RK

Ralph R. Karsten

📍 Windom, MN: #813 of 2,819 inventorsTop 30%
🗺 Minnesota: #15,886 of 52,454 inventorsTop 35%
Overall (All Time): #1,150,480 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10886857 Inhibiting noise coupling across isolated power supplies — 2021-01-05
10469042 Audio amplifier circuit — 2019-11-05
6242977 Amplifier and preamplifier circuit — 2001-06-05
4719431 Audio power amplifier — 1988-01-12