Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4787253 | Electronic display flow meter | Robert J. deFasselle, David E. Kent | 1988-11-29 |
| 4500759 | Fluid flow switch | Robert J. deFasselle | 1985-02-19 |
| 4489614 | Flowmeter | Robert J. deFasselle | 1984-12-25 |
| 4361051 | Flowmeter | Robert J. deFasselle | 1982-11-30 |