| Patent | Date |
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Elevator roping sway damper assembly
Grant 11,440,774 - Castro Inzunza , et al. September 13, 2 | 2022-09-13 |
Elevator System Control Based On Building Sway
App 20220267118 - Roberts; Randy ; et al. | 2022-08-25 |
Retrofitting an elevator machine with primary and secondary braking
Grant 11,377,323 - Davis, III , et al. July 5, 2 | 2022-07-05 |
Method and kit for retrofitting elevator machines with thrust bearing, and retrofitted elevator machine
Grant 11,299,374 - Davis, III , et al. April 12, 2 | 2022-04-12 |
Elevator system control based on building sway
Grant 11,292,693 - Roberts , et al. April 5, 2 | 2022-04-05 |
Cooling system for elevator with electronic visual displays
Grant 11,267,675 - Derwinski , et al. March 8, 2 | 2022-03-08 |
Elevator Cab Air Purification
App 20220049862 - Derwinski; Patricia ; et al. | 2022-02-17 |
Elevator Cab Ventilation
App 20220048738 - Derwinski; Patricia ; et al. | 2022-02-17 |
Elevator system including a protective hoistway liner assembly
Grant 11,198,589 - Copeland , et al. December 14, 2 | 2021-12-14 |
Elevator Roping Sway Damper Assembly
App 20210347607 - CASTRO INZUNZA; Cuauhtemoc ; et al. | 2021-11-11 |
Elevator car dynamic sag damping system
Grant 11,130,655 - Dube , et al. September 28, 2 | 2021-09-28 |
Mobile Interface, Communication, And Control System To Facilitate Operation Of Elevator Cars With Media Options
App 20210101778 - Castro; Cuauhtemoc ; et al. | 2021-04-08 |
Cooling System For Elevator With Electronic Visual Displays
App 20210101780 - Derwinski; Patricia ; et al. | 2021-04-08 |
Elevator System Including A Protective Hoistway Liner Assembly
App 20200283268 - COPELAND; George Scott ; et al. | 2020-09-10 |
Method And Kit For Retrofitting Elevator Machines With Thrust Bearing, And Retrofitted Elevator Machine
App 20200270100 - Davis, III; Daniel B. ; et al. | 2020-08-27 |
Elevator System Control Based On Building Sway
App 20200255260 - Kind Code | 2020-08-13 |
Method and kit for retrofitting elevator machines with thrust bearing, and retrofitted elevator machine
Grant 10,737,908 - Davis, III , et al. A | 2020-08-11 |
Retrofitting An Elevator Machine With Primary And Secondary Braking
App 20200207580 - Davis, III; Daniel B. ; et al. | 2020-07-02 |
Elevator system including a protective hoistway liner assembly
Grant 10,669,124 - Copeland , et al. | 2020-06-02 |
Retrofitting an elevator machine with primary and secondary braking
Grant 10,618,775 - Davis, III , et al. | 2020-04-14 |
Underslung elevator car configuration
Grant 10,532,910 - Qiu , et al. Ja | 2020-01-14 |
Guiding devices for elevator systems having roller guides and motion sensors
Grant 10,494,228 - Swaybill , et al. De | 2019-12-03 |
Elevator Car Dynamic Sag Damping System
App 20190210840 - Dube; Randall S. ; et al. | 2019-07-11 |
Elevator System Including A Protective Hoistway Liner Assembly
App 20180290862 - COPELAND; George Scott ; et al. | 2018-10-11 |
Sensing Elevator Car Guiding Devices For Elevator Systems
App 20180244495 - Swaybill; Bruce P. ; et al. | 2018-08-30 |
Method And Kit For Retrofitting Elevator Machines With Thrust Bearing, And Retrofitted Elevator Machine
App 20180141783 - Davis, III; Daniel B. ; et al. | 2018-05-24 |
Retrofitting An Elevator Machine With Primary And Secondary Braking
App 20180141781 - Davis, III; Daniel B. ; et al. | 2018-05-24 |
Underslung Elevator Car Configuration
App 20170297869 - QIU; Minglun ; et al. | 2017-10-19 |
Underslung elevator car configuration
Grant 9,701,515 - Qiu , et al. July 11, 2 | 2017-07-11 |
Underslung Elevator Car Configuration
App 20110056770 - Qiu; Minglun ; et al. | 2011-03-10 |
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