Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6794504 | Chlorinated copper phthalocyanine pigments | Ingo Klopp, Josef Hetzenegger | 2004-09-21 |
| 5944887 | Transformation of crude halogenated copper phthalocyanine pigments into a useful pigmentary state | Andrea Schutze, Frank Scherhag | 1999-08-31 |
| 5728888 | Preparation of hydroxylated benzophenones | Alexander Aumuller, Gunter Brill | 1998-03-17 |