Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Controlling speed of an elevator using a speed reducing switch and governor

Controlling speed of an elevator using a speed reducing switch and governor

US Patent 9708157 · Granted Jul 18, 2017

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Retrofitted hoist machine2023
Elevator system suspension member2022
Stop sequencing for braking device2016
Integrated support for elevator machine, sheaves and terminations2012
Elevator system control providing specialized service features and individual lo2011
Elevator system control providing specialized service features to facilitate a p2011
System for remotely communicating voice and data to and from an elevator control2004
Elevator guide rail mounting assembly2002
Remote rescue of trapped elevator passengers2002
Elevator rescue system2001
Elevator rescue system2001
Remote monitoring of elevator cab lights2000