Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12364973 | Catalyst for selective hydrogenation of acetylene and method for producing same | Yong Tae Kim, Sung Woo Lee, Seung Ju Han, Seok Ki Kim, Hyun-Woo Kim | 2025-07-22 |
| 12184596 | Messenger-linked service system and method using a social graph of a messenger platform | Jungmin Lee | 2024-12-31 |
| 12103899 | Method for non-oxidative direct conversion of methane | Yong Tae Kim, Sung Woo Lee, Seok Ki Kim, Seung Ju Han, Hyun-Woo Kim +1 more | 2024-10-01 |
| 11863506 | Messenger-linked service system and method using a social graph of a messenger platform | Jungmin Lee | 2024-01-02 |
| 11388119 | Messenger-linked service system and method using a social graph of a messenger platform | Jungmin Lee | 2022-07-12 |
| 9936476 | System and method for providing social network service and for setting relationship between users | Seong Hoon Kim, Jungmin Lee, Bo Yoon CHOI | 2018-04-03 |
| 9876654 | Messaging service system and method for expanding member addition operation | Haejin LEE, Seong Hoon Kim, Jungmin Lee, Bo Yoon CHOI, Youngsu Ko | 2018-01-23 |
| 9560618 | System and method for providing social network service and for setting relationship between users | Seong Hoon Kim, Jungmin Lee, Bo Yoon CHOI | 2017-01-31 |
| 9489686 | System and method based on use information obtained from a user terminal | Haejin LEE, Jungmin Lee | 2016-11-08 |
| 9274666 | Method and apparatus for providing chatting service | — | 2016-03-01 |