Inventor
JOO HAN SONG
Inventor
KR
Overview
Patents· 16 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Qprimary
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes36%
H04LTransmission of digital information, e.g. telegraphic communication36%
G06FElectric digital data processing24%
G06TImage data processing or generation, in general2%
G06VImage or video recognition or understanding2%
PatentTitleYear
12,212,692Tampering verification system and method for financial institution certificates, based on blockchain202512,063,209Certificate issuing system based on block chain202411,907,917Method for issuing, redeeming, refunding, settling and revoking electronic voucher by using utxo-based protocol, and server employing same202411,568,396Method for using and revoking authentication information and blockchain-based server using the same202311,544,640Method for providing online ticket service by using blockchain network and server using the same202311,538,036System and method for verifying forgery of financial institution proof documents on basis of block chain202211,514,440Method for issuing authentication information and blockchain-based server using the same202211,438,167Method and server for providing notary service for file and verifying file recorded by notary service202211,436,595Method for issuing, using, refunding, settling and revoking electronic voucher using updated status of balance database by respective blocks in blockchain, and server using the same202211,416,930Method for providing united point service in use of unspent transaction output based protocol and server using the same202211,397,928Method for issuing, redeeming, refunding, settling and revoking electronic voucher by using utxo-based protocol, and server employing same202211,373,177Method for issuing currency and making payment using utxo-based protocol and server using same202211,366,803Method for providing relational decentralized identifier service and blockchain node using the same202211,316,699Method for authenticating user contactlessly based on decentralized identifier using verifiable credential and authentication supporting server using the same202211,301,933Method for providing united point service using updated status of balance database with blockchain and server using the same202211,205,014Method and server for authenticating and verifying file2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2024Patents assigned to COINPLUG INC (14)· patent assignee history
2021–2025Based in KR· patent location history
2024–2025Patents assigned to CPLABS INC (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| COINPLUG INC | 14 | 2021–2024 |
| CPLABS INC | 3 | 2024–2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| KR | 16 | 2021–2025 |