Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6275316 | Monitoring and/or controlling device and process | Friedrich-Christian Tischer, Ernst Kremers, Roland Himmler | 2001-08-14 |
| 5844706 | Fibre-optic communications-transmission method and intermediate repeater for use in the method | Ulrich Kohn, Friedrich-Christian Tischer | 1998-12-01 |