Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4776434 | Method and apparatus for smoothly stopping an elevator car at a target floor | — | 1988-10-11 |
| 4754850 | Method for providing a load compensation signal for a traction elevator system | — | 1988-07-05 |
| 4738337 | Method and apparatus for providing a load compensation signal for a traction elevator system | — | 1988-04-19 |
| 4717865 | Transportation apparatus | — | 1988-01-05 |
| 4656572 | PWM inverter | Alan L. Husson, Kenneth K L Lee | 1987-04-07 |
| 4600865 | Transportation apparatus | — | 1986-07-15 |
| 4515247 | Elevator system | — | 1985-05-07 |
| 4507607 | Angular accelerometer | — | 1985-03-26 |
| 4440024 | Tachogenerator | Jitendra K. Trivedi | 1984-04-03 |
| 4434874 | Elevator system | — | 1984-03-06 |
| 4433756 | Elevator system | Alan L. Husson | 1984-02-28 |
| 4432439 | Elevator system | Masami Nomura | 1984-02-21 |
| 4373612 | Elevator system | Alan L. Husson | 1983-02-15 |
| 4308936 | Elevator system | John J. De Lorenzi | 1982-01-05 |
| 4307793 | Elevator system | — | 1981-12-29 |
| 4286222 | Timing waveform generator | — | 1981-08-25 |