Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4921542 | Finely divided iron oxide black pigments, a process for their preparation and their use | Jakob Rademachers, Karl-Werner Ganter, Gunter Linde | 1990-05-01 |
| 4492600 | Corrosion-inhibiting paints and lacquers | Horst Brunn, Franz Hund, Peter Kresse, Gerd von Szadkowski | 1985-01-08 |
| 4470844 | Agglomerated ferromagnetic iron particles | Jakob Rademachers, Rolf Naumann, Hans-Peter Biermann, Gunter Buxbaum | 1984-09-11 |
| 4443264 | Halogen-free zinc ferrite yellow pigments containing alumina and phosphorus oxide and production | Franz Hund, Willi Hennings, Horst Brunn, Peter Kresse | 1984-04-17 |
| 4378252 | Magnetic separation to improve purity of iron oxide pigments | Peter Kiemle, Franz Hund, Ingo Pflugmacher | 1983-03-29 |
| 4235862 | Production of low sulphur chromium (III) oxide | Heinrich Heine, Bruno Raederscheidt, Gerhard Trenczek | 1980-11-25 |