Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4476408 | High efficiency, low cost permanent magnet AC machine | — | 1984-10-09 |
| 4388545 | Rotor for a permanent magnet AC motor | Russell E. Tompkins | 1983-06-14 |
| 4286188 | Amorphous metal hysteresis motor | Russell E. Tompkins | 1981-08-25 |