Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4472022 | Vortex flowmeter | Richard H. Barnard, Terence P. Stock | 1984-09-18 |
| 4446744 | Ultrasonic flowmeter | — | 1984-05-08 |
| 4206642 | Flowmeter | — | 1980-06-10 |
| 4185498 | Flowmeter | Christopher A. Watson, Michael Bronzite, Alan Palmer | 1980-01-29 |