Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7837785 | Process for the preparation of pigment granules and the use thereof | Holger Friedrich, Udo Holtmann | 2010-11-23 |
| 6565973 | Composite particles | Daniel Gordon Duff, Werner Hoheisel | 2003-05-20 |
| 6503315 | Process for producing iron oxide pigments | Norbert Etzenbach | 2003-01-07 |
| 6132505 | Inorganic pigment pellets for coloring plastics, lacquers and building materials and a process for the production thereof | Gunter Linde, Manfred Eitel | 2000-10-17 |
| 5961710 | Inorganic pigment granules process for their production and their use | Gunter Linde, Manfred Eitel, Olaf Schmidt-Park | 1999-10-05 |
| 5917279 | Intermediate layer in electroluminescent arrangements containing finely divided inorganic particles | Andreas Elschner, Rolf Wehrmann | 1999-06-29 |
| 5840111 | Nanodisperse titanium dioxide, process for the production thereof and use thereof | Gerhard Wiederhoft, Peter-Joachim Barenthien, Michael Bödiger, Heinrich Alberts | 1998-11-24 |
| 5837635 | Process for producing mixed oxide powders from deactivated denox catalysts | Jurgen Kischkewitz, Gunter Linde, Hans-Joachim Schittenhelm, Gunter Lailach | 1998-11-17 |
| 5804639 | Pigment preparations having a high solids content | Gert Schopwinkel, Gunter Wieghaus, Richard Bathke, Torsten Groth, Winfried Joentgen | 1998-09-08 |
| 5723404 | Process for the production of mixed oxide powders for catalysts for the removal of nitrogen oxides | Jurgen Kischkewitz, Rolf Braun, Udo Holtmann, Peter-Joachim Barenthien | 1998-03-03 |
| 5527519 | Finely divided, highly pure neutral zinc oxide powder, a process for its preparation and its use | Michael Miksits, Christoph Tiburtius, Jurgen Kischkewitz, Albrecht Warth, Franz Herzig +1 more | 1996-06-18 |
| 5468463 | Process for the preparation of very pure titanium dioxide | Jurgen Kischkewitz | 1995-11-21 |