Inventor · disambiguated record
Jianhua Duan
Also filed as: DUAN JIANHUA
6 granted patents·2 pending applications·14 citations·filing 2009–2024
77Inventor score
Files withDUAN JIANHUA3BCD SEMICONDUCTOR MFG LIMITED1HUBEI HAISHAN TECH CO LTD SHANGHAI BRANCH1Nexperia BV1REN XUEGANG1
Top patents by PatentIndex Score
8 records- 0176US8878448B2Circuit and method for driving LED lamp with a dimmerDUAN JIANHUA·Filed 2011·Granted Nov 4, 2014·4 cites·13 claims
- 0268US10462868B2Circuit and method for driving LED lamp with a dimmerBCD SEMICONDUCTOR MFG LIMITED·Filed 2014·Granted Oct 29, 2019·2 cites·13 claims
- 0366US8923021B2Control circuit and system for switch mode power supplyREN XUEGANG·Filed 2011·Granted Dec 30, 2014·4 cites·20 claims
- 0455US9431895B2High power-factor control circuit and power supplySHANGHAI SIM-BCD SEMICONDUCTOR MFG CO LTD·Filed 2014·Granted Aug 30, 2016·1 cites·23 claims
- 0549USD1060628SElectric warmerDUAN JIANHUA·Filed 2023·Granted Feb 4, 2025·1 cites·1 claims
- 0648US8482943B2Power transistor driving circuits and methods for switching mode power suppliesDUAN JIANHUA·Filed 2009·Granted Jul 9, 2013·2 cites·20 claims
- 0748US2016336824A1Stator Disc and Axial Flux Permanent Magnet ApparatusHUBEI HAISHAN TECH CO LTD SHANGHAI BRANCH·Filed 2014·Application pending·0 cites
- 0840US2025047284A1Electronic device for shifting a voltage levelNexperia BV·Filed 2024·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →