Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5496633 | Transfer film with magnetic layer | Manfred Ohlinger, Jenoe Kovacs, Dieter Schwarz | 1996-03-05 |
| 5264292 | Transfer film having magnetic layers | Jenoe Kovacs, Manfred Ohlinger | 1993-11-23 |
| 4438462 | Document identification employing exchange-anisotropic magnetic material | Eberhard Koester, Joachim Hack | 1984-03-20 |
| 4396886 | Document authentication by means of exchange-anisotropic magnetic material | Eberhard Koester, Joachim Hack | 1983-08-02 |
| 4272563 | Manufacture of magnetic recording media having a wear-resistant surface | Werner Steck, Werner Loeser, Gerd Wunsch, Paul Deigner | 1981-06-09 |