Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6606916 | Timed window ultrasonic gas meter with nose cone | Noel Bignell, Gerard Jan Jeep Berend DeGroot, Barry John Martin, Charles Malcolm Welsh, John Graeme Winter | 2003-08-19 |
| 6305233 | Digital speed determination in ultrasonic flow measurements | Noel Bignell, Charles Malcolm Welsh, Laurence Michael Besley | 2001-10-23 |
| 5553505 | Electronic fluid flow meter | Noel Bignell, Anthony Collings, Kenneth James Hews-Taylor, Barry John Martin, Charles Malcolm Welsh | 1996-09-10 |
| 4406774 | Dehydration of hydrocarbons | Donald R. Cummings | 1983-09-27 |