Inventor · disambiguated record
Dennis L. Stephens
Also filed as: STEPHENS D · STEPHENS DENNIS · STEPHENS DENNIS L
29 granted patents·3 pending applications·816 citations·filing 1976–2015
97Inventor score
Files withMOTOROLA INC14O'GORMAN PATRICK A4TEMIC AUTOMOTIVE NA INC3CONTINENTAL AUTOMOTIVE SYSTEMS2Continental automotive systems inc2
Top patents by PatentIndex Score
32 records- 0197US7075273B2Automotive electrical system configuration using a two bus structureMOTOROLA INC·Filed 2004·Granted Jul 11, 2006·104 cites·35 claims
- 0294US4063307ADirect current power converter with start-up and protection circuitsTELETYPE CORP·Filed 1976·Granted Dec 13, 1977·62 cites·11 claims
- 0388US9509225B2Efficient LLC resonant converter having variable frequency control and fixed frequency phase-shift PWMContinental automotive systems inc·Filed 2014·Granted Nov 29, 2016·11 cites·13 claims
- 0485US5969483AInverter control method for electronic ballastsMOTOROLA INC·Filed 1998·Granted Oct 19, 1999·72 cites·18 claims
- 0585US4665323AElectronically switchable power sourceZENITH ELECTRONICS CORP·Filed 1984·Granted May 12, 1987·46 cites·8 claims
- 0683US7193395B2Systems and method for boosting output of an alternatorMOTOROLA INC·Filed 2006·Granted Mar 20, 2007·13 cites·11 claims
- 0783US5834924AIn-rush current reduction circuit for boost converters and electronic ballastsMOTOROLA INC·Filed 1997·Granted Nov 10, 1998·67 cites·17 claims
- 0882US7005822B1Torque ripple reduction for a voltage mode motor controllerMOTOROLA INC·Filed 2004·Granted Feb 28, 2006·29 cites·19 claims
- 0981US7339327B2Resonant circuit for halogen lightingTEMIC AUTOMOTIVE NA INC·Filed 2005·Granted Mar 4, 2008·8 cites·16 claims
- 1080US7443142B2Active rectification of alternator output without using a position sensorTEMIC AUTOMOTIVE NA INC·Filed 2005·Granted Oct 28, 2008·18 cites·5 claims
- 1179US7271570B2Active rectification of alternator output without using a position sensorTEMIC AUTOMOTIVE NA INC·Filed 2005·Granted Sep 18, 2007·15 cites·6 claims
- 1278US8159083B2Automotive electrical system configurationO'GORMAN PATRICK A·Filed 2010·Granted Apr 17, 2012·5 cites·14 claims
- 1378US5945788AElectronic ballast with inverter control circuitMOTOROLA INC·Filed 1998·Granted Aug 31, 1999·65 cites·31 claims
- 1475US5767631APower supply and electronic ballast with low-cost inverter bootstrap power sourceMOTOROLA INC·Filed 1996·Granted Jun 16, 1998·50 cites·20 claims
- 1571US7701079B2Automotive electrical systemCONTINENTAL AUTOMOTIVE SYSTEMS·Filed 2004·Granted Apr 20, 2010·14 cites·17 claims
- 1670US5689230AEnergy monitoring and control system using reverse transmission on AC lineMOTORAL INC·Filed 1995·Granted Nov 18, 1997·93 cites·14 claims
- 1765US7095214B2Systems and method for boosting output of an alternatorMOTOROLA INC·Filed 2004·Granted Aug 22, 2006·16 cites·10 claims
- 1864US4129816AStepping motor control circuitTELETYPE CORP·Filed 1977·Granted Dec 12, 1978·14 cites·5 claims
- 1961US5457360ADimming circuit for powering gas discharge lampsMOTOROLA INC·Filed 1994·Granted Oct 10, 1995·24 cites·13 claims
- 2058US8624570B2Digitally controlling a power converterO'GORMAN PATRICK A·Filed 2009·Granted Jan 7, 2014·4 cites·18 claims
- 2155US5495404AMulti-resonant inverterMOTOROLA INC·Filed 1994·Granted Feb 27, 1996·15 cites·19 claims
- 2253US8140286B2Position sensing system and methodO'GORMAN PATRICK·Filed 2009·Granted Mar 20, 2012·2 cites·19 claims
- 2352US8569907B2Single transistor alternator field buck/boostO'GORMAN PATRICK A·Filed 2005·Granted Oct 29, 2013·1 cites·16 claims
- 2451US2012261984A1Automotive Electrical System ConfigurationO'GORMAN PATRICK A·Filed 2012·Application pending·0 cites
- 2550US5867017AEnergy control system with remote switchingMOTOROLA INC·Filed 1997·Granted Feb 2, 1999·26 cites·18 claims
- 2650US5729098APower supply and electronic ballast with a novel boost converter control circuitMOTOROLA INC·Filed 1996·Granted Mar 17, 1998·14 cites·19 claims
- 2750US2010072909A1System for Field-Programmed Determination of Illumination Set Points in BallastsO'GORMAN TONY·Filed 2009·Application pending·0 cites
- 2850US2010072917A1System for Control of Ballast Illumination in Step Dimming and Continuous Dimming ModesO'GORMAN TONY·Filed 2009·Application pending·0 cites
- 2949US5909365ALeakage current power supplyMOTOROLA INC·Filed 1997·Granted Jun 1, 1999·17 cites·9 claims
- 3046US5608292ASingle transistor ballast with filament preheatingMOTOROLA INC·Filed 1995·Granted Mar 4, 1997·11 cites·18 claims
- 3141US7847523B2Systems and methods for optimizing the operation of a generatorCONTINENTAL AUTOMOTIVE SYSTEMS·Filed 2008·Granted Dec 7, 2010·0 cites·23 claims
- 3239US9733288B2Apparatus and method for determining a resonant frequency of an LC circuit in situ, by comparing voltage and current polarity changesContinental automotive systems inc·Filed 2015·Granted Aug 15, 2017·0 cites·20 claims
Join the waitlist — get patent alerts
Get an alert when Dennis L. Stephens files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →