Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7252159 | Underwater rock boring apparatus having differential global positioning system receiver and boring method thereof | Jong Seol Kim, Dae Woo Kang | 2007-08-07 |
| 7032978 | Crushing method using large boreholes in underwater rock | Jong Seol Kim, Dae Woo Kang | 2006-04-25 |