Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10397788 | Multimedia message service method and system | Kyung-Tak Lee, Joon-Goo Park, Sang-Kyung Sung | 2019-08-27 |
| 10117102 | Multimedia message service method and system | Kyung-Tak Lee, Joon-Goo Park, Sang-Kyung Sung | 2018-10-30 |
| 9930531 | Multimedia message service method and system | Kyung-Tak Lee, Joon-Goo Park, Sang-Kyung Sung | 2018-03-27 |
| 9282101 | Multimedia message service method and system | Kyung-Tak Lee, Joon-Goo Park, Sang-Kyung Sung | 2016-03-08 |
| 9071660 | System and method for PoC session substitution | Venkateswar Jeedigunta, Sung-Jin Park, Sang-Kyung Sung | 2015-06-30 |
| 8812042 | Method and system for interrupted floor recovery in push-to-talk over cellular network | Venkateswar Jeedigunta, Hoskote Satyajeet, Sung-Jin Park, Sang-Kyung Sung | 2014-08-19 |
| 8787881 | Multimedia message service method and system | Kyung-Tak Lee, Joon-Goo Park, Sang-Kyung Sung | 2014-07-22 |
| 7869796 | Method and apparatus for managing multimedia messages | Kyung-Tak Lee, Wuk Kim, Sang-Kyung Sung | 2011-01-11 |