Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6762299 | Mixed crystals of benzimidazolonedioxazine compounds | Martin Schmidt, Peter Kempter, Carsten Plueg | 2004-07-13 |
| 6620931 | Process for preparing new crystal polymorphs of a methyl-substituted benzimidazolone-dioxazine pigment | Martin Schmidt, Peter Kempter | 2003-09-16 |
| 6482817 | Hybrid pigments | Bansi Lal Kaul, Bruno Piastra, Carsten Plug, Pascal Steffanut | 2002-11-19 |