Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4723202 | Converter-fed AC machine without damper winding | — | 1988-02-02 |
| 4476424 | Variable speed induction motor drive system | — | 1984-10-09 |
| 4445081 | Leading power factor induction motor device | Graham W. McLean | 1984-04-24 |