FH

Frank W. Heemstra

UF US Air Force: 2 patents #3,473 of 16,312Top 25%
📍 Fort Washington, MD: #28 of 120 inventorsTop 25%
🗺 Maryland: #13,387 of 35,612 inventorsTop 40%
Overall (All Time): #2,349,189 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4603295 Two-headed DC magnetic target proximity sensor — 1986-07-29
4488113 Magnetic bridge proximity sensor — 1984-12-11