Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4507457 | Production of magnetic recording media | Albert Kohl, Norbert Schneider, Gregor Ley, Werner Balz, Milena Melzer | 1985-03-26 |
| 4497723 | Preparation of acicular, ferrimagnetic iron oxides | Manfred Ohlinger, Guenter Vaeth, Peter Rudolf, Wilhelm Sarnecki, Eberhard Koester +1 more | 1985-02-05 |
| 4495246 | Acicular ferromagnetic chromium dioxide particles | Werner Steck, Jenoe Kovacs, Norbert Mueller | 1985-01-22 |
| 4439231 | Preparation of acicular ferromagnetic metal particles consisting essentially of iron | Werner Steck, Peter Rudolf, Wilhelm Sarnecki, Werner Loeser, Jenoe Kovacs | 1984-03-27 |
| 4420330 | Stabilization of pyrophoric ferromagnetic acicular metal particles consisting essentially of iron | Werner Loeser, Eberhard Koester, Peter Rudolf, Werner Senkpiel, Werner Steck | 1983-12-13 |
| 4401643 | Preparation of finely divided barium ferrite of high coercivity | Hartmut Hibst | 1983-08-30 |
| 4296149 | Manufacture of acicular cobalt-containing magnetic iron oxide | Peter Rudolf, Werner Steck, Guenter Vaeth, Christof Jaeckh | 1981-10-20 |
| 4271234 | Iron oxide magnetic pigments for the production of magnetic coatings | Eduard Schonafinger, Paul Deigner, Manfred Ohlinger, Jurgen Amort, Heinz Nestler +2 more | 1981-06-02 |
| 4221776 | Manufacture of acicular ferrimagnetic iron oxides | Horst Autzen, Eberhard Koester, Werner Loeser, Peter Rudolf, Wilhelm Sarnecki +1 more | 1980-09-09 |
| 4213959 | Manufacture of acicular, ferrimagnetic iron oxide | Rudolf Brodt, Eberhard Koester, Werner Loeser, Manfred Ohlinger, Wilhelm Sarnecki +1 more | 1980-07-22 |