Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4398087 | Fluid signal square root extractor | Louis J. Crum, William J. Riebe | 1983-08-09 |
| 4325427 | Dual thermostat control apparatus with dead band response | Thomas M. Holloway | 1982-04-20 |
| 4283007 | Multiple load integrated fluid control units | Richard N. Laakaniemi, Paul E. Wichman | 1981-08-11 |
| 4263931 | Multiple load integrated fluid control units | Richard N. Laakaniemi, Paul E. Wichman | 1981-04-28 |
| 4199101 | Multiple load integrated fluid control units | Richard N. Laakaniemi, Paul E. Wichman | 1980-04-22 |