Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5134641 | Plasma X-ray tube, in particular for X-ray preionizing of gas lasers, and an electron gun using the plasma X-ray tube | Dirk Friede, Rudolf Baumgartl, Hans-Jurgen Cirkel | 1992-07-28 |
| 5050178 | Multichannel pseudo-spark switch and excitation circuit for gas lasers having the switch | Willi Bette, Dirk Friede, Hans-Jurgen Cirkel | 1991-09-17 |