Inventor · disambiguated record
Haoran Zeng
Also filed as: ZENG HAORAN
4 granted patents·17 citations·filing 2003–2007
71Inventor score
Technology areasH05B
Files withPHI HONG ELECTRONICS SHANGHAI2DONGYANG TOSPO LIGHTING CO LTD1HENGDIAN TOSPO ELECTRONICS CO1
Top patents by PatentIndex Score
4 records- 0160US7336040B2Single-channel comprehensive protection circuitHENGDIAN TOSPO ELECTRONICS CO·Filed 2006·Granted Feb 26, 2008·4 cites·9 claims
- 0252US7564195B2Circuit of the electronic ballast with the capability of automatic restartDONGYANG TOSPO LIGHTING CO LTD·Filed 2007·Granted Jul 21, 2009·2 cites·3 claims
- 0352US6933684B2Electronic ballast using cut and save technologyPHI HONG ELECTRONICS SHANGHAI·Filed 2003·Granted Aug 23, 2005·8 cites·1 claims
- 0444US6828732B2Fluorescent lamp end-of-life protection circuitPHI HONG ELECTRONICS SHANGHAI·Filed 2003·Granted Dec 7, 2004·3 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →