SC

Soung Whan Chung

📍 Gaegun-myeon, KR: #5 of 35 inventorsTop 15%
Overall (All Time): #1,577,470 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7583140 Output circuit of vacuum-tube amplifier — 2009-09-01
7583141 Output circuit of vacuum-tube amplifier — 2009-09-01
7355475 Output circuit of vacuum-tube amplifier — 2008-04-08