DH

David Hargrave

Ford: 1 patents #9,341 of 17,473Top 55%
📍 Tustin, CA: #555 of 1,327 inventorsTop 45%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,256,034 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6006878 Torque converter bypass clutch having elastically flexible piston Fraser J. Macdonald 1999-12-28
5023989 Tool for repairing pop-up sprinklers — 1991-06-18