Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12187623 | Process for producing haematite pigments | Larissa Schaufler, Anna Weber-Czaplik, Christine Kathrein | 2025-01-07 |
| 11634342 | Iron oxide pigments containing Al | Kai BUETJE, Christine Kathrein, Juergen Kischkewitz, Ulrich Meisen, Peter Koehler | 2023-04-25 |
| 7799125 | Yellow iron oxide pigments | Robert Madersdorfer, Ingo Schnellrath, Sergio dal alba Guazzelli | 2010-09-21 |
| 7681814 | Jet mill with integrated dynamic classifier | Claus Krebs | 2010-03-23 |
| 7294191 | Pure-coloured, readily dispersible iron oxide red pigments with high grinding stability | Wilfried Burow, Volker Schneider | 2007-11-13 |
| 7294192 | Heat-stable zinc ferrite colour pigments, process for preparing them and their use | Horst Brunn, Wolfgang Oehlert | 2007-11-13 |
| 7235127 | Reduction- and oxidation-stable iron oxide black pigments having high colour strength for colouring plastics and building materials, their preparation and their use | Herbert Kunstmann, Udo Krauter, Hans-Josef Moringen | 2007-06-26 |