Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4560745 | Preparation of dyes which contain sulfonic acid groups and have a low electrolyte content | Volkmar Weberndoerfer, Manfred Eisert, Rudolf Bermes | 1985-12-24 |
| 4466867 | Production of blue iron hexacyanoferrate-III pigments | Wolfgang Habermann, Peter Hammes, Joachim Felger, Karl-Ludwig Hock, Helmut Knittel +3 more | 1984-08-21 |
| 4444667 | Flocculant for sludges | Hans Burkert, Karl-Heinz Beyer, Michael Kroener, Hans Mueller | 1984-04-24 |