Inventor · disambiguated record
John G. Konopka
Also filed as: KONOPKA JOHN · KONOPKA JOHN A · KONOPKA JOHN G
60 granted patents·2 pending applications·2,931 citations·filing 1986–2012
99Inventor score
Files withMOTOROLA INC20OSRAM SYLVANIA INC16ZENITH ELECTRONICS CORP14MOTOROLA LIGHTING INC7KONOPKA JOHN A1
Top patents by PatentIndex Score
62 records- 0199US4856078ADC fan speed controlZENITH ELECTRONICS CORP·Filed 1988·Granted Aug 8, 1989·1.3k cites·3 claims
- 0292US7042161B1Ballast with arc protection circuitOSRAM SYLVANIA INC·Filed 2005·Granted May 9, 2006·46 cites·24 claims
- 0390US5770925AElectronic ballast with inverter protection and relamping circuitsMOTOROLA INC·Filed 1997·Granted Jun 23, 1998·101 cites·27 claims
- 0489US6501225B1Ballast with efficient filament preheating and lamp fault protectionOSRAM SYLVANIA INC·Filed 2001·Granted Dec 31, 2002·47 cites·20 claims
- 0588US7288901B1Ballast with arc protection circuitOSRAM SYLVANIA INC·Filed 2006·Granted Oct 30, 2007·17 cites·19 claims
- 0688US4906938APower circuit locaterZENITH ELECTRONICS CORP·Filed 1988·Granted Mar 6, 1990·53 cites·4 claims
- 0787US5434477ACircuit for powering a fluorescent lamp having a transistor common to both inverter and the boost converter and method for operating such a circuitMOTOROLA LIGHTING INC·Filed 1993·Granted Jul 18, 1995·77 cites·12 claims
- 0886US7218063B2Two light level ballastOSRAM SYLVANIA INC·Filed 2005·Granted May 15, 2007·15 cites·15 claims
- 0986US5998930AElectronic ballast with two-step boost converter and methodMOTOROLA INC·Filed 1996·Granted Dec 7, 1999·75 cites·20 claims
- 1084US6720739B2Ballast with protection circuit for quickly responding to electrical disturbancesOSRAM SYLVANIA INC·Filed 2001·Granted Apr 13, 2004·32 cites·29 claims
- 1184US4937731APower supply with automatic input voltage doublingZENITH ELECTRONICS CORP·Filed 1989·Granted Jun 26, 1990·46 cites·11 claims
- 1283US6727662B2Dimming control system for electronic ballastsOSRAM SYLVANIA INC·Filed 2002·Granted Apr 27, 2004·32 cites·12 claims
- 1383US5834924AIn-rush current reduction circuit for boost converters and electronic ballastsMOTOROLA INC·Filed 1997·Granted Nov 10, 1998·67 cites·17 claims
- 1483US5144195ACircuit for driving at least one gas discharge lampMOTOROLA INC·Filed 1991·Granted Sep 1, 1992·49 cites·17 claims
- 1583US4920302AFluorescent lamp power supplyZENITH ELECTRONICS CORP·Filed 1988·Granted Apr 24, 1990·39 cites·8 claims
- 1682US5148087ACircuit for driving a gas discharge lamp loadMOTOROLA INC·Filed 1991·Granted Sep 15, 1992·47 cites·16 claims
- 1780US5475285ALamp circuit limited to a booster in which the power output decreases with increasing frequencyMOTOROLA INC·Filed 1994·Granted Dec 12, 1995·42 cites·15 claims
- 1879US5691691APower-line communication system using pulse transmission on the AC lineMOTOROLA INC·Filed 1997·Granted Nov 25, 1997·119 cites·20 claims
- 1977US7468586B2Ballast with arc protection circuitOSRAM SYLVANIA INC·Filed 2007·Granted Dec 23, 2008·6 cites·7 claims
- 2077US4709320ALow voltage shutdown circuitZENITH ELECTRONICS CORP·Filed 1986·Granted Nov 24, 1987·35 cites·1 claims
- 2176US6552498B1Method and circuit for controlling current in a high pressure discharge lampOSRAM SYLVANIA INC·Filed 2001·Granted Apr 22, 2003·24 cites·28 claims
- 2276US5191263ABallast circuit utilizing a boost to heat lamp filaments and to strike the lampsMOTOROLA LIGHTING INC·Filed 1992·Granted Mar 2, 1993·34 cites·12 claims
- 2375US5767631APower supply and electronic ballast with low-cost inverter bootstrap power sourceMOTOROLA INC·Filed 1996·Granted Jun 16, 1998·50 cites·20 claims
- 2469US5399944ABallast circuit for driving gas dischargeMOTOROLA LIGHTING INC·Filed 1993·Granted Mar 21, 1995·29 cites·18 claims
- 2569US4783729AAutomatic voltage doubler switchZENITH ELECTRONICS CORP·Filed 1987·Granted Nov 8, 1988·25 cites·5 claims
- 2668US6194845B1Ballasts with tapped inductor arrangements for igniting and powering high intensity discharge lampsOSRAM SYLVANIA INC·Filed 1999·Granted Feb 27, 2001·30 cites·30 claims
- 2767US6545432B2Ballast with fast-responding lamp-out detection circuitOSRAM SYLVANIA INC·Filed 2001·Granted Apr 8, 2003·22 cites·20 claims
- 2867US4862013AConstant current source and battery chargerZENITH ELECTRONICS CORP·Filed 1988·Granted Aug 29, 1989·37 cites·3 claims
- 2966US5994847AElectronic ballast with lamp current valley-fill power factor correctionMOTOROLA INC·Filed 1997·Granted Nov 30, 1999·34 cites·10 claims
- 3065US7084579B2Two light level ballastOSRAM SYLVANIA INC·Filed 2004·Granted Aug 1, 2006·11 cites·26 claims
- 3164US6534931B1Dimming control system for electronic ballastsOSRAM SYLVANIA INC·Filed 2001·Granted Mar 18, 2003·10 cites·24 claims
- 3263US6100652ABallast with starting circuit for high-intensity discharge lampsOSRAM SYLVANIA INC·Filed 1998·Granted Aug 8, 2000·23 cites·12 claims
- 3363US5872430ASingle switch electronic ballast with low in-rush currentMOTOROLA INC·Filed 1996·Granted Feb 16, 1999·24 cites·20 claims
- 3463US5574336AFlourescent lamp circuit employing a reset transistor coupled to a start-up circuit that in turn controls a control circuitMOTOROLA INC·Filed 1995·Granted Nov 12, 1996·25 cites·9 claims
- 3561US8917084B2High voltage sensing mechanism with integrated on-off switchKONOPKA JOHN G·Filed 2012·Granted Dec 23, 2014·2 cites·16 claims
- 3661US6856100B1Ballast with inverter startup circuitOSROM SYLVANIA INC·Filed 2003·Granted Feb 15, 2005·10 cites·20 claims
- 3760US7157896B2Device for locating and identifying circuit breakersSPERRY A W INSTR INC·Filed 2004·Granted Jan 2, 2007·8 cites·29 claims
- 3860US5528111ABallast circuit for powering gas discharge lampMOTOROLA INC·Filed 1994·Granted Jun 18, 1996·21 cites·7 claims
- 3960US5194781AControl circuitMOTOROLA LIGHTING INC·Filed 1991·Granted Mar 16, 1993·19 cites·15 claims
- 4059US5453665ASingle transistor electronic ballastMOTOROLA INC·Filed 1994·Granted Sep 26, 1995·18 cites·9 claims
- 4158US4885522AConstant current source and battery chargerZENITH ELECTRONICS CORP·Filed 1988·Granted Dec 5, 1989·26 cites·3 claims
- 4257US6657400B2Ballast with protection circuit for preventing inverter startup during an output ground-fault conditionOSRAM SYLVANIA INC·Filed 2002·Granted Dec 2, 2003·14 cites·26 claims
- 4357US5969481APower supply and electronic ballast with high efficiency voltage converterMOTOROLA INC·Filed 1997·Granted Oct 19, 1999·18 cites·21 claims
- 4457US5694006ASingle switch ballast with integrated power factor correctionMOTOROLA INC·Filed 1996·Granted Dec 2, 1997·22 cites·19 claims
- 4556US6144539AArrangement for protecting low-voltage control circuitry from externally applied high voltages, and dimming ballast employing such an arrangementOSRAM SYLVANIA INC·Filed 1999·Granted Nov 7, 2000·23 cites·23 claims
- 4654US4829259AConstant current source and battery chargerZENITH ELECTRONICS CORP·Filed 1987·Granted May 9, 1989·23 cites·5 claims
- 4753US6768274B2Ballast with lamp-to-earth-ground fault protection circuitOSRAM SYLVANIA INC·Filed 2002·Granted Jul 27, 2004·5 cites·12 claims
- 4853US5373218AToggle brightening circuit for powering gas discharge lamps and method for operating gas discharge lampsMOTOROLA LIGHTING INC·Filed 1993·Granted Dec 13, 1994·18 cites·15 claims
- 4953US4805083ALow cost automatic voltage doubler switchZENITH ELECTRONICS CORP·Filed 1988·Granted Feb 14, 1989·14 cites·8 claims
- 5053US4764857APower supply start-up circuit with high frequency transformerZENITH ELECTRONICS CORP·Filed 1987·Granted Aug 16, 1988·14 cites·6 claims
Showing the top 50 of 62 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →