Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6457778 | Electro-power impact cell for plasma blasting | Kie Hyung Chung, Kang Ok Lee, Chul Yeong Kim, Kyoung-Jae Chung | 2002-10-01 |
| 6455808 | Pulse power system | Kie Hyung Chung, Kang Ok Lee, Chul Yeong Kim, Kyoung-Jae Chung | 2002-09-24 |