JH

John Geoffrey Harfield

CE Coulter Electronics: 1 patents #54 of 117Top 50%
CO Coulter: 1 patents #63 of 155Top 45%
📍 Flitwick, GB: #9 of 28 inventorsTop 35%
Overall (All Time): #2,221,859 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6175227 Potential-sensing method and apparatus for sensing and characterizing particles by the Coulter principle Marshall D. Graham, Harvey J. Dunstan, Gerry Graham, Ted W. Britton, James S. King 2001-01-16
4797624 Method and apparatus for editing particle produced electrical pulses Harvey J. Dunstan, Paul Knight, Harvey Podgorney 1989-01-10