Issued Patents 2023
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11700133 | Zero-knowledge proof-based certificate service method using blockchain network, certification support server using same, and user terminal using same | Kyoo Hyung Han | 2023-07-11 |
| 11568396 | Method for using and revoking authentication information and blockchain-based server using the same | Joo Han Song, Joon Sun Uhr | 2023-01-31 |
| 11556926 | Method for approving use of card by using blockchain-based token id and server using method | Moon Gju Suh, Joon Sun Uhr | 2023-01-17 |
| 11544640 | Method for providing online ticket service by using blockchain network and server using the same | Joon Sun Uhr, Joo Han Song | 2023-01-03 |