation of dyes |
Manfred Patsch |
1996-02-13 |
| 5466812 |
Preparation of N-aminopyridones |
Stefan Beckmann |
1995-11-14 |
| 5352774 |
Dyes containing thiophene radicals |
Guenter Hansen, Karl-Heinz Etzbach, Helmut Reichelt, Hermann Loeffler |
1994-10-04 |
| 5283326 |
Dyes containing thiophene radicals |
Guenter Hansen, Karl-Heinz Etzbach, Helmut Reichelt, Hermann Loeffler |
1994-02-01 |
| 5270456 |
Azo dyes with A2-aminothiophene dye azo component and a coupling component and coupling component of the diphenylamine series |
Erwin Hahn, Guenter Hansen, Karl-Heinz Etzbach, Helmut Reichelt, Sabine Greuttner +1 more |
1993-12-14 |
| 5212309 |
3-aminobenzene-1,2,4,5-tetracarboxylic dihydrazides and composition capable of chemiluminescence, and 3-aminobenzene-1,2,4,5-tetracarboxylic dianhydrides |
Klaus Huemke |
1993-05-18 |
| 5206375 |
Thiophene derivatives |
Karl-Heinz Etzbach, Heinz Eilingsfeld |
1993-04-27 |
| 5147845 |
Triazolopyridine dyes and thermal transfer of methine dyes |
Ruediger Sens, Karl-Heinz Etzbach, Gunther Lamm, Helmut Reichelt, Matthias Wiesenfeldt |
1992-09-15 |
| 5145952 |
Thiopheneazo dyes with a coupling component based on M-phenylenediamine |
Heinz Eilingsfeld, Karl-Heinz Etzbach, Guenter Hansen, Helmut Reichelt |
1992-09-08 |
| 5132412 |
Thiazoleazo dyes having a diazo component from the isothiazole or thiadiazole series |
Guenter Hansen, Gunther Lamm, Helmut Reichelt |
1992-07-21 |
| 5101028 |
(1,2,4)triazolo[2,3-a]pyridines |
Helmut Reichelt |
1992-03-31 |
| 5079365 |
Triazolopyridine dyes and thermal transfer of methine dyes |
Rudiger Sens, Karl-Heinz Etzbach, Gunther Lamm, Helmut Reichelt, Matthias Wiesenfeldt |
1992-01-07 |
| 5062861 |
Novel navy and black disperse dye mixtures including amino-phenyl thiophene azo disperse dye and red, yellow or orange disperse dyes |
Erwin Hahn, Guenter Hansen, Karl-Heinz Etzbach, Helmut Reichelt, Helmut Degen +2 more |
1991-11-05 |
| 5047570 |
Preparation of 2-cyano-3-aminoacrylonitrile derivatives |
— |
1991-09-10 |
| 4994564 |
Azo dyes with a diazo component of the 3-amino thiophene series and a coupling component of the pyridine, pyridone or pyrazole series |
Karl-Heinz Etzbach, Helmut Reichelt, Guenter Hansen, Helmut Hagen, Gunther Lamm |
1991-02-19 |
