Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7399354 | Method for the production of pigment granules | Hans Joachim Metz, Andreas Stohr | 2008-07-15 |
| 7384999 | Powdery pigment preparations for dyeing films | Robert Balent, Dietmar Beck | 2008-06-10 |
| 7318860 | Green pigment preparations | Joachim Weber, Olaf Schupp | 2008-01-15 |
| 6485558 | Process for the preparation of pigment granules | Hans Joachim Metz | 2002-11-26 |