Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8009664 | Method for exchanging media description information between user agents using session initiation protocol | Myeon-Kee Youn, Seong-Joon Jeon, Jin-Suk Lee, Kwang Yong Choi, Jae-Kil Lee | 2011-08-30 |
| 7805519 | Method and system for sending video signal between different types of user agents | Young-Sook Ryu, Seong-Joon Jeon, Jun Seo, Soung-Kwan Kim, Ji Youn JUNG +2 more | 2010-09-28 |
| 7656889 | IP-based voice/video communication system and call pickup/forwarding method | Seong-Joon Jeon, Mun-Hyo Jung, Soung-Kwan Kim, Myeon-Kee Youn | 2010-02-02 |