Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5831379 | Directly heated cathode structure | Bong-uk Jeong, Chang-Seob Kim, Dong-Gil Jang | 1998-11-03 |
SS
Seok-Bong Shon
Overall (All Time): #3,701,778 of 4,157,543Top 90%
1
Patents All Time