Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7596605 | System and method for providing electronic business-card service using open service interface | Ki Soon Sung, Yong Joo Lee, Jin Young Choi, Young Il Choi, Byung Sun Lee +1 more | 2009-09-29 |
| 7076490 | Object-relational database management system and method for deleting class instance for the same | Byung Sun Lee | 2006-07-11 |