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Benjamin K. Wiersum

📍 Bolingbrook, IL: #300 of 491 inventorsTop 65%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #4,147,419 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10469949 Loudspeaker impedance matching device for non-permanent applications — 2019-11-05