Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6259242 | Apparatus incorporating a sensing conduit in conductive material and method of use thereof for sensing and characterizing particles | Marshall D. Graham | 2001-07-10 |
| 6175227 | Potential-sensing method and apparatus for sensing and characterizing particles by the Coulter principle | Marshall D. Graham, Gerry Graham, Ted W. Britton, John Geoffrey Harfield, James S. King | 2001-01-16 |
| 4921206 | Snap-together solenoid operated pinch valve assembly | Ian D. Gilbert, Ervin Fayer, George G. Dominick, Avelino De Oliveira | 1990-05-01 |
| 4797624 | Method and apparatus for editing particle produced electrical pulses | John Geoffrey Harfield, Paul Knight, Harvey Podgorney | 1989-01-10 |