JH

John R. Hjelm

📍 Minneapolis, MN: #3,628 of 6,114 inventorsTop 60%
🗺 Minnesota: #32,449 of 52,454 inventorsTop 65%
Overall (All Time): #3,881,942 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5036292 Decoupled electrolytic capacitor Richard D. Larson 1991-07-30