Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9868827 | Process for the production of a composite polymer material with increased filler content | Holger Müller, Jürgen Leonhardt, Jürgen Spehn | 2018-01-16 |
| 9637609 | Process for the production of a composite polymer material with increased filler content | Holger Müller, Jürgen Leonhardt, Jürgen Spehn | 2017-05-02 |
| 7923189 | Hydrophobic salts of layered metal hydroxides | — | 2011-04-12 |
| 7621967 | Blue dye with particularly high purity and positive triboelectric control effect | Ruediger Baur, Hans-Tobias Macholdt, Norbert Kohl | 2009-11-24 |
| 7611812 | Use of salts of layered double hydroxides as charge control agents | Ruediger Baur, Hans-Tobias Macholdt | 2009-11-03 |
| 7569318 | Use of salts of layered double hydoxides | Ruediger Baur, Hans-Tobias Macholdt | 2009-08-04 |
| 7309558 | Use of salt-like structured silicas as charge control agents | Rudiger Baur, Hans-Tobias Macholdt | 2007-12-18 |
| 6406528 | Use of improved cyan pigments in inkjet inks | Hans-Tobias Macholdt, Ruediger Baur, Josef Geisenberger, Heidemarie Menzel, Andreas Harz | 2002-06-18 |
| 6391507 | Cyan pigments in electrophotographic toners and developers | Hans-Tobias Macholdt, Ruediger Baur, Josef Geisenberger, Heidemarie Menzel, Andreas Harz | 2002-05-21 |
| 6207335 | Use of metal carboxylates and sulfonates as charge control agents | Ruediger Baur, Hans-Tobias Macholdt | 2001-03-27 |
| 6030738 | Use of inter-polyelectrolyte complexes as charge control agents | Ruediger Baur, Hans-Tobias Macholdt | 2000-02-29 |