Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4395671 | Control system and method for motor starting | Robert G. Bristol | 1983-07-26 |
| 4323861 | Oscillator circuit for controlling the power level of a microwave oven | Walter R. Spofford, Charles E. Scott | 1982-04-06 |
| 4314197 | Alternating current power control circuit | Walter R. Spofford, Charles E. Scott | 1982-02-02 |
| 4225896 | Crest firing means | — | 1980-09-30 |
| 4221125 | Apparatus and method for detecting the presence of a substance on a liquid surface | John N. Oliver | 1980-09-09 |