Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9611390 | Pigments with an iron silicate-containing coating | Johann Dietz, Ute Honeit | 2017-04-04 |
| 8337611 | Effect pigments | Gerhard Pfaff, Johann Dietz, Sabine Schoen | 2012-12-25 |
| 7691196 | Effect pigments | Gerhard Pfaff, Johann Dietz, Sabine Schoen | 2010-04-06 |
| 7255736 | Effect pigments based on thin SiO2 flakes | Gerhard Pfaff, Johann Dietz, Cornelia Foerderer | 2007-08-14 |
| 7169223 | Effect pigments having a strong color flop | Gerhard Pfaff, Cornelia Foerderer, Johann Dietz | 2007-01-30 |
| 7156913 | Intensely colored red effect pigments | Gerhard Pfaff, Cornelia Foerderer, Johann Dietz | 2007-01-02 |