Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5880415 | Automatic calibration of current regulator control compensation for an elevator motor drive with locked rotor | Alberto Vecchiotti, Leslie Lamontagne | 1999-03-09 |
| 5880416 | Automatic calibration of motor speed loop gain for an elevator motor control | Alberto Vecchiotti | 1999-03-09 |
| 5821656 | Magnetic bearing with reduced control-flux-induced rotor loss | Zbigniew Piech | 1998-10-13 |
| 5814774 | Elevator system having a force-estimation or position-scheduled current command controller | Timothy M. Remmers, Randall Keith Roberts, Rajesh Rajamani | 1998-09-29 |
| 5379864 | Magnetic system for elevator car lateral suspension | — | 1995-01-10 |