Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7012858 | Method for checking the existence of an optical disk using a focusing signal | Hong Jo Jeong | 2006-03-14 |
HN
Hyeong-Chull Na
Overall (All Time): #3,410,414 of 4,157,543Top 85%
1
Patents All Time