FJ

Frank W. Johnson

📍 Nevada City, CA: #71 of 174 inventorsTop 45%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,310,876 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5134281 Microbend optic sensor with fiber being sewn thereto in a sinuously looped disposition Earl L. Bryenton, Menno Stoffels, Alan Bryenton 1992-07-28
4779777 Support bracket for metal detector Maurice E. Friedmann 1988-10-25