Inventor · disambiguated record
Wa Hing Leung
Also filed as: LEUNG WA HING
21 granted patents·10 pending applications·155 citations·filing 2002–2018
94Inventor score
Top patents by PatentIndex Score
31 records- 0189US8864344B2Polyhedral secondary optical lensJIANG JIN BO·Filed 2012·Granted Oct 21, 2014·23 cites·11 claims
- 0288US10145531B2Light emitting diode strobe lighting systemHUIZHOU LIGHT ENGINE LTD·Filed 2016·Granted Dec 4, 2018·6 cites·29 claims
- 0388US8508140B2LED switch circuitry for varying input voltage sourceLEUNG WA-HING·Filed 2010·Granted Aug 13, 2013·19 cites·11 claims
- 0487US8723439B2Triac dimmable power supply unit for LEDLEUNG WA-HING·Filed 2010·Granted May 13, 2014·14 cites·16 claims
- 0585US8613526B1LED aquarium lighting deviceLI VINCENT TSZ YEUNG·Filed 2012·Granted Dec 24, 2013·19 cites·30 claims
- 0682US7009580B2Solid state lighting array driving circuitCOTCO HOLDINGS LTD·Filed 2002·Granted Mar 7, 2006·33 cites·3 claims
- 0781US10251236B1Lamps having current leakage protection, systems and methods of useHUIZHOU LIGHT ENGINE LTD·Filed 2018·Granted Apr 2, 2019·3 cites·21 claims
- 0880US8766555B2Tunable white color methods and uses thereofTU QIFEI·Filed 2011·Granted Jul 1, 2014·15 cites·46 claims
- 0978US9161404B2AC LED array configuration switching circuit triggered by source voltage levelHUIZHOU LIGHT ENGINE LTD·Filed 2013·Granted Oct 13, 2015·5 cites·16 claims
- 1076US9175832B2Faceted LED street lamp lensLIGHT ENGINE LTD·Filed 2013·Granted Nov 3, 2015·9 cites·16 claims
- 1172US9320099B2LED Switch Circuitry for Varying Input Voltage SourceHUIZHOU LIGHT ENGINE LTD·Filed 2013·Granted Apr 19, 2016·3 cites·11 claims
- 1272US9113525B2LED switch circuitry for varying input voltage sourceHUIZHOU LIGHT ENGINE LTD·Filed 2015·Granted Aug 18, 2015·2 cites·20 claims
- 1361US9462648B2Method and arrangement for remotely driving light emitting diodes from a three-phase power source via a single phase cable systemHUIZHOU LIGHT ENGINE LTD·Filed 2014·Granted Oct 4, 2016·1 cites·15 claims
- 1461US9445472B2Method and circuit for driving light-emitting diodes from three-phase power sourceHUIZHOU LIGHT ENGINE LTD·Filed 2014·Granted Sep 13, 2016·1 cites·20 claims
- 1558US2018231219A1Troffer lighting systems and methods for installing the sameHUIZHOU LIGHT ENGINE LTD·Filed 2018·Application pending·0 cites
- 1656US2018231198A1Troffer lighting systems and methods for installing the sameHUIZHOU LIGHT ENGINE LTD·Filed 2018·Application pending·0 cites
- 1754US2018231218A1Troffer lighting systems and methods for installing the sameHUIZHOU LIGHT ENGINE LTD·Filed 2018·Application pending·0 cites
- 1851US9322517B2Non-glare reflective LED lighting apparatus with heat sink mountingCHU TIN PO·Filed 2009·Granted Apr 26, 2016·2 cites·20 claims
- 1951US2015042236A1Method and apparatus for controlling brightness of light emitting diodesHUIZHOU LIGHT ENGINE LTD·Filed 2014·Application pending·0 cites
- 2048US9161400B2Method and apparatus for cancelling output current ripples in LED driving circuitsHUIZHOU LIGHT ENGINE LTD·Filed 2013·Granted Oct 13, 2015·0 cites·14 claims
- 2147US8947014B2LED switch circuitry for varying input voltage sourceLEUNG WA-HING·Filed 2011·Granted Feb 3, 2015·0 cites·23 claims
- 2245US2015015142A1Led light bulb with leds mounted on angled circuit boardHUIZHOU LIGHT ENGINE LTD·Filed 2013·Application pending·0 cites
- 2344US2015008834A1Lossless forward voltage matching network for led driversHUIZHOU LIGHT ENGINE LTD·Filed 2013·Application pending·0 cites
- 2443US9206975B2Non-glare reflective LED lighting apparatus with heat sink mountingHUIZHOU LIGHT ENGINE LTD·Filed 2013·Granted Dec 8, 2015·0 cites·12 claims
- 2542US2012307498A1Light bulb with thermally conductive glass globeLO CHUNG WAI PAUL·Filed 2012·Application pending·0 cites
- 2641US9234646B2Non-glare reflective LED lighting apparatus with heat sink mountingCHU TIN PO·Filed 2012·Granted Jan 12, 2016·0 cites·20 claims
- 2741US2013039048A1Porcelain enamel on led lighting device housingLO CHUNG W·Filed 2012·Application pending·0 cites
- 2837US8928241B2Method and apparatus for controlling brightness of light emitting diodesLO CHUNG PING KEVIN·Filed 2010·Granted Jan 6, 2015·0 cites·2 claims
- 2937US2012056608A1Stabilizing network for electronic transformer driven led devicesSIU JOHNNY·Filed 2010·Application pending·0 cites
- 3035US9357604B2Light engine with LED switching arraySIU KAM WAH·Filed 2012·Granted May 31, 2016·0 cites·16 claims
- 3134US2016091148A1Solid-state lighting apparatus with detachable moduleHUIZHOU LIGHT ENGINE LTD·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →