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CHANG JOON HYUN

Overview
  • Total Patents
    17
About

CHANG JOON HYUN has a total of 17 patent applications. Its first patent ever was published in 2003. It filed its patents most often in Republic of Korea. Its main competitors in its focus markets it methods for management, civil engineering and computer technology are CITICORP DEV CENTER INC, GORDONOMICS LTD and PAYDIANT INC.

Patent filings in countries

World map showing CHANG JOON HYUNs patent filings in countries
# Country Total Patents
#1 Republic of Korea 17

Patent filings per year

Chart showing CHANG JOON HYUNs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chang Joon Hyun 17
#2 Chang Si Young 1

Latest patents

Publication Filing date Title
KR20100109001A Electronic polling system confirmable own ballot by unique identification on line
KR20080043287A Public notarizing method and system for eelctronic documents
KR20070075391A Method of utilizing an actual password combined personal password with random number through predetermined various processes
KR20060107978A Method for electronic business transaction thru individual price negotiation for each nominated parties
KR20060100352A Variable password application method in the device of generation random numbers combined with the password
KR20060098412A Timely variable password formation module and a floating password application method
KR20060085232A The method and system for outsourcing administration on web-server provided for member-clients in an industrial or social community organization
KR20060073555A The method and system for outsourcing administration on web-server and employees qualification periodically performed by customer for advancements and compensations
KR20040072572A An open bidding system in an electronic commercial transaction and competition separatedly providing comparable and non-comparable bid informations and confirmed evaluations and make decision by each secret keys
KR20040064670A Program for direct transmitting of order sheet on Internet shopping performed by javascripts functions through email system
KR20040027854A Payments by the personal wireless telecommunication devices of displaying symbolic identified graphic invoice for the transaction
KR20040027765A Subscription and reservation system by personal wireless telecommunication devices with graphic symbols included confirmation code
KR20040027768A Symbolic identification electronic tag providing system to the personal wireless telecommunication devices for the goods delivery system
KR20040027767A Informative Symbol distribution system to the personal wireless telecommunication devices for subscriptions
KR20030077512A Meeting connection system by on mobile telecommunication terminals between peoples at same location and same time
KR20030079854A Appointments settling method on free date by checking personal assigned data of cellular phone in a personal schedule management system
KR20030079837A Automatic scheduling and total settlement system for works and meetings between personal and communities provided with commercial informations for the schedule