Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10032594 | High efficiency hollow cathode and cathode system applying same | Wonho Choe, Youbong Lim, Jooyoung Park, Jongho Seon | 2018-07-24 |
HK
Holak Kim
Overall (All Time): #2,900,971 of 4,157,543Top 70%
1
Patents All Time