DF

Douglas G. Fent

AT AT&T: 2 patents #7,280 of 18,772Top 40%
📍 San Mateo, CA: #2,014 of 3,727 inventorsTop 55%
🗺 California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,269,776 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5703471 Battery protection circuitry for limiting charging parameters of a battery plant Norma K. Bullock 1997-12-30
5623195 Apparatus and method for controlling a charging voltage of a battery based on battery temperature Norma K. Bullock, Trung Van Nguyen 1997-04-22