| 7514871 |
High-pressure gas-discharge lamp with improved temperature resistance |
Robert Scholl, Rainer Hilbig, Achim Gerhard Rolf Körber, Johannes Baier, Klaus Gawron |
2009-04-07 |
| 7291980 |
High-pressure mercury vapor discharge lamp with a space |
Hanns E. Fischer, Bernd Engelbrecht |
2007-11-06 |
| 6552499 |
High-pressure gas discharge lamp, and method of manufacturing same |
Guenther Hans Derra, Hanns E. Fischer, Holger Moench |
2003-04-22 |
| 6380679 |
Short-arc discharge lamp with a starting antenna |
Klaus Lohn, Martin Ossmann, Johannes Martinus De Regt, Gunther Hans Derra, Hubertus C. M. Van Den Nieuwenhuizen |
2002-04-30 |
| 6304154 |
Circuit arrangement including a self-oscillator circuit |
Martin Ossmann |
2001-10-16 |
| 6184634 |
Circuit arrangement for igniting and operating a lamp having piezoelectric transformer |
Martin Ossmann |
2001-02-06 |
| 6157129 |
Discharge lamp |
Bernd Rausenberger, Horst Dannert, Klaus Lohn, Martin Ossmann |
2000-12-05 |
| 6111765 |
Discharge lamp operating circuit using piezoelectric transformer and protective device |
Hans G. Ganser, Klaus Lohn, Martin Ossmann, Pieter Postma |
2000-08-29 |
| 6104141 |
Inventer-ballast using a piezoelectric transformer |
Hans G. Ganser, Klaus Lohn, Martin Ossmann, Pieter Postma |
2000-08-15 |
| 5962954 |
Piezo-electric transformer |
Klaus Lohn |
1999-10-05 |
| 5384195 |
Antifriction body having an antifriction layer |
Peter Klaus Bachmann, Detlef Uwe Wiechert |
1995-01-24 |
| 4802733 |
Fluorine-doped optical fibre and method of manufacturing such fibre |
Peter Klaus Bachmann, Peter E. E. Geittner, Howard J. C. Wilson |
1989-02-07 |