Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4675388 | Polymeric azo compounds containing at least four cationic groups | Manfred Greve, Helmut Moser | 1987-06-23 |
| 4665162 | 1:1 and 1:2 metal complexes of sulfo group-free azo compound having on average at least 1.3 basic water-solubilizing groups | Paul Doswald, Helmut Moser, Horst Schmid | 1987-05-12 |
| 4587292 | Sulfo group-free azo compounds having on average at least 1.3 basic water-solubilizing groups in metal-free, 1:1 metal complex or 1:2 metal complex form | Paul Doswald, Helmut Moser, Horst Schmid | 1986-05-06 |
| 4550158 | Metal-free disazo compounds containing at least two basic water-solubilizing groups and having a 1-phenylpyrazole middle component radical and a 6-hydroxyprid-2-one terminal coupling component | Paul Doswald, Helmut Moser, Horst Schmid | 1985-10-29 |
| 4483796 | Sulfo group-free disazo and polyazo compounds containing two 1-phenylpyrazol-5-one coupling component radicals and at least two basic or cationic groups | Paul Doswald, Helmut Moser, Horst Schmid | 1984-11-20 |
| 4468347 | Sulfo group-free disazo and polyazo compounds containing at least two basic or cationic group and which are in metal-free or 2:1 metal complex form | Paul Doswald, Helmut Moser, Horst Schmid | 1984-08-28 |