Inventor · disambiguated record
Ka Wai Eric Cheng
Also filed as: CHENG KA-WAI ERIC
17 granted patents·12 pending applications·71 citations·filing 2002–2025
91Inventor score
Files withUNIV HONG KONG POLYTECHNIC15CHENG KA WAI ERIC5VICWOOD PROSPERITY TECH LIMITED4ETON SOLUTIONS LTD1MAK SHUI HUNG1
Top patents by PatentIndex Score
29 records- 0186US8544580B2In-wheel switched reluctance motor driveCHENG KA WAI ERIC·Filed 2010·Granted Oct 1, 2013·11 cites·9 claims
- 0277US8277678B2Polymer-bonded magnetic materialsCHENG KA WAI ERIC·Filed 2008·Granted Oct 2, 2012·14 cites·10 claims
- 0376US10680530B2Power supply controlVICWOOD PROSPERITY TECH LIMITED·Filed 2019·Granted Jun 9, 2020·2 cites·20 claims
- 0470US7381483B2Core having magnetic propertiesUNIV HONG KONG POLYTECHNIC·Filed 2004·Granted Jun 3, 2008·9 cites·7 claims
- 0570US2024088412A1Fuel cell power generation deviceUNIV HONG KONG POLYTECHNIC·Filed 2023·Application pending·0 cites
- 0669US10693321B2Inductive power transfer using diverted magnetic fieldUNIV HONG KONG POLYTECHNIC·Filed 2018·Granted Jun 23, 2020·2 cites·18 claims
- 0765US10418825B2Voltage balancing circuitUNIV HONG KONG POLYTECHNIC·Filed 2015·Granted Sep 17, 2019·2 cites·5 claims
- 0864US11264987B2Living body detection method and apparatusVICWOOD PROSPERITY TECH LIMITED·Filed 2018·Granted Mar 1, 2022·1 cites·20 claims
- 0963US2025274051A1Magnetically coupled charging system and the method thereofUNIV HONG KONG POLYTECHNIC·Filed 2025·Application pending·0 cites
- 1062US10819340B2Living body detection method and apparatusVICWOOD PROSPERITY TECH LIMITED·Filed 2017·Granted Oct 27, 2020·1 cites·18 claims
- 1162US2025183698A1Energy Management Method For Solar Freezer TruckUNIV HONG KONG POLYTECHNIC·Filed 2024·Application pending·0 cites
- 1261US8217618B2Energy-saving controller for three-phase induction motorsCHENG KA WAI ERIC·Filed 2009·Granted Jul 10, 2012·5 cites·12 claims
- 1360US8833780B2Active suspension system and methodCHENG KA WAI ERIC·Filed 2011·Granted Sep 16, 2014·5 cites·31 claims
- 1459US7675401B2Electronic circuit boardUNIV HONG KONG POLYTECHNIC·Filed 2005·Granted Mar 9, 2010·1 cites·17 claims
- 1559US6853569B2DC to DC converterUNIV HONG KONG POLYTECHNIC·Filed 2003·Granted Feb 8, 2005·18 cites·15 claims
- 1657US12255366B2Energy storage systems and ammonia-powered electric vehicles including the sameUNIV HONG KONG POLYTECHNIC·Filed 2022·Granted Mar 18, 2025·0 cites·17 claims
- 1756US2025162466A1Energy Management Method, System, Computer Device And Readable Storage MediumUNIV HONG KONG POLYTECHNIC·Filed 2024·Application pending·0 cites
- 1854US12334836B2Magnetically coupled charging system and the method thereofUNIV HONG KONG POLYTECHNIC·Filed 2022·Granted Jun 17, 2025·0 cites·9 claims
- 1950US11211795B2Method and apparatus for load monitoringVICWOOD PROSPERITY TECH LIMITED·Filed 2020·Granted Dec 28, 2021·0 cites·20 claims
- 2050US2025206349A1Autonomous driving system with prioritizing energy-saving considerationsUNIV HONG KONG POLYTECHNIC·Filed 2024·Application pending·0 cites
- 2146US8080949B2HID ballast with integrated voltage multiplier and lamp temperature compensationCHENG KA WAI ERIC·Filed 2009·Granted Dec 20, 2011·0 cites·7 claims
- 2246US2020373048A1Power transmission apparatus and methodsTECHWELL HK LTD·Filed 2019·Application pending·0 cites
- 2343US2024380250A1Wireless charging system with a split transmitter and a split receiverUNIV HONG KONG POLYTECHNIC·Filed 2022·Application pending·0 cites
- 2440US2003235705A1Composite magnetic materialUNIV HONG KONG POLYTECHNIC·Filed 2002·Application pending·0 cites
- 2539US2012096885A1Solar powered vehicle air-conditioning systemMAK SHUI HUNG·Filed 2011·Application pending·0 cites
- 2637US2004065471A1Electronic circuit boardUNIV HONG KONG POLYTECHNIC·Filed 2002·Application pending·0 cites
- 2734US2012262067A1Battery operated devicesTAM SIU CHUNG·Filed 2011·Application pending·0 cites
- 2832US10211623B2Power supply controlETON SOLUTIONS LTD·Filed 2016·Granted Feb 19, 2019·0 cites·20 claims
- 2929US2012055175A1Automobile Hybrid Air Conditioning SystemTING WAI LAM·Filed 2010·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Ka Wai Eric Cheng 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 →