| Patent | Date |
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Accommodating visually handicapped in elevator up-peak channeling
Grant 6,152,265 - Bittar , et al. November 28, 2 | 2000-11-28 |
Elevator system having high rise elevator without express zone
Grant 5,969,304 - Barker , et al. October 19, 1 | 1999-10-19 |
Integrated, multi-level elevator shuttle
Grant 5,924,524 - Barker , et al. July 20, 1 | 1999-07-20 |
Pretorque to unload elevator car/floor locks before retraction
Grant 5,862,886 - Bennett , et al. January 26, 1 | 1999-01-26 |
Horizontal and vertical passenger transport
Grant 5,861,586 - McCarthy , et al. January 19, 1 | 1999-01-19 |
Fail-safe movement of elevator cabs between car frames and landings
Grant 5,829,553 - Wan , et al. November 3, 1 | 1998-11-03 |
Synchronizing elevator arrival at a level of a building
Grant 5,785,153 - Powell , et al. July 28, 1 | 1998-07-28 |
Transferring elevator cabs between non-contiguous hoistways
Grant 5,773,772 - McCarthy , et al. June 30, 1 | 1998-06-30 |
Synchronized off-shaft loading of elevator cabs
Grant 5,758,748 - Barker , et al. June 2, 1 | 1998-06-02 |
Elevator shuttle with auxiliary elevators at terminals
Grant 5,752,585 - Bittar , et al. May 19, 1 | 1998-05-19 |
Power and communication for elevator car without traveling cable
Grant 5,732,795 - McCarthy , et al. March 31, 1 | 1998-03-31 |
Flywheel energy storage for operating elevators
Grant 5,712,456 - McCarthy , et al. January 27, 1 | 1998-01-27 |
Elevator cabs transferred horizontally between double deck elevators
Grant 5,660,249 - Powell , et al. August 26, 1 | 1997-08-26 |
Elevator shuttle employing horizontally transferred cab
Grant 5,657,835 - Bittar August 19, 1 | 1997-08-19 |
Emergency elevator cab commandeering shuttle
Grant 5,655,625 - Barker , et al. August 12, 1 | 1997-08-12 |
Synchronous elevator shuttle system
Grant 5,651,426 - Bittar , et al. July 29, 1 | 1997-07-29 |
Maintaining communications and power during transfer of horizontally moveable elevator cab
Grant 5,601,156 - McCarthy , et al. February 11, 1 | 1997-02-11 |
Elevator swing car assignment to plural groups
Grant 5,480,005 - Bittar January 2, 1 | 1996-01-02 |
Elevator swing car service of interrise hall calls
Grant 5,460,245 - Bittar October 24, 1 | 1995-10-24 |
Cyclically varying an elevator car's assigned group in a system where each group has a separate lobby corridor
Grant 5,300,739 - Bittar April 5, 1 | 1994-04-05 |
Selectable notification time indicating elevator car arrival
Grant 5,271,484 - Bahjat , et al. December 21, 1 | 1993-12-21 |
Elevator motion profile selection
Grant 5,266,757 - Krapek , et al. November 30, 1 | 1993-11-30 |
Automated selection of high traffic intensity algorithms for up-peak period
Grant 5,168,133 - Bahjat , et al. December 1, 1 | 1992-12-01 |
Elevator hall traffic sensor housing
Grant D325,355 - Meguerdichian , et al. April 14, 1 | 1992-04-14 |
Weighted relative system response elevator car assignment system with variable bonuses and penalties
Grant 4,815,568 - Bittar March 28, 1 | 1989-03-28 |
Relative system response elevator call assignments
Grant 4,363,381 - Bittar December 14, 1 | 1982-12-14 |
Elevator motor/generator run protocol
Grant 4,349,087 - Bittar , et al. September 14, 1 | 1982-09-14 |
Variable elevator up peak dispatching interval
Grant 4,305,479 - Bittar , et al. December 15, 1 | 1981-12-15 |
Empty elevator car determination
Grant 4,299,309 - Bittar , et al. November 10, 1 | 1981-11-10 |
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