Inventor · disambiguated record
Kwang Su Chang
Also filed as: CHANG KWANG S · CHANG KWANG SU
1 granted patent·7 pending applications·72 citations·filing 2001–2017
54Inventor score
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8 records- 0187US7552094B2Optical payment transceiver and system using the sameHAREXINFOTECH INC·Filed 2001·Granted Jun 23, 2009·72 cites·13 claims
- 0260US2017330168A1Method and portable apparatus for settling transactionHAREXINFOTECH INC·Filed 2017·Application pending·0 cites
- 0360US2009248526A1Method and portable apparatus for settling transactionHAREXINFOTECH INC·Filed 2009·Application pending·0 cites
- 0456US2008103981A1Optical payment transceiver and system using the samePARK KYUNG Y·Filed 2007·Application pending·0 cites
- 0556US2008249948A1Financial information input method using symmetrical key security algorithm and commercial transaction system for mobile communicationsKIM CHUL KI·Filed 2008·Application pending·0 cites
- 0654US2007061256A1Optical payment transceiver and system using the sameHAREXINFOTECH INC·Filed 2006·Application pending·0 cites
- 0745US2006173790A1Optical payment transceiver and system using the sameHAREXINFOTECH INC·Filed 2005·Application pending·0 cites
- 0842US2004243496A1Financial information input method using symmetrical key security algorithm and commercial transaction system for mobile communicationsFiled 2002·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →