Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4636702 | Energy economizer controlled-current start and protection for induction motors | — | 1987-01-13 |
| 4414499 | Motor protecting improved energy economizer for induction motors | — | 1983-11-08 |
| 4382223 | Voltage and frequency-controlled AC wave modifier | — | 1983-05-03 |
| 4341984 | Electronic commutation for direct current electric motors | Louis W. Parker | 1982-07-27 |
| 4297628 | Energy economizer for induction motors | — | 1981-10-27 |
| 4242625 | Energy economizer for polyphase induction motors | — | 1980-12-30 |
| 4190793 | Energy economizer for induction motors | Louis W. Parker | 1980-02-26 |