Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6555952 | Electron gun and cathode ray tube using the same | Duk-sung Park, Sang Kyun Kim, Bong-Wook Jung | 2003-04-29 |
CC
Chul-sik Cho
Overall (All Time): #3,509,840 of 4,157,543Top 85%
1
Patents All Time