Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6188204 | Brushless AC field system for stable frequency variable speed alternators | John J. Vithayathil | 2001-02-13 |
| 6051953 | Brushless exciterless field system for AC synchronous machines | — | 2000-04-18 |
| 5012148 | AC machine system with induced DC field | — | 1991-04-30 |