| 7309558 |
Use of salt-like structured silicas as charge control agents |
Eduard Michel, Hans-Tobias Macholdt |
2007-12-18 |
| 6168895 |
Pigment for electrophotographic toners and developers |
Hans Joachim Metz, Hans-Tobias Macholdt |
2001-01-02 |
| 6159649 |
Electrophotographic, resin-containing, electret, or inkjet compositions containing magenta azo pigment and use thereof |
Hans-Tobias Macholdt, Dieter Baumgart |
2000-12-12 |
| 6083653 |
Cyclooligosaccharide-boron complex |
Hans-Tobias Macholdt |
2000-07-04 |
| 6028178 |
Pigment for electrophotographic toners and developers |
Hans Joachim Metz, Hans-Tobias Macholdt |
2000-02-22 |
| 5800602 |
Use of inclusion compounds of cyclic polysaccharides as charge control agents |
Hans-Tobias Macholdt |
1998-09-01 |
| 5693867 |
Process for isolating tetraphenylborates |
Hermann Fuchs, Hans-Tobias Macholdt, Jorg Gitzel, Wilfried Theiss |
1997-12-02 |
| 5500323 |
Charge control with cyclic polysulfonyldially ammonium salts |
Hans-Tobias Macholdt, Wilfried Theiss |
1996-03-19 |
| 5475119 |
Diallylammonium compounds, processes for their preparation and their use |
Hans-Tobias Macholdt |
1995-12-12 |
