Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10280308 | Effect pigments | Johann Dietz, Nicole HAFERKORN, Gerhard Pfaff, Doreen McFarlane | 2019-05-07 |
| 7255736 | Effect pigments based on thin SiO2 flakes | Gerhard Pfaff, Doreen Warthe, Johann Dietz | 2007-08-14 |
| 7169223 | Effect pigments having a strong color flop | Gerhard Pfaff, Doreen Warthe, Johann Dietz | 2007-01-30 |
| 7156913 | Intensely colored red effect pigments | Gerhard Pfaff, Doreen Warthe, Johann Dietz | 2007-01-02 |