Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7387670 | Pigment preparations based on phthalocyanine pigments | Joachim Weber, Magali Meder, Hans-Tobias Macholdt | 2008-06-17 |
| 7262284 | Method for producing disazo pigments | Olaf Schupp, Felix Grimm, Joachim Weber | 2007-08-28 |
| 6413309 | Pigment preparations comprising two or more perylene compounds | Joachim Weber, Manfred Urban, Erwin Dietz | 2002-07-02 |