Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6436182 | Process for producing highly concentrated pigment presscakes | Leonhard Unverdorben, Uwe Nickel, Gunnar Tilch | 2002-08-20 |
| 6406528 | Use of improved cyan pigments in inkjet inks | Hans-Tobias Macholdt, Ruediger Baur, Eduard Michel, Josef Geisenberger, Heidemarie Menzel | 2002-06-18 |
| 6391507 | Cyan pigments in electrophotographic toners and developers | Hans-Tobias Macholdt, Ruediger Baur, Eduard Michel, Josef Geisenberger, Heidemarie Menzel | 2002-05-21 |