Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5900692 | Indirect cathode sleeve | Gil-Young Jung, Gong S. Park, Byeong Doo Ko, Hun Gun Park | 1999-05-04 |
| 5569391 | Indirect cathode sleeve manufacturing method | Gil-Young Jung, Gong S. Park, Byeong Doo Ko, Hun Gun Park | 1996-10-29 |