Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |