Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864214 | Solid state power controller | William W. Billings | 1989-09-05 |
| 4835652 | Bi-directional DC power controller with fault protection | William W. Billings | 1989-05-30 |
| 4816756 | Circuit and method for statically testing rotating rectifiers in brushless alternators | — | 1989-03-28 |
| 4807106 | Method and circuit for voltage regulation of DC power sources | Donal E. Baker, Roger Thornton | 1989-02-21 |
| 4797570 | Automatic paralleling of AC power sources | — | 1989-01-10 |