Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6312512 | Quinacridone mixed-crystal pigments of the gamma phase | Manfred Urban, Martin Boehmer, Joachim Weber, Dieter Schnaitmann | 2001-11-06 |
| 5958129 | Pigment formulations and processes for their preparation | Manfred Urban, Dieter Schnaitmann | 1999-09-28 |