Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4691808 | Adaptive assignment of elevator car calls | Isabel Hovey | 1987-09-08 |
| 4632224 | Multicompartment elevator call assigning | John C. Luce | 1986-12-30 |
| 4379499 | Emergency power elevator recovery and service system | — | 1983-04-12 |
| 4352412 | Elevator express priority service | Joseph Bittar | 1982-10-05 |
| 4352410 | Operational control of elevator car calls | Joseph Bittar | 1982-10-05 |
| 4352411 | Elevator floor cutoff | Joseph Bittar | 1982-10-05 |
| 4349087 | Elevator motor/generator run protocol | Joseph Bittar | 1982-09-14 |