Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7991848 | Method and apparatus for sending instant message disposition notification request and response in a converged-IP messaging service and system thereof | Seung Yong Lee, Kyung-Tak Lee, Sung-Jin Park | 2011-08-02 |