Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8725812 | Method for providing a memo function in electronic mail service | Jung-Eun Ahn | 2014-05-13 |
| 8055717 | Method and system for providing permanent mail service | Jung-Eun Ahn, Ram Rhee | 2011-11-08 |