Assignee
CHEON KWANG JU
KR·4 granted patents·12 citations·filing 2014–2022
Technology mixB43K4
Top patents by PatentIndex Score
4 records- 0184US10434815B2Slide-type writing instrument having drying-prevention deviceCHEON KWANG JU·Filed 2018·Granted Oct 8, 2019·4 cites·2 claims
- 0280US9340060B2Slide type writing tool having device for preventing drynessCHEON KWANG JU·Filed 2014·Granted May 17, 2016·5 cites·1 claims
- 0379US10052906B2Multicolor writing instrument with automatic return functionCHEON KWANG JU·Filed 2017·Granted Aug 21, 2018·3 cites·1 claims
- 0453US11813886B2Slide-type writing instrument having drying-prevention deviceCHEON KWANG JU·Filed 2022·Granted Nov 14, 2023·0 cites·5 claims
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