Assignee
LEE CHANG KEUN
KR·1 granted patent·4 pending applications·3 citations·filing 2008–2018
Top patents by PatentIndex Score
5 records- 0172US9226886B2Method for manufacturing a cosmetic bio-cellulose mask pack sheet and use thereofLEE CHANG KEUN·Filed 2011·Granted Jan 5, 2016·3 cites·3 claims
- 0249US2010161401A1Incentive providing system for increase of visitors on internet site and method thereofLEE CHANG-KEUN·Filed 2008·Application pending·0 cites
- 0346US2021004850A1Online co-promotion system for franchisee using event service for predicting lottery winning numbersLEE CHANG KEUN·Filed 2018·Application pending·0 cites
- 0445US2015269599A1System for selling products by providing raffle type cash rewards based on qr code and service method for selling products using sameLEE CHANG KEUN·Filed 2012·Application pending·0 cites
- 0543US2013097042A1Commercial transaction system using online information matching and service providing method thereofLEE CHANG KEUN·Filed 2011·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →