Inventor · disambiguated record
Hsi Chen Chang
Also filed as: CHANG HSI CHEN
3 granted patents·1 pending application·7 citations·filing 2002–2008
60Inventor score
Top patents by PatentIndex Score
4 records- 0166US7902763B2Piezoelectric cascade resonant lamp-ignition circuitMIDAS WEI TRADING CO LTD·Filed 2008·Granted Mar 8, 2011·4 cites·9 claims
- 0256US7683554B2High-voltage lamp-ignition piezoelectric oscillatorMIDAS WEI TRADING CO LTD·Filed 2008·Granted Mar 23, 2010·2 cites·6 claims
- 0339US2009309460A1Insulation piezoelectric transformerWEI TAO-CHIN·Filed 2008·Application pending·0 cites
- 0427US6611113B2Cool cathode tube control circuitFiled 2002·Granted Aug 26, 2003·1 cites·12 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →