Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835909 | Surface treatment of disk-shaped nickel-plated aluminum substrates | Juergen Richter, Werner Grau, Gerd Maurer, Friedrich Domas, Rainer Bender +2 more | 1989-06-06 |
| 4755395 | Preparation of acicular cobalt-containing ferrimagnetic iron oxides | Werner Steck, Rainer Feser, Peter Rudolf, Guenter Vaeth, Helmut Jakusch +1 more | 1988-07-05 |
| 4448761 | Preparation of acicular, ferrimagnetic iron oxides | Wilhelm Sarnecki, Jenoe Kovacs, Peter Rudolf, Guenter Vaeth | 1984-05-15 |
| 4439231 | Preparation of acicular ferromagnetic metal particles consisting essentially of iron | Werner Steck, Peter Rudolf, Wilhelm Sarnecki, Jenoe Kovacs, Helmut Jakusch | 1984-03-27 |
| 4420330 | Stabilization of pyrophoric ferromagnetic acicular metal particles consisting essentially of iron | Helmut Jakusch, Eberhard Koester, Peter Rudolf, Werner Senkpiel, Werner Steck | 1983-12-13 |
| 4378240 | Preparation of acicular ferromagnetic metal particles consisting essentially of iron | Hansjoerg Siegle, Hans H. Reich, Horst Autzen, Werner Steck, Eckhard Hetzel +1 more | 1983-03-29 |
| 4344791 | Manufacture of acicular ferromagnetic iron particles | Werner Steck, Wilhelm Sarnecki, Laszlo Marosi, Manfred Ohlinger | 1982-08-17 |
| 4272563 | Manufacture of magnetic recording media having a wear-resistant surface | Werner Steck, Manfred Steuerwald, Gerd Wunsch, Paul Deigner | 1981-06-09 |
| 4221776 | Manufacture of acicular ferrimagnetic iron oxides | Horst Autzen, Helmut Jakusch, Eberhard Koester, Peter Rudolf, Wilhelm Sarnecki +1 more | 1980-09-09 |
| 4213959 | Manufacture of acicular, ferrimagnetic iron oxide | Rudolf Brodt, Helmut Jakusch, Eberhard Koester, Manfred Ohlinger, Wilhelm Sarnecki +1 more | 1980-07-22 |
| 4188302 | Manufacture of acicular cobalt-modified magnetic iron oxide | Hans-Juergen Becker, Christof Jaeckh, Eberhard Koester, Manfred Ohlinger, Werner Steck | 1980-02-12 |