Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7797763 | Protective helmet, especially bicycle helmet | — | 2010-09-21 |
| 6705719 | Sight piece, in particular for skiing goggles and method for the manufacture thereof | Franz Huber | 2004-03-16 |
| 6405373 | Visor for helmet, particularly a motorcycle helmet | — | 2002-06-18 |
| 5627607 | Spectacles with movable gems | — | 1997-05-06 |
| 5419959 | Magnetic recording medium having an infra-red light transparent balkcoat layer | Hermann Roller, Peter Heilmann, Michael Hitzfeld, Dieter Stockburger, Werner Latzel +4 more | 1995-05-30 |
| 5084319 | Disk-shaped magnetic recording media, their production and information stores containing these recording media | Hartmut Hibst, Arend Werner, Joachim Hack, Heinrich Mannsperger, Michael Hitzfeld +2 more | 1992-01-28 |
| 5082689 | Production of magnetic recording media | Ludwig Kreitner, August Lehner, Hans Reichert, Friedrich Sommermann, Norbert Schneider +1 more | 1992-01-21 |
| D321703 | Sunglasses | — | 1991-11-19 |
| 5050015 | Method and arrangement for reducing wear in a magnetic storage means | Joachim Hack, Werner Sickmueller, Heinrich Mannsperger, Helmut Jakusch | 1991-09-17 |
| 4991952 | Pair of glasses with inclinable temples | — | 1991-02-12 |
| 4891114 | Magnetic recording media | Michael Hitzfeld, Joachim Hack | 1990-01-02 |
| 4842896 | Production of magnetic recording media | Albert Kohl, Jenoe Kovacs, Werner Balz, Wulf Muenzer | 1989-06-27 |
| 4835909 | Surface treatment of disk-shaped nickel-plated aluminum substrates | Juergen Richter, Gerd Maurer, Friedrich Domas, Werner Loeser, Rainer Bender +2 more | 1989-06-06 |
| 4647513 | Magnetic recording media | August Lehner, Albert Kohl, Werner Balz, Friedrich Sommermann, Milan Velic +1 more | 1987-03-03 |
| 4619777 | Preparation of a magnetic dispersion | Milena Melzer, Helmut Jakusch, Eberhard Koster, Werner Loser, Reinhard Polke +3 more | 1986-10-28 |
| 4597990 | Preparation of magnetic recording media | Hermann Roller, Joachim Hack, Uwe Woweries, August Lehner, Peter Nagel +1 more | 1986-07-01 |
| 4568610 | Magnetic recording media | August Lehner, Werner Balz, Milan Velic, Helmut Kopke, Reinhold Baur | 1986-02-04 |
| 4567108 | Magnetic recording media | August Lehner, Helmut Kopke, Hermann Roller, Werner Balz, Eberhard Koester +1 more | 1986-01-28 |
| 4560456 | Magnetic recording media | Guenter Heil, Werner Lenz, Jenoe Kovacs, Werner Balz | 1985-12-24 |
| 4560624 | Magnetic recording media with a dual protective coating of silicon monoxide and chromium | Christine Guttner, Peter Heilmann, Udo Kullmann, Dieter Mayer | 1985-12-24 |
| 4559118 | Magnetic recording media | Guenter Heil, Herbert Spoor, Werner Lenz, Jenoe Kovacs, Werner Balz +1 more | 1985-12-17 |
| 4534999 | Production of magnetic recording media having a backing coating | Hermann Roller, August Lehner, Joachim Hack, Werner Balz, Reinhold Baur | 1985-08-13 |
| 4430362 | Production of magnetic recording media | Milena Melzer, Norbert Schneider, Helmut Kopke, Klaus Schoettle, Eberhard Koester +1 more | 1984-02-07 |
| 4414287 | Magnetic recording medium and its manufacture | Eckhart Kneller, Roland Koenig, Eberhard Koester, Dieter Mayer | 1983-11-08 |
| 4287225 | Process of making a magnetic recording medium | Eckhart Kneller, Roland Koenig, Eberhard Koester, Dieter Mayer | 1981-09-01 |