Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7478236 | Method of validating certificate by certificate validation server using certificate policies and certificate policy mapping in public key infrastructure | Young Seob CHO, Sang Rae Cho, Dae Seon Choi, Tae-Sung Kim, Hee Sun Kim +1 more | 2009-01-13 |
| 7366904 | Method for modifying validity of a certificate using biometric information in public key infrastructure-based authentication system | Taesung Kim, Hee Sun Kim, Dae Seon Choi, Young Seob CHO, Sang Rae Cho +1 more | 2008-04-29 |
| 7133296 | Portable USB storage device | Dae Seon Choi, Hee Sun Kim, Taesung Kim, Sang Rae Cho, Young Seob CHO +1 more | 2006-11-07 |