Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6812019 | Process for the recombinant production of holo-citrate lyase | Michael Bott, Karin Schneider | 2004-11-02 |
| 4563519 | Anthraquinone azopyrazalone colorants | Heinrich Kowarsch | 1986-01-07 |
| 4530725 | Preparation of thermally stable lead chromate pigments | Werner Ostertag, Henning Wienand, Egon Liedek, Helmut Knittel, Gunter Etzrodt | 1985-07-23 |
| 4412949 | Pigments comprising cyanomethylquinazolones coupled to diazo compounds prepared from 1-aminoanthroquinones | Wolfgang Lotsch | 1983-11-01 |
| 4229343 | Azo dyes from an oxadiazolyl-substituted aniline | Helmut Junge, Walter Kurtz, Hans Scherer | 1980-10-21 |
| 4226634 | Process for preparing pigment compositions | Helmut Knittel, August Seitz, Dietrich Wolff | 1980-10-07 |
| 4222788 | Mixed pigment and process of preparing the same | Egon Liedek, Wolfgang Ruff, Gerhard Berger, Peter REITER | 1980-09-16 |
| 4206113 | Azo dyes having an oxdiazolyl-1,2,4 group | Walter Kurtz, Volker Radtke, Werner Juenemann | 1980-06-03 |