Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6620931 | Process for preparing new crystal polymorphs of a methyl-substituted benzimidazolone-dioxazine pigment | Martin Schmidt, Peter Kempter | 2003-09-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6620931 | Process for preparing new crystal polymorphs of a methyl-substituted benzimidazolone-dioxazine pigment | Martin Schmidt, Peter Kempter | 2003-09-16 |