Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6723138 | Preparation of diketopyrrolopyrrole pigments | Uwe Nickel, Leonhard Unverdorben, Joachim Weber, Erwin Dietz | 2004-04-20 |
| 6616859 | Preparation of alcoholic solutions of alkali metal alkoxides | Uwe Nickel, Leonhard Unverdorben, Joachim Weber, Erwin Dietz | 2003-09-09 |
| 6566519 | Preparation of diketopyrrolopyrrole pigments | Uwe Nickel, Leonhard Unverdorben, Joachim Weber, Erwin Dietz | 2003-05-20 |