Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7682408 | Disperse azo dyestuffs | Andreas Endres, Hartwig Jordan, Anthony Lawrence, Nigel Hall | 2010-03-23 |
| 6706761 | Dyed compositions containing insecticides | Mike-Dirk Bublitz, Dietmar Kisters | 2004-03-16 |
| 6627742 | Hydroxypyridonemethide azo dyes | — | 2003-09-30 |
| 6191265 | Thermomigrationfast azo dyes | — | 2001-02-20 |
| 5955615 | Pyridone-methide azo dyestuffs | — | 1999-09-21 |
| 5808015 | Pyridone-methide azo dyestuffs with improved dyeing and printing properties for hydrophobic synethic fiber materials | — | 1998-09-15 |
| 5750761 | Cyanation of double bond systems | Claudia Muller | 1998-05-12 |
| 5644039 | Mixtures of blue disperse azo dyestuffs | Heinz Jordan | 1997-07-01 |
| 5194598 | Azo dyestuffs in which the coupling component contains an N,N-bis(alkoxy carbonylalkyl) substituent | — | 1993-03-16 |
| 5028701 | Monazo compounds containing a 1-phenyl-2-pyrazoline coupling component | Manfred Hoppe | 1991-07-02 |
| 4988752 | Colored thermoplastic resin composition | Michael Kressner, Georg Pape | 1991-01-29 |
| 4888432 | Process for preparing 2-amino-thiophenes and azo dyestuffs prepared therefrom | — | 1989-12-19 |
| 4808723 | Process for the preparation of benzothiazoles | — | 1989-02-28 |
| 4776886 | Halftone gravure printing inks containing an azo dyestuff | Manfred Lorenz, Artur Haus | 1988-10-11 |
| 4582898 | Azo dyestuffs from cyano-amino-benzisothiazoles | — | 1986-04-15 |
| 4524124 | Color photographic recording material containing a thiazole azo dye releaser for cyan dyes | Peter Bergthaller, Rudolf Stolzenburg, Paul Marx | 1985-06-18 |
| 4479899 | Red dyeing 2,6-dicyano-2'-sulfonamido-4'-amino-azo-benzenes | — | 1984-10-30 |
| 4452609 | Dyeing red with 2,6-dicyano-2'-sulfonamido-4'-amino-azo-benzenes | — | 1984-06-05 |
| 4424156 | Halo-substituted amino-and substituted-sulphonamido-containing azo dyestuffs | Klaus Leverenz | 1984-01-03 |
| 4348319 | Process for the preparation of cyano-azo dyestuffs | — | 1982-09-07 |
| 4293566 | Pesticidally active 1-arylamino-2,4-dinitronaphthalenes | Alfons Hartmann, Erich Klauke, Ingeborg Hammann, Peter Roessler, Wilhelm Brandes | 1981-10-06 |
| 4279813 | Aqueous process for the preparation of aromatic phosphorus compounds | Otto Schallner | 1981-07-21 |
| 4269770 | Process for the preparation of cyanoazo dyestuffs | — | 1981-05-26 |
| 4259237 | Azo dyestuffs containing phenolic coupling group | — | 1981-03-31 |
| 4183949 | Pesticidally active 1-arylamino-2,4-dinitronaphthalenes | Alfons Hartmann, Erich Klauke, Ingeborg Hammann, Peter Roessler, Wilhelm Brandes | 1980-01-15 |