Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8124672 | Solid pigment preparations containing water-soluble anionic surface-active additives that comprise carboxylate groups | Hansulrich Reisacher, Stephan Hueffer, Matthias Klueglein | 2012-02-28 |
| 7847073 | Method for producing a liquid formulation of salts of sulphonic-acid azo dyes | Gunter-Rudolf Schroeder, Juergen Decker, Helmut Reichelt, Armin Diefenbacher, Hartwig Voss | 2010-12-07 |
| 7713311 | Liquid direct dye formulations | Karl-Heinz Etzbach, Helmut Reichelt | 2010-05-11 |
| 7511170 | Process for liquid/solid reaction | Thomas Bogenstätter, Dirk Franke, Manfred Munzinger | 2009-03-31 |
| 7384473 | Solid pigment preparations containing anionic and non-ionic surface-active additives | Hansulrich Reisacher, Andreas Stohr, Juan Antonio Gonzalez Gomez | 2008-06-10 |
| 7331998 | Liquid formulations of direct dyes | Juergen Decker, Gero Nordmann, Gunter-Rudolf Schroeder, Helmut Reichelt, Christoph Bomba | 2008-02-19 |
| 7198667 | Solid pigment preparations containing pigment derivatives and surface-active additives | Juan Antonio Gonzalez Gomez, Uwe Mauthe, Hansulrich Reisacher, Andreas Stohr | 2007-04-03 |
| 7160336 | Liquid formulations of direct dyes | Gero Nordmann, Helmut Reichelt, Gunter-Rudolf Schroeder | 2007-01-09 |
| 7074953 | Production of ammonium salts of aromatic carboxylic acids | Thomas Bogenstätter, Dirk Franke | 2006-07-11 |
| 6965047 | Method for producing ethers, esters or acid anhydrides | Thomas Bogenstätter, Dirk Franke | 2005-11-15 |
| 6794504 | Chlorinated copper phthalocyanine pigments | Josef Hetzenegger, Peter Bottcher | 2004-09-21 |
| 5932723 | Phase-directed preparation of metal-free phthalocyanine | Andrea Schutze, Frank Scherhag, Anette Hartmann | 1999-08-03 |
| 5569758 | Preparation of metal-free phthalocyanines | Peter B ottcher, Ulrich Frick, Otto Schiller | 1996-10-29 |