Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7564499 | Illumination device for video presenter and video presenter having the same | Yong Gyu Yoon, Seung Yeob Lee | 2009-07-21 |
| 5929910 | Video overhead display system | Jun Ho Kim, Seung Yeob Lee | 1999-07-27 |
| 5757519 | Video presenter with detachable lower illumination case | — | 1998-05-26 |