Assignee
CHA SUNG CHUL
KR·0 granted patents·4 pending applications·0 citations·filing 2011–2012
Top patents by PatentIndex Score
4 records- 0149US2013214493A1Vehicle piston ring having multi-layer coatingCHA SUNG CHUL·Filed 2012·Application pending·0 cites
- 0244US2012315453A1Coating layer structure of basic material of moldCHA SUNG CHUL·Filed 2011·Application pending·0 cites
- 0344US2013101818A1Surface coating film for a forming machine and method of manufacturing the sameCHA SUNG CHUL·Filed 2012·Application pending·0 cites
- 0442US2013200572A1Vehicle piston ring having a nano multi-layer coatingCHA SUNG CHUL·Filed 2012·Application pending·0 cites
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