Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885518 | Induction motor torque/flux control system | — | 1989-12-05 |
| 4862054 | Tacho-less vector control adaptive system for motor drive | — | 1989-08-29 |
| 4833588 | Direct AC/AC converter system | — | 1989-05-23 |
| 4814964 | Variable speed a-c drive | John Rosa, Theodore M. Heinrich | 1989-03-21 |
| 4805082 | Regenerative two-quadrant converter | Theodore M. Heinrich | 1989-02-14 |
| 4713745 | Vector-controlled unrestricted frequency changer (UFC) system and variable speed AC motor drive using such a system | — | 1987-12-15 |
| 4707651 | Voltage-controlled field-oriented induction motor control system | — | 1987-11-17 |
| 4697131 | Voltage source inverter and variable frequency, constant voltage AC motor drive embodying the same | Theodore M. Heinrich | 1987-09-29 |
| 4648022 | Matrix converter control system | — | 1987-03-03 |
| 4642751 | Hidden DC-link AC/AC converter using bilateral power switches | — | 1987-02-10 |
| 4479082 | Motor control system | Roy Caddy | 1984-10-23 |