Issued Patents All Time
Showing 25 most recent of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6231963 | Magnetic recording media | Helmut Jakusch, Volker Koch, Manfred Ohlinger, Albert Kohl, Werner Lenz +7 more | 2001-05-15 |
| 6025456 | Polyurethanes | Thomas Wunsch, Ria Kress, Werner Loch, Albert Kohl, Norbert Schneider +1 more | 2000-02-15 |
| 5968658 | Magnetic recording media | Ria Kress, Albert Kohl, Werner Lenz, Michael Hitzfeld | 1999-10-19 |
| 5922469 | Materials suitable as crosslinkable binder components | Thomas Wunsch, Gregor Brodt, Ria Kress, Norbert Schneider, Albert Kohl +1 more | 1999-07-13 |
| 5756637 | Polymeric materials suitable as dispersing resins | Gregor Brodt, Josef Schelble, Franz Weingart, Albert Kohl, Ria Kress +1 more | 1998-05-26 |
| 5556918 | Polymeric materials suitable as dispersing resins | Gregor Brodt, Alfred Lindner, Hermann Graf, Michael Bobrich, Ria Kress +3 more | 1996-09-17 |
| 5552229 | Magnetic recording medium containing magnetic material dispersed in a polyurethaneurea-polyurethane binder | Gregor Brodt, Attila Vass, Werner Loch, Werner Lenz, Norbert Schneider | 1996-09-03 |
| 5543226 | Magnetic recording media | Michael Bobrich, Hermann Roller, Rudolf Suettinger, Ria Kress, Norbert Schneider +6 more | 1996-08-06 |
| 5523151 | Magnetic recording media | Norbert Schneider, Ursula Klein, Werner Lenz, Werner Balz, Albert Kohl +1 more | 1996-06-04 |
| 5473042 | Materials suitable as crosslinkable binder components | Gregor Brodt, Thomas Wunsch, Albert Kohl | 1995-12-05 |
| 5470650 | Magnetic recording media | Norbert Schneider, Hermann Roller, Werner Balz, Werner Lenz, Albert Kohl | 1995-11-28 |
| 5217810 | Magnetic recording medium having a magnetic layer containing chromium dioxide particles and linolenic acid | Rudolf Suettinger, Michael Bobrich, Hermann Dikow, Hermann Roller, Werner Lenz +3 more | 1993-06-08 |
| 5169721 | Magnetic recording media comprising a polyurethane binder resin containing perfluoro groups | Michael Bobrich, Albert Kohl, Rudolf Suettinger, Uwe Keppeler, Werner Lenz | 1992-12-08 |
| 5130202 | Magnetic recording medium containing an isocyanate-free branched thermoplastic polyurethane binder resin with urea groups at the chain ends | Uwe Keppeler, Michael Bobrich, Guenter Heil, Hermann Roller, Werner Lenz +1 more | 1992-07-14 |
| 5120608 | Magnetic recording media comprising a polyurethane binder resin containing perfluoro groups | Michael Bobrich, Albert Kohl, Rudolf Suettinger, Uwe Keppeler, Werner Lenz +3 more | 1992-06-09 |
| 5082737 | Magnetic recording media having a branched thermoplastic polyurethane binder containing a polysiloxane component in the main chain | Michael Bobrich, Hermann Roller, Uwe Keppeler, Rudolf Suettinger, Werner Loch +2 more | 1992-01-21 |
| 5082689 | Production of magnetic recording media | Ludwig Kreitner, Werner Grau, Hans Reichert, Friedrich Sommermann, Norbert Schneider +1 more | 1992-01-21 |
| 5075179 | Magnetic recording media | Rudolf Suettinger, Michael Bobrich, Hermann Dikow, Hermann Roller, Werner Lenz +3 more | 1991-12-24 |
| 5064721 | Magnetic recording media | Albert Kohl, Hermann Roller, Werner Lenz, Ludwig Kreitner, Helmut Kopke +2 more | 1991-11-12 |
| 4895764 | Magnetic recording media | Albert Kohl, Michael Bobrich, Hermann Roller, Peter Richter, Werner Lenz +2 more | 1990-01-23 |
| 4673591 | Production of layer-type magnetic recording media | Guenter Heil, Werner Lenz, Werner Balz, Albert Kohl, Gunnar Schornick | 1987-06-16 |
| 4671969 | Production of layer-type magnetic recording media | Werner Balz, Werner Lenz, Albert Kohl, Guenter Heil | 1987-06-09 |
| 4668586 | Magnetic recording media | Albert Kohl, Milena Melzer, Norbert Schneider, Eberhard Koester, Werner Balz +2 more | 1987-05-26 |
| 4666781 | Magnetic recording media | Guenter Heil, Jenoe Kovacs, Werner Balz, Werner Lenz | 1987-05-19 |
| 4656093 | Magnetic recording media | Albert Kohl, Hermann Roller, Werner Balz, Eerhard Koester, Friedrich Sommermann | 1987-04-07 |