Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5601647 | Production of a magnetic recording medium | Albert Pertzsch, Michael Breitsameter, Siegfried Rieger | 1997-02-11 |
| 5466542 | A magnetic recording medium | Albert Pertzsch, Josef Schelble | 1995-11-14 |
| 5422137 | Production of a magnetic recording medium | Gerhard Huebler, Wolf-Dieter Schroeer, Josef Schelble | 1995-06-06 |