| 6683800 |
Resonant switched mode power supply system |
Christoph Loef, Christian Hattrup, Thomas Scheel, Olaf Maertens |
2004-01-27 |
| 6380679 |
Short-arc discharge lamp with a starting antenna |
Dieter Leers, Klaus Lohn, Johannes Martinus De Regt, Gunther Hans Derra, Hubertus C. M. Van Den Nieuwenhuizen |
2002-04-30 |
| 6304154 |
Circuit arrangement including a self-oscillator circuit |
Dieter Leers |
2001-10-16 |
| 6184634 |
Circuit arrangement for igniting and operating a lamp having piezoelectric transformer |
Dieter Leers |
2001-02-06 |
| 6157129 |
Discharge lamp |
Bernd Rausenberger, Dieter Leers, Horst Dannert, Klaus Lohn |
2000-12-05 |
| 6111765 |
Discharge lamp operating circuit using piezoelectric transformer and protective device |
Hans G. Ganser, Dieter Leers, Klaus Lohn, Pieter Postma |
2000-08-29 |
| 6104141 |
Inventer-ballast using a piezoelectric transformer |
Hans G. Ganser, Dieter Leers, Klaus Lohn, Pieter Postma |
2000-08-15 |
