Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6242052 | Triboelectric chargeable coating powder | Christoph-Stephan Hilger, Rolf Boysen, Helmut Riestenpatt, Ulrike Schlosser, Udo Mayer +2 more | 2001-06-05 |
| 5891227 | Aqueous dye preparations | Dietrich Hoffmann, Ulrike Schlosser, Walter Kurtz, Karin H. Beck, Doug R. Campbell +2 more | 1999-04-06 |
| 5814139 | Ballpoint pen pastes with phthalocyanine pigments | Karin H. Beck, Helmut Bellaire, Walter Kurtz | 1998-09-29 |
| 5512264 | Finely divided blue molybdenum oxide | Jorg Adel | 1996-04-30 |
| 5496674 | Particles suitable as carriers for electrophotography | Joerg Adel, Norbert Mronga | 1996-03-05 |
| 5039587 | Oxide-coated carriers and preparation and use thereof | Werner Ostertag, Detlef Schulze-Hagenest, Franz-Ulrich Schmitt | 1991-08-13 |
| 4925762 | Carrier for reprography and production of this carrier | Werner Ostertag, Franz-Ulrich Schmitt, Detlef Schulze-Hagenest | 1990-05-15 |
| 4912006 | Electrostatic toner | Walter Breitschaft, Udo Mayer, Guenther Seybold, Horst Bruder, Rainer Dyllick-Brenzinger | 1990-03-27 |
| 4803143 | Colored single-component toners and their preparation | Werner Ostertag, Franz-Ulrich Schmitt, Detlef Schulze-Hagenest | 1989-02-07 |