Inventor · disambiguated record
Ronald J. Lenk
Also filed as: LENK RONALD · LENK RONALD J
37 granted patents·13 pending applications·976 citations·filing 1975–2017
98Inventor score
Files withSWITCH BULB CO INC17LENK RONALD J15LUXTECH LLC6FAIRCHILD SEMICONDUCTOR5LORAL SPACE SYSTEMS INC4
Top patents by PatentIndex Score
50 records- 0199US8752984B2Glass LED light bulbsSWITCH BULB CO INC·Filed 2013·Granted Jun 17, 2014·83 cites·40 claims
- 0297US8450927B2Phosphor-containing LED light bulbLENK RONALD J·Filed 2008·Granted May 28, 2013·91 cites·14 claims
- 0395US6222352B1Multiple voltage output buck converter with a single inductorFAIRCHILD SEMICONDUCTOR·Filed 2000·Granted Apr 24, 2001·124 cites·21 claims
- 0494US8198819B23-way LED bulbLENK RONALD J·Filed 2009·Granted Jun 12, 2012·28 cites·8 claims
- 0591US5359280ABilateral power converter for a satellite power systemLORAL SPACE SYSTEMS INC·Filed 1994·Granted Oct 25, 1994·79 cites·14 claims
- 0690US8786169B2Anti-reflective coatings for light bulbsSWITCH BULB CO INC·Filed 2013·Granted Jul 22, 2014·13 cites·10 claims
- 0790US8278837B1Single inductor control of multi-color LED systemsLENK RONALD J·Filed 2009·Granted Oct 2, 2012·16 cites·16 claims
- 0889US5477132AMulti-sectioned power converter having current-sharing controllerLORAL SPACE SYSTEMS INC·Filed 1994·Granted Dec 19, 1995·134 cites·20 claims
- 0988US9769895B2Light emitting diode (LED) warm on dim circuitLUXTECH LLC·Filed 2016·Granted Sep 19, 2017·6 cites·18 claims
- 1087US5594324AStabilized power converter having quantized duty cycleLORAL SPACE SYSTEMS INC·Filed 1995·Granted Jan 14, 1997·123 cites·10 claims
- 1184US8569949B2Method of light dispersion and preferential scattering of certain wavelengths of light-emitting diodes and bulbs constructed therefromLENK RONALD J·Filed 2012·Granted Oct 29, 2013·7 cites·21 claims
- 1284US6538516B2System and method for synchronizing multiple phase-lock loops or other synchronizable oscillators without using a master clock signalFAIRCHILD SEMICONDUCTOR·Filed 2001·Granted Mar 25, 2003·31 cites·19 claims
- 1383US8283877B2Thermal protection circuit for an LED bulbLENK RONALD J·Filed 2011·Granted Oct 9, 2012·8 cites·17 claims
- 1481US6528976B1Fet sensing programmable active droop for power suppliesFAIRCHILD SEMICONDUCTOR·Filed 2000·Granted Mar 4, 2003·45 cites·20 claims
- 1580US8552654B2Single inductor control of multi-color LED systemsSWITCH BULB CO INC·Filed 2012·Granted Oct 8, 2013·4 cites·24 claims
- 1680US8547002B2Heat removal design for LED bulbsLENK RONALD J·Filed 2007·Granted Oct 1, 2013·15 cites·18 claims
- 1779US8193702B2Method of light dispersion and preferential scattering of certain wavelengths of light-emitting diodes and bulbs constructed therefromLENK RONALD J·Filed 2007·Granted Jun 5, 2012·11 cites·24 claims
- 1877US8702257B2Plastic LED bulbLENK RONALD J·Filed 2007·Granted Apr 22, 2014·11 cites·22 claims
- 1976US8704442B2Method of light dispersion and preferential scattering of certain wavelengths of light for light-emitting diodes and bulbs constructed therefromSWITCH BULB CO INC·Filed 2013·Granted Apr 22, 2014·3 cites·21 claims
- 2075US5233287ACurrent limiting bilateral converter having a ground referenced current sensorLORAL SPACE SYSTEMS INC·Filed 1992·Granted Aug 3, 1993·58 cites·11 claims
- 2173US8754594B2Thermal protection circuit for an LED bulbSWITCH BULB CO INC·Filed 2012·Granted Jun 17, 2014·3 cites·25 claims
- 2273US8439528B2Glass LED light bulbsLENK RONALD J·Filed 2008·Granted May 14, 2013·6 cites·20 claims
- 2370US8638033B2Phosphor-containing LED light bulbSWITCH BULB CO INC·Filed 2013·Granted Jan 28, 2014·1 cites·20 claims
- 2467US8816594B23-way LED bulbLENK RONALD J·Filed 2012·Granted Aug 26, 2014·1 cites·6 claims
- 2566US5844440ACircuit for inrush and current limitingERICSSON GE MOBILE INC·Filed 1996·Granted Dec 1, 1998·31 cites·20 claims
- 2661US8796922B2Phosphor-containing LED light bulbSWITCH BULB CO INC·Filed 2013·Granted Aug 5, 2014·0 cites·12 claims
- 2760US2014327368A13-way led bulbSWITCH BULB CO INC·Filed 2014·Application pending·0 cites
- 2859US10143052B2Light emitting diode (LED) warm on dim circuitLUXTECH LLC·Filed 2017·Granted Nov 27, 2018·0 cites·20 claims
- 2959US3971372AOxygen-generating apparatus for scuba divingLENK RONALD J·Filed 1975·Granted Jul 27, 1976·17 cites·11 claims
- 3058US8760066B2Constant power LED circuitLENK RONALD J·Filed 2009·Granted Jun 24, 2014·0 cites·17 claims
- 3158US8598794B2White AC LEDLENK RONALD J·Filed 2009·Granted Dec 3, 2013·0 cites·29 claims
- 3258US4894567AActive snubber circuitHONEYWELL INC·Filed 1988·Granted Jan 16, 1990·11 cites·1 claims
- 3358US2014346960A1Constant power led circuitSWITCH BULB CO INC·Filed 2014·Application pending·0 cites
- 3458US2014333193A1Glass led light bulbsSWITCH BULB CO INC·Filed 2014·Application pending·0 cites
- 3557US2014184058A1Method of light dispersion and preferential scattering of certain wavelengths of light for light-emitting diodes and bulbs constructed therefromSWITCH BULB CO INC·Filed 2014·Application pending·0 cites
- 3657US2014117864A1White ac ledSWITCH BULB CO INC·Filed 2013·Application pending·0 cites
- 3756US9030118B2Single inductor control of multi-color LED systemsSWITCH BULB CO INC·Filed 2013·Granted May 12, 2015·0 cites·16 claims
- 3856US8853921B2Heat removal design for LED bulbsSWITCH BULB CO INC·Filed 2013·Granted Oct 7, 2014·0 cites·20 claims
- 3956US2014218930A1Plastic led bulbSWITCH BULB CO INC·Filed 2014·Application pending·0 cites
- 4055US8471445B2Anti-reflective coatings for light bulbsLENK RONALD J·Filed 2009·Granted Jun 25, 2013·0 cites·39 claims
- 4155US2015102724A1Thermal protection circuit for an led bulbSWITCH BULB CO INC·Filed 2014·Application pending·0 cites
- 4254US2011204777A1Settable light bulbsSWITCH BULB CO INC·Filed 2009·Application pending·0 cites
- 4349US9107273B2End-of-life bulb circuitryLENK RONALD J·Filed 2009·Granted Aug 11, 2015·0 cites·7 claims
- 4445US2016249424A1Multiple input led driverLUXTECH LLC·Filed 2014·Application pending·0 cites
- 4544US2013229120A1Solid State Lighting System, Apparatus and Method with Flicker RemovalLUXERA INC·Filed 2013·Application pending·0 cites
- 4643US2016029445A1Universal input led driverLUXTECH LLC·Filed 2014·Application pending·0 cites
- 4741US6531851B1Linear regulator circuit and methodFAIRCHILD SEMICONDUCTOR·Filed 2001·Granted Mar 11, 2003·3 cites·20 claims
- 4837US2016088704A1Low flicker alternating current (ac) led driverLUXTECH LLC·Filed 2015·Application pending·0 cites
- 4936US6104170AMethod and circuit for preventing oscillations in a battery chargerFAIRCHILD SEMICONDUCTOR·Filed 1999·Granted Aug 15, 2000·13 cites·19 claims
- 5032US2015296584A1High utilization led driverLUXTECH LLC·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →