Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683560 | Cathode assembly | Dietmar Marquardt | 1997-11-04 |
| 5616226 | Cathode assembly | Hans Kunz, Andreas Sauer, Manfred Schuhmacher, Dietmar Marquardt | 1997-04-01 |
| 5591529 | Optical filter having multi-layer coating | Christoph Braatz, Anton Zmelty | 1997-01-07 |