Inventor · disambiguated record
Kyoung Joon Chang
Also filed as: CHANG KYOUNG JOON
7 granted patents·9 citations·filing 2007–2009
74Inventor score
Technology areasF01L
Top patents by PatentIndex Score
7 records- 0178US7823552B2Continuous variable valve lift apparatusHYUNDAI MOTOR CO LTD·Filed 2007·Granted Nov 2, 2010·6 cites·20 claims
- 0259US7789053B2Continuous variable valve lift apparatusHYUNDAI MOTOR CO LTD·Filed 2008·Granted Sep 7, 2010·2 cites·32 claims
- 0354US7836863B2Variable valve lift apparatus of engine for vehiclesHYUNDAI MOTOR CO LTD·Filed 2008·Granted Nov 23, 2010·1 cites·20 claims
- 0448US8146548B2Continuously variable valve lift device and operation logic thereofYANG JEI CHOON·Filed 2009·Granted Apr 3, 2012·0 cites·16 claims
- 0546US7950360B2Continuous variable valve lift apparatusHYUNDAI MOTOR CO LTD·Filed 2008·Granted May 31, 2011·0 cites·7 claims
- 0646US7918202B2Variable valve lift apparatusHYUNDAI MOTOR CO LTD·Filed 2008·Granted Apr 5, 2011·0 cites·5 claims
- 0744US7905207B2Variable valve lift apparatusHYUNDAI MOTOR CO LTD·Filed 2008·Granted Mar 15, 2011·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →