Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5496633 | Transfer film with magnetic layer | Manfred Steuerwald, Manfred Ohlinger, Dieter Schwarz | 1996-03-05 |
| 5264292 | Transfer film having magnetic layers | Manfred Ohlinger, Manfred Steuerwald | 1993-11-23 |
| 5209970 | Magnetic recording media | Manfred Ohlinger | 1993-05-11 |
| 5006406 | Magnetic recording media | Milena Melzer, Werner Balz, Werner Lenz, Werner Loch, Helmut Jakusch | 1991-04-09 |
| 4933004 | Preparation of acicular ferromagnetic metal particles of substantially iron | Klaus-Dieter Hoppe, Werner Steck, Rainer Feser, Helmut Jakusch | 1990-06-12 |
| 4842896 | Production of magnetic recording media | Werner Grau, Albert Kohl, Werner Balz, Wulf Muenzer | 1989-06-27 |
| 4775553 | Production of magnetic recording media | Peter Engelhardt, Hermann Roller, Lothar Schwarz, Peter Nagel | 1988-10-04 |
| 4755395 | Preparation of acicular cobalt-containing ferrimagnetic iron oxides | Werner Steck, Rainer Feser, Werner Loeser, Peter Rudolf, Guenter Vaeth +1 more | 1988-07-05 |
| 4729785 | Preparation of acicular ferromagnetic metal particles consisting essentially of iron | Ekkehard Schwab, Werner Steck, Peter Rudolf, Guenter Vaeth, Helmut Jakusch | 1988-03-08 |
| 4666781 | Magnetic recording media | August Lehner, Guenter Heil, Werner Balz, Werner Lenz | 1987-05-19 |
| 4666783 | Magnetic recording media | Guenter Heil, Werner Lenz | 1987-05-19 |
| 4629632 | Production of magnetic recording media | Werner Balz, Hilmar Lechner, Dieter Schaefer, Ingolf Buethe | 1986-12-16 |
| 4581296 | Magnetic recording media | Werner Balz, Wulf Muenzner, Hermann Roller | 1986-04-08 |
| 4560456 | Magnetic recording media | Guenter Heil, Werner Lenz, Werner Grau, Werner Balz | 1985-12-24 |
| 4559118 | Magnetic recording media | Guenter Heil, Herbert Spoor, Werner Lenz, Werner Grau, Werner Balz +1 more | 1985-12-17 |
| 4557813 | Magnetic recording media | Guenter Heil, Werner Lenz | 1985-12-10 |
| 4495246 | Acicular ferromagnetic chromium dioxide particles | Werner Steck, Norbert Mueller, Helmut Jakusch | 1985-01-22 |
| 4457982 | Acicular ferrimagnetic iron oxide and its preparation | Peter Rudolf, Guenter Vaeth, Manfred Ohlinger | 1984-07-03 |
| 4448761 | Preparation of acicular, ferrimagnetic iron oxides | Wilhelm Sarnecki, Werner Loeser, Peter Rudolf, Guenter Vaeth | 1984-05-15 |
| 4439231 | Preparation of acicular ferromagnetic metal particles consisting essentially of iron | Werner Steck, Peter Rudolf, Wilhelm Sarnecki, Werner Loeser, Helmut Jakusch | 1984-03-27 |
| 4413117 | Preparation of polyimide powder | Udo Reiter, Hans-Uwe Schenck | 1983-11-01 |
| 4312798 | Polyurethane coating solutions or dispersions | — | 1982-01-26 |
| 4252842 | Electrical insulation of metallic conductors | Hans Jung, Wilhelm Dussel, Helmut Lehmann | 1981-02-24 |