Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5389137 | Process for dyeing asphalt | Gunter Linde, Manfred Eitel, Gerald Buchner, Gunther Teichmann | 1995-02-14 |
| 5059250 | Red iron oxide pigments with improved coloring properties | Wilfried Burow, Horst Brunn, Hans Sander | 1991-10-22 |
| 5055136 | Heat-stable iron oxide black pigments, processes for their production and their use | Jurgen Wiese, Gunter Buxbaum | 1991-10-08 |
| 4492600 | Corrosion-inhibiting paints and lacquers | Horst Brunn, Franz Hund, Wolfgang Rambold, Gerd von Szadkowski | 1985-01-08 |
| 4443264 | Halogen-free zinc ferrite yellow pigments containing alumina and phosphorus oxide and production | Franz Hund, Willi Hennings, Horst Brunn, Wolfgang Rambold | 1984-04-17 |
| 4285726 | Active anti-corrosion pigments based on calcium oxide, aluminium oxide and iron oxide | Franz Hund | 1981-08-25 |
| 4211565 | Iron oxide-based anti-corrosion pigments | Franz Hund, Gunter Linde | 1980-07-08 |
| 4185141 | Production of coated structural elements comprising inorganic binders | Milan Krejci | 1980-01-22 |