| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 10 | |
| #2 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | IT methods for management | |
| #3 | Telecommunications | |
| #4 | Digital networks | |
| #5 | Computer technology | |
| #6 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Kim Seung-Hak | 9 |
| #2 | Park Hoon | 2 |
| #3 | Kim Seung Hak | 2 |
| #4 | Yoon Bo Kyoung | 2 |
| Publication | Filing date | Title |
|---|---|---|
| WO2013133466A1 | Advertisement provision in video on demand | |
| WO2013103170A1 | Issuing credit according to remaining purchase information of on-demand video service | |
| WO2009091108A1 | Apparatus and method for purchasing multimedia contents through wired/wireless broadcasting and communication services | |
| US2009077581A1 | Method for channel change in digital broadcasting |