| Patent | Date |
|---|
Method For Issuing, Redeeming, Refunding, Settling And Revoking Electronic Voucher By Using Utxo-based Protocol, And Server Employing Same
App 20220309477 - SONG; Joo Han ; et al. | 2022-09-29 |
Method for issuing, using, refunding, settling and revoking electronic voucher using updated status of balance database by respective blocks in blockchain, and server using the same
Grant 11,436,595 - Song , et al. September 6, 2 | 2022-09-06 |
Method For Providing Online Ticket Service By Using Blockchain Network And Server Using The Same
App 20220277234 - UHR; Joon Sun ; et al. | 2022-09-01 |
Method for providing united point service in use of unspent transaction output based protocol and server using the same
Grant 11,416,930 - Uhr , et al. August 16, 2 | 2022-08-16 |
Method for issuing, redeeming, refunding, settling and revoking electronic voucher by using utxo-based protocol, and server employing same
Grant 11,397,928 - Song , et al. July 26, 2 | 2022-07-26 |
Method for issuing currency and making payment using utxo-based protocol and server using same
Grant 11,373,177 - Song , et al. June 28, 2 | 2022-06-28 |
Method for providing relational decentralized identifier service and blockchain node using the same
Grant 11,366,803 - Uhr , et al. June 21, 2 | 2022-06-21 |
Method for authenticating user contactlessly based on decentralized identifier using verifiable credential and authentication supporting server using the same
Grant 11,316,699 - Uhr , et al. April 26, 2 | 2022-04-26 |
Method for providing united point service using updated status of balance database with blockchain and server using the same
Grant 11,301,933 - Uhr , et al. April 12, 2 | 2022-04-12 |
Method For Authenticating User Contactlessly Based On Decentralized Identifier Using Verifiable Credential And Authentication Supporting Server Using The Same
App 20220029825 - UHR; Joon Sun ; et al. | 2022-01-27 |
Method and server for authenticating and verifying file
Grant 11,205,014 - Uhr , et al. December 21, 2 | 2021-12-21 |
Certificate Issuing System Based On Block Chain
App 20210314313 - Uhr; Joon Sun ; et al. | 2021-10-07 |
Certificate issuing system based on block chain
Grant 11,082,420 - Uhr , et al. August 3, 2 | 2021-08-03 |
Tampering Verification System And Method For Financial Institution Certificates, Based On Blockchain
App 20210226804 - UHR; Joon Sun ; et al. | 2021-07-22 |
Method for providing recording and verification service for data received and transmitted by messenger service, and server using method
Grant 11,050,690 - Hong , et al. June 29, 2 | 2021-06-29 |
Method for issuing currency and making payment by managing balance database for each block in blockchain network and server using same
Grant 11,037,111 - Song , et al. June 15, 2 | 2021-06-15 |
Method And Server For Providing Notary Service For File And Verifying File Recorded By Notary Service
App 20210167966 - UHR; Joon Sun ; et al. | 2021-06-03 |
Method and server for authenticating and verifying file
Grant 11,017,122 - Uhr , et al. May 25, 2 | 2021-05-25 |
Method for providing authentication service by using decentralized identity and server using the same
Grant 11,012,233 - Uhr , et al. May 18, 2 | 2021-05-18 |
Tampering verification system and method for financial institution certificates based on blockchain
Grant 11,005,666 - Uhr , et al. May 11, 2 | 2021-05-11 |
Method for providing virtual asset service based on decentralized identifier and virtual asset service providing server using them
Grant 10,944,574 - Uhr , et al. March 9, 2 | 2021-03-09 |
Method and server for providing notary service for file and verifying file recorded by notary service
Grant 10,944,570 - Uhr , et al. March 9, 2 | 2021-03-09 |
Method and server for providing notary service with respect to file and verifying file recorded by the notary service
Grant 10,924,285 - Uhr , et al. February 16, 2 | 2021-02-16 |
Method For Providing Relational Decentralized Identifier Service And Blockchain Node Using The Same
App 20210011905 - UHR; Joon Sun ; et al. | 2021-01-14 |
Method For Providing Virtual Asset Service Based On Decentralized Identifier And Virtual Asset Service Providing Server Using Them
App 20210006410 - UHR; Joon Sun ; et al. | 2021-01-07 |
Accredited certificate issuance system based on block chain and accredited certificate issuance method based on block chain using same, and accredited certificate authentication system based on block chain and accredited certificate authentication method based on block chain using same
Grant 10,885,501 - Uhr , et al. January 5, 2 | 2021-01-05 |
System for issuing certificate based on blockchain network, and method for issuing certificate based on blockchain network by using same
Grant 10,848,319 - Uhr , et al. November 24, 2 | 2020-11-24 |
System for authenticating certificate based on blockchain network, and method for authenticating certificate based on blockchain network by using same
Grant 10,848,318 - Uhr , et al. November 24, 2 | 2020-11-24 |
Method for providing certificate service based on smart contract and server using the same
Grant 10,826,888 - Song , et al. November 3, 2 | 2020-11-03 |
Method for creating, registering, revoking authentication information and server using the same
Grant 10,776,786 - Song , et al. September 15, 2 | 2020-09-15 |
Method for creating, registering, revoking authentication information and server using the same
Grant 10,755,237 - Song , et al. A | 2020-08-25 |
Method and service-providing server for secure transmission of user-authenticating information
Grant 10,594,498 - Uhr , et al. | 2020-03-17 |
Method And Server For Providing Notary Service With Respect To File And Verifying File Recorded By The Notary Service
App 20200059367 - UHR; Joon Sun ; et al. | 2020-02-20 |
Method And Server For Providing Notary Service For File And Verifying File Recorded By Notary Service
App 20200059366 - UHR; Joon Sun ; et al. | 2020-02-20 |
Method for managing information using tree structure based on blockchain, server and terminal using the same
Grant 10,528,756 - Uhr , et al. J | 2020-01-07 |
Method For Providing Recording And Verification Service For Data Received And Transmitted By Messenger Service, And Server Using
App 20190386940 - Hong; Jay Wu ; et al. | 2019-12-19 |
Method and server for providing notary service for file and verifying file recorded by notary service
Grant 10,491,396 - Uhr , et al. Nov | 2019-11-26 |
Method and server for authenticating and verifying file
Grant 10,469,264 - Uhr , et al. No | 2019-11-05 |
Method And Server For Authenticating And Verifying File
App 20190332810 - Uhr; Joon Sun ; et al. | 2019-10-31 |
Method And Server For Authenticating And Verifying File
App 20190332809 - Uhr; Joon Sun ; et al. | 2019-10-31 |
Method And Service-providing Server For Secure Transmission Of User-authenticating Information
App 20190296920 - UHR; Joon Sun ; et al. | 2019-09-26 |
Method and server for authenticating and verifying file
Grant 10,395,062 - Uhr , et al. A | 2019-08-27 |
Method For Managing Information Using Tree Structure Based On Blockchain, Server And Terminal Using The Same
App 20190243986 - UHR; Joon Sun ; et al. | 2019-08-08 |
Method and server for providing notary service for file and verifying file recorded by notary service
Grant 10,372,942 - Uhr , et al. | 2019-08-06 |
Method For Issuing Currency And Making Payment Using Utxo-based Protocol And Sever Using Same
App 20190236602 - SONG; Joo Han ; et al. | 2019-08-01 |
Method For Issuing Currency And Making Payment By Managing Balance Database For Each Block In Blockchain Network And Server Usin
App 20190236565 - SONG; Joo Han ; et al. | 2019-08-01 |
Method For Issuing, Redeeming, Refunding, Settling And Revoking Electronic Voucher By Using Utxo-based Protocol, And Server Empl
App 20190236560 - SONG; Joo Han ; et al. | 2019-08-01 |
Method And Server For Providing Notary Service For File And Verifying File Recorded By Notary Service
App 20190220624 - UHR; Joon Sun ; et al. | 2019-07-18 |
Secure information transmitting system and method for personal identity authentication
Grant 10,333,721 - Uhr , et al. | 2019-06-25 |
Positive active material for rechargeable lithium battery, method of preparing same and rechargeable lithium battery including same
Grant 10,270,096 - Shim , et al. | 2019-04-23 |
Method and server for providing notary service for file and verifying file recorded by notary service
Grant 10,235,538 - Uhr , et al. | 2019-03-19 |
System For Authenticating Certificate Based On Blockchain Network, And Method For Authenticating Certificate Based On Blockchain Network By Using Same
App 20190081799 - Uhr; Joon Sun ; et al. | 2019-03-14 |
System For Issuing Certificate Based On Blockchain Network, And Method For Issuing Certificate Based On Blockchain Network By Using Same
App 20190081800 - Uhr; Joon Sun ; et al. | 2019-03-14 |
Method And Server For Authenticating And Verifying File
App 20190020485 - Uhr; Joon Sun ; et al. | 2019-01-17 |
Accredited Certificate Issuance System Based On Block Chain And Accredited Certificate Issuance Method Based On Block Chain Using Same, And Accredited Certificate Authentication System Based On Block Chain And Accredited Certificate Authentication Method Based On Block Chain Using Same
App 20190005470 - Uhr; Joon Sun ; et al. | 2019-01-03 |
System for issuing public certificate on basis of block chain, and method for issuing public certificate on basis of block chain by using same
Grant 10,164,779 - Uhr , et al. Dec | 2018-12-25 |
Method And Server For Providing Notary Service For File And Verifying File Recorded By Notary Service
App 20180365448 - UHR; Joon Sun ; et al. | 2018-12-20 |
Tampering Verification System And Method For Financial Institution Certificates, Based On Blockchain
App 20180343128 - UHR; Joon Sun ; et al. | 2018-11-29 |
Method And Server For Providing Notary Service For File And Verifying File Recorded By Notary Service
App 20180337787 - UHR; Joon Sun ; et al. | 2018-11-22 |
Secure Information Transmitting System And Method For Personal Identity Authentication
App 20180331837 - UHR; Joon Sun ; et al. | 2018-11-15 |
Method And Server For Authenticating And Verifying File
App 20180300507 - Uhr; Joon Sun ; et al. | 2018-10-18 |
System For Issuing Public Certificate On Basis Of Block Chain, And Method For Issuing Public Certificate On Basis Of Block Chain By Using Same
App 20180294977 - Uhr; Joon Sun ; et al. | 2018-10-11 |
Certificate Issuing System Based On Block Chain
App 20180227293 - UHR; Joon Sun ; et al. | 2018-08-09 |
Positive active material for rechargeable lithium battery, method of preparing same, and rechargeable lithium battery including same
Grant 10,020,502 - Shim , et al. July 10, 2 | 2018-07-10 |
Method For Providing United Point Service Using Updated Status Of Balance Database With Blockchain And Server Using The Same
App 20180189878 - Uhr; Joon Sun ; et al. | 2018-07-05 |
Method For Providing United Point Service In Use Of Unspent Transaction Output Based Protocol And Server Using The Same
App 20180189877 - Uhr; Joon Sun ; et al. | 2018-07-05 |
System And Method For Verifying Forgery Of Financial Institution Proof Documents On Basis Of Block Chain
App 20180121923 - Uhr; Joon Sun ; et al. | 2018-05-03 |
Method For Providing Certificate Service Based On Smart Contract And Server Using The Same
App 20180109516 - Song; Joo Han ; et al. | 2018-04-19 |
Method For Issuing, Using, Refunding, Settling And Revocating Electronic Voucher Using Updated Status Of Balance Database By Respective Blocks In Blockchain, And Server Using The Same
App 20180101844 - Song; Joo Han ; et al. | 2018-04-12 |
Method For Using And Revoking Authentication Information And Blockchain-based Server Using The Same
App 20170330180 - Song; Joo Han ; et al. | 2017-11-16 |
Method For Issuing Authentication Information And Blockchain-based Server Using The Same
App 20170330179 - Song; Joo Han ; et al. | 2017-11-16 |
Method For Creating, Registering, Revoking Authentication Information And Server Using The Same
App 20170316497 - Song; Joo Han ; et al. | 2017-11-02 |
Method For Creating, Registering, Revoking Authentication Information And Server Using The Same
App 20170302460 - Song; Joo Han ; et al. | 2017-10-19 |
Positive Active Material For Rechargeable Lithium Battery, Method Of Preparing Same And Rechargeable Lithium Battery Including Same
App 20160181610 - SHIM; Jae-Hyun ; et al. | 2016-06-23 |
Device for estimating a lifetime of a secondary battery and method thereof
Grant 9,360,531 - Suh , et al. June 7, 2 | 2016-06-07 |
Positive Active Material For Rechargeable Lithium Battery, Method Of Preparing Same, And Rechargeable Lithium Battery Including Same
App 20160149215 - Shim; Jae-Hyun ; et al. | 2016-05-26 |
Device for analyzing film on surface of electrode for rechargeable lithium battery and method of analyzing film on surface of electrode for rechargeable lithium battery using same
Grant 9,267,904 - Lee , et al. February 23, 2 | 2016-02-23 |
Device For Analyzing Film On Surface Of Electrode For Rechargeable Lithium Battery And Method Of Analyzing Film On Surface Of Electrode For Rechargeable Lithium Battery Using Same
App 20130287173 - Lee; Seon-Hong ; et al. | 2013-10-31 |
Device For Estimating A Lifetime Of A Secondary Battery And Method Thereof
App 20130166233 - Suh; Seung Bum ; et al. | 2013-06-27 |
Positive Active Material For Rechargeable Lithium Battery And Rechargeable Lithium Battery Comprising Same
App 20120135318 - KIM; Jae-Hyuk ; et al. | 2012-05-31 |
Imidazole ring-containing compound and organic electroluminescence display device
Grant 7,351,481 - Lee , et al. April 1, 2 | 2008-04-01 |
Apparatus and method for converting MAC frame in broadband wireless access (BWA) system
App 20070201390 - Kim; Hyung-Seok ; et al. | 2007-08-30 |
System and method for transmitting uplink data in a broadband wireless communication system
App 20070189239 - Lim; Se-Youn ; et al. | 2007-08-16 |
Method for efficient routing in a wireless mesh network
App 20070076686 - Song; Joo-Han | 2007-04-05 |
Imidazole ring-containing compound and organic electroluminescence display device
App 20050079387 - Lee, Seok-Jong ; et al. | 2005-04-14 |
Imidazole ring-containing compound and organic electroluminescence display device
App 20050074632 - Lee, Seok-Jong ; et al. | 2005-04-07 |
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