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Harold Duffy

UF US Air Force: 3 patents #2,296 of 16,312Top 15%
MW Mind Wurx: 1 patents #4 of 4Top 100%
📍 Ridgecrest, CA: #83 of 555 inventorsTop 15%
🗺 California: #93,399 of 386,348 inventorsTop 25%
Overall (All Time): #872,817 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
7445215 Theft defeating improvements for shopping carts James G. Prather, Patrick Maandag 2008-11-04
6271755 Shopping cart with improved theft disabling device James G. Prather, Miguel Orozco, Patrick Maandag 2001-08-07
6054923 Shopping cart with theft disabling device James G. Prather, Patrick Maandag 2000-04-25
5666108 Telemetry data selector method 1997-09-09
5270705 Telemetry data word selector and processor 1993-12-14
H241 Programmable telemetry word selector 1987-03-03