Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8743278 | Portable magnifying apparatus having multi angular positioned handle | Yang Taik Yoon, Kyeong Seon Choi, Sang Jun Lee, Il Hyung Kim | 2014-06-03 |
| 8194154 | Portable video magnifying apparatus | Yang Taik Yoon, Kyeong Seon Choi, Il Hyung Kim | 2012-06-05 |