Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5851604 | Interference pigments comprising molecules fixed in a cholesteric configuration, and use thereof | Christoph Muller-Rees, Johann Doppelberger, Walter Goeblmeier | 1998-12-22 |
| 5362315 | Pigments whose color depends on the viewing angle, their preparation and use | Christoph Muller-Rees, Robert Maurer, Jürgen Stohrer, Franz-Heinrich Kreuzer, Franz Csellich | 1994-11-08 |