Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5064721 | Magnetic recording media | August Lehner, Albert Kohl, Hermann Roller, Werner Lenz, Ludwig Kreitner +2 more | 1991-11-12 |
| 4668586 | Magnetic recording media | Albert Kohl, Milena Melzer, August Lehner, Norbert Schneider, Eberhard Koester +2 more | 1987-05-26 |