Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7309389 | Preparation of azo colorants in microreactors and their use in electrophotographic toners and developers, powder coatings, ink jet inks and electronic medias | Ruediger Baur, Hans-Tobias Macholdt, Leonhard Unverdorben, Christian Wille | 2007-12-18 |
| 7135266 | Preparation of azo colorants in microreactors and their use in electrophotographic toners and developers, powder coatings, ink jet inks and electronic medias | Ruediger Baur, Hans-Tobias Macholdt, Leonhard Unverdorben, Christian Wille | 2006-11-14 |
| 6835242 | Conditioning of organic pigments | Klaus Kund, Erwin Dietz, Joachim Weber, Olaf Schupp | 2004-12-28 |
| 6723138 | Preparation of diketopyrrolopyrrole pigments | Leonhard Unverdorben, Joachim Weber, Erwin Dietz, Juergen Patzlaff | 2004-04-20 |
| 6616859 | Preparation of alcoholic solutions of alkali metal alkoxides | Leonhard Unverdorben, Joachim Weber, Erwin Dietz, Juergen Patzlaff | 2003-09-09 |
| 6566519 | Preparation of diketopyrrolopyrrole pigments | Leonhard Unverdorben, Joachim Weber, Erwin Dietz, Juergen Patzlaff | 2003-05-20 |
| 6562121 | Conditioning of organic pigments | Klaus Kund, Erwin Dietz, Joachim Weber, Olaf Schupp | 2003-05-13 |
| 6469147 | Preparation of azo colorants in microreactors | Rudiger Jung, Klaus Saitmacher, Leonhard Unverdorben | 2002-10-22 |
| 6437104 | Preparation of disazo condensation pigments in microreactors | Klaus Kund, Frank Alfter | 2002-08-20 |
| 6436182 | Process for producing highly concentrated pigment presscakes | Leonhard Unverdorben, Andreas Harz, Gunnar Tilch | 2002-08-20 |
| 6150477 | Process for the preparation of hydrophilic hydrogels of high swelling capacity | Fritz Engelhardt, Manfred Mayer | 2000-11-21 |
| 5280128 | Process for the preparation of benzothioxanthene dyestuffs | Wolfgang Bauer, Eberhard Grimm, Manfred Schrod, Herbert Wille | 1994-01-18 |