Inventor · disambiguated record
Gunther Hans Derra
Also filed as: DERRA GUENTHER · DERRA GUENTHER H · DERRA GUENTHER HANS · DERRA GUNTHER H
12 granted patents·1 pending application·267 citations·filing 1992–2006
91Inventor score
Top patents by PatentIndex Score
13 records- 0192US5608294AHigh pressure lamp operating circuit with suppression of lamp flickerPHILIPS CORP·Filed 1995·Granted Mar 4, 1997·117 cites·23 claims
- 0280US6586892B2Method of and device for operating a gas discharge lampKONINKL PHILIPS ELECTRONICS NV·Filed 2001·Granted Jul 1, 2003·27 cites·19 claims
- 0377US6232725B1Circuit arrangement for operating a high-pressure discharge lampPHILIPS CORP·Filed 1999·Granted May 15, 2001·45 cites·7 claims
- 0462US7732789B2Optical system having a cleaning arrangementKONINKL PHILIPS ELECTRONICS NV·Filed 2005·Granted Jun 8, 2010·1 cites·17 claims
- 0562US6380679B1Short-arc discharge lamp with a starting antennaPHILIPS CORP·Filed 1999·Granted Apr 30, 2002·17 cites·17 claims
- 0662US6239556B1Long life discharge lamp operating circuit with reduced lamp flickerPHILIPS CORP·Filed 1999·Granted May 29, 2001·23 cites·18 claims
- 0755US5262701ACircuit arrangement for operating a high pressure sodium lampPHILIPS CORP·Filed 1992·Granted Nov 16, 1993·16 cites·4 claims
- 0849US7809112B2Method and device for generating EUV radiation and/or soft X-ray radiationKONINKL PHILIPS ELECTRONICS NV·Filed 2004·Granted Oct 5, 2010·2 cites·30 claims
- 0949US7518300B2Method and device for the generation of a plasma through electric discharge in a discharge spaceKONINKL PHILIPS ELECTRONICS NV·Filed 2004·Granted Apr 14, 2009·5 cites·19 claims
- 1048US5997143AOptical projection devices including a lens plate integratorPHILIPS CORP·Filed 1997·Granted Dec 7, 1999·14 cites·10 claims
- 1141US2008315786A1Method and Circuit Arrangement For the Operation of a Discharge LampKONINKL PHILIPS ELECTRONICS NV·Filed 2005·Application pending·0 cites
- 1235US8873021B2Debris mitigation system with improved gas distributionDERRA GUNTHER HANS·Filed 2006·Granted Oct 28, 2014·0 cites·4 claims
- 1330US5689156ACircuit arrangement for detecting the amount of deposited electrode material on the wall of a lamp vesselPHILIPS CORP·Filed 1996·Granted Nov 18, 1997·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →