Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4897548 | Apparatus for the multiple analysis of gases | Peter Dome, Heinz Wagner | 1990-01-30 |
| 4288662 | Circuit arrangement for telephone exchange systems, especially subscriber extension station installations, with additional data traffic, for example with teleprinter equipment | Franz Fahrenschon, Hans Thinschmidt | 1981-09-08 |