Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10567319 | Method of providing instant messaging service and multiple services expanded from instant messaging service | Seung Hwan Van, Doo Shik Chung | 2020-02-18 |
| 9647967 | Method of providing instant messaging service and multiple services expanded from instant messaging service | Seung Hwan Van, Doo Shik Chung | 2017-05-09 |