Issued Patents 2021
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11205014 | Method and server for authenticating and verifying file | Joon Sun Uhr, Jay Wu Hong | 2021-12-21 |
| 11082420 | Certificate issuing system based on block chain | Joon Sun Uhr, Jay Wu Hong | 2021-08-03 |
| 11050690 | Method for providing recording and verification service for data received and transmitted by messenger service, and server using method | Jay Wu Hong, Joon Sun Uhr | 2021-06-29 |
| 11037111 | Method for issuing currency and making payment by managing balance database for each block in blockchain network and server using same | Jay Wu Hong, Joon Sun Uhr | 2021-06-15 |
| 11017122 | Method and server for authenticating and verifying file | Joon Sun Uhr, Jay Wu Hong | 2021-05-25 |
| 11012233 | Method for providing authentication service by using decentralized identity and server using the same | Joon Sun Uhr | 2021-05-18 |
| 11005666 | Tampering verification system and method for financial institution certificates based on blockchain | Joon Sun Uhr, Jay Wu Hong | 2021-05-11 |
| 10944574 | Method for providing virtual asset service based on decentralized identifier and virtual asset service providing server using them | Joon Sun Uhr | 2021-03-09 |
| 10944570 | Method and server for providing notary service for file and verifying file recorded by notary service | Joon Sun Uhr, Jay Wu Hong | 2021-03-09 |
| 10924285 | Method and server for providing notary service with respect to file and verifying file recorded by the notary service | Joon Sun Uhr, Jay Wu Hong | 2021-02-16 |
| 10885501 | 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 | Joon Sun Uhr, Jay Wu Hong | 2021-01-05 |