Inventor · disambiguated record
Chang-Yeop Hwang
Also filed as: HWANG CHANG-YEOP
1 granted patent·3 pending applications·2 citations·filing 2004–2006
17Inventor score
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4 records- 0148US8229860B2Payment system and its method for supporting user verification in VoIP configurationHWANG CHANG-YEOP·Filed 2005·Granted Jul 24, 2012·2 cites·19 claims
- 0239US2007027775A1Method for approving electronic payment using the short message service including url call back and system for implementing the sameHWANG CHANG-YEOP·Filed 2004·Application pending·0 cites
- 0330US2009204510A1System and method for paying charge of internet item using request of gift in mobile configurationMOBILIANS CO LTD·Filed 2006·Application pending·0 cites
- 0418US2009282334A1System and method for providing information using outside sound recognition of mobile phone, and mobile terminal for the sameMOBILIANS CO LTD·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →