Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10523812 | Method and system for providing ringback tone service and ringtone service in Voice over Internet Protocol (VoIP) call service | Deok Yong Ahn, Sanghyuk Suh, Tae Jeong LEE, Jaehyun Lee, Min Jeong Kim +4 more | 2019-12-31 |
| 10469415 | Apparatus for providing document sharing service based on messaging service, and method using the apparatus | — | 2019-11-05 |
| 10182095 | Method and system for video call using two-way communication of visual or auditory effect | — | 2019-01-15 |