DD

Donald Charles Duncan

DU Dunham-Bush: 1 patents #5 of 23Top 25%
📍 Pomona, CA: #95 of 321 inventorsTop 30%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,313,232 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5174125 Device for detecting loss of refrigerant in an airconditioner — 1992-12-29
4727907 Turbulator with integral flow deflector tabs — 1988-03-01