Issued Patents 2021
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11210661 | Method for providing payment gateway service using UTXO-based protocol and server using same | Moon Gju Suh | 2021-12-28 |
| 11205014 | Method and server for authenticating and verifying file | Joon Sun Uhr, Joo Han Song | 2021-12-21 |
| 11082420 | Certificate issuing system based on block chain | Joon Sun Uhr, Joo Han Song | 2021-08-03 |
| 11050690 | Method for providing recording and verification service for data received and transmitted by messenger service, and server using method | Joon Sun Uhr, Joo Han Song | 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 | Joo Han Song, Joon Sun Uhr | 2021-06-15 |
| 11017122 | Method and server for authenticating and verifying file | Joon Sun Uhr, Joo Han Song | 2021-05-25 |
| 11005666 | Tampering verification system and method for financial institution certificates based on blockchain | Joon Sun Uhr, Joo Han Song | 2021-05-11 |
| 11004044 | Method for paying cost of IoT device based on blockchain, and server, service providing device, and digital wallet using the same | Joon Sun Uhr | 2021-05-11 |
| 10944570 | Method and server for providing notary service for file and verifying file recorded by notary service | Joon Sun Uhr, Joo Han Song | 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, Joo Han Song | 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, Joo Han Song | 2021-01-05 |