Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7303622 | Lustrous black interference pigments | Nicole Schupp, Ralf Anselmann, Lilia Heider | 2007-12-04 |
| 6719838 | Colored interference pigments | Lilia Heider, Nicole Schupp, Helge Kniess | 2004-04-13 |
| 6302926 | Preparations of monodisperse spherical oxide particles | Ralf Anselmann, Carsten Griessmann, Kurt Marquard | 2001-10-16 |
| 5846310 | Coated spherical SiO.sub.2 particles | Tamio Noguchi, Kazhisa Iwasa, Ralf Anselmann, Martin Knapp | 1998-12-08 |