Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9982137 | Stabilization of C.I. pigment yellow 139 | Philippe Bugnon, Karin Karrer | 2018-05-29 |
| 8075683 | Isometric isoindoline yellow pigment | Rudiger Hainz, Didier Schroeder | 2011-12-13 |
| 5482547 | Silane-coated organic pigments | Philippe Bugnon | 1996-01-09 |