Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7297200 | Water-soluble yellow azo dyes | Andreas Wuzik, Josef Geisenberger | 2007-11-20 |
| 7285592 | Pigments dispersions based on water and acrylate | Andreas Harz, Hans-Tobias Macholdt, Michael Mueller | 2007-10-23 |
| 7066993 | Colorant composition | Andreas Wuzik, Josef Geisenberger | 2006-06-27 |
| 7060124 | Dye combination | Andreas Wuzik, Josef Geisenberger | 2006-06-13 |
| 7008475 | Water-based colorant preparations | Rudolf Randler, Ulrike Rohr, Josef Geisenberger, Ruediger Baur, Hans-Tobias Macholdt | 2006-03-07 |
| 6596067 | Colorant mixture | Josef Geisenberger, Andreas Wuzik | 2003-07-22 |
| 6464768 | Water-soluble stilbene dyes, their preparation and use | Wolfgang Bauer, Josef Geisenberger, Reinhard Pedrazzi | 2002-10-15 |
| 6432185 | Red acid dyes for injet printing and paper dyeing | Wolfgang Bauer, Josef Geisenberger, Reinhard Pedrazzi | 2002-08-13 |
| 6406527 | Water-soluble red acid dyes, their preparation and use | Wolfgang Bauer, Josef Geisenberger, Reinhard Pedrazzi | 2002-06-18 |
| 6406528 | Use of improved cyan pigments in inkjet inks | Hans-Tobias Macholdt, Ruediger Baur, Eduard Michel, Josef Geisenberger, Andreas Harz | 2002-06-18 |
| 6391507 | Cyan pigments in electrophotographic toners and developers | Hans-Tobias Macholdt, Ruediger Baur, Eduard Michel, Josef Geisenberger, Andreas Harz | 2002-05-21 |