Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7318860 | Green pigment preparations | Heinfred Ohleier, Joachim Weber | 2008-01-15 |
| 7262284 | Method for producing disazo pigments | Felix Grimm, Manfred Opravil, Joachim Weber | 2007-08-28 |
| 6835242 | Conditioning of organic pigments | Uwe Nickel, Klaus Kund, Erwin Dietz, Joachim Weber | 2004-12-28 |
| 6562121 | Conditioning of organic pigments | Uwe Nickel, Klaus Kund, Erwin Dietz, Joachim Weber | 2003-05-13 |
| 6504045 | Crystal polymorphs of a yellow disazo colorant, and their preparation | Ruediger Jung, Hans Joachim Metz, Joachim Weber, Martin Schmidt, Andreas Wacker | 2003-01-07 |