DG

David C. Groom

📍 Totnes, GB: #6 of 18 inventorsTop 35%
Overall (All Time): #2,347,582 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4628241 Start-up control method and apparatus for polyphae induction motor Raymond E. Bristow, Michael Fitzpatrick 1986-12-09
4581568 Method and apparatus for automatically setting the demand phase lag input to an induction-motor power factor controller Michael Fitzpatrick, Raymond E. Bristow 1986-04-08