Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9742576 | Method for proof of play (PoP) of digital signage content | Wook HYUN, Sung Hei KIM, Shin Gak Kang | 2017-08-22 |
| 9728052 | Digital signage system and emergency alerting method using same | Wook HYUN, Sung Hei KIM, Shin Gak Kang | 2017-08-08 |