| 12348470 |
Instant messaging server providing multiple types of chat rooms |
Eun Hye Kim |
2025-07-01 |
| 12323374 |
Method and apparatus for messaging service |
Eun Hye Kim, Seok-Gyu Lee, Sul Gi Kim, In Hae Choi, Tae Jun Choi +1 more |
2025-06-03 |
| 12299059 |
Method and apparatus for messaging service |
Eun Hye Kim, Seok-Gyu Lee, Sul Gi Kim, In Hae Choi, Chang Hyuk One |
2025-05-13 |
| 12126579 |
Method and apparatus for messaging service |
Dong Hyun Ban, Dong Hee Hong, Hui Kim, Na Young Kim |
2024-10-22 |
| 12095714 |
Method and apparatus for messaging service |
Eun Hye Kim, Seok-Gyu Lee, Sul Gi Kim, In Hae Choi |
2024-09-17 |
| 11824823 |
Instant messaging server providing multiple types of chat rooms |
Eun Hye Kim |
2023-11-21 |
| 11330444 |
Cognitive radio communication control device for determining cognitive radio terminal and cognitive radio terminal determining method |
Seong-Lyun Kim, Jee Min Kim |
2022-05-10 |
| 11071110 |
Method and device for allocating dynamic frequency for secondary user in cognitive radio network |
Seong-Lyun Kim, Jee Min Kim, Hye-Sung Kim, Seung-Woo Ko |
2021-07-20 |