Inventor
HUBBARD JAMES L
US27 patents
⚠️ This page may combine multiple inventors who share the name “HUBBARD JAMES L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OTIS ELEVATOR CO
19 patentsUS7350883B2Apr 1, 2008
Detecting elevator brake and other dragging by monitoring motor current
OTIS ELEVATOR CO22 citations88
US10766746B2Sep 8, 2020
Friction liner and traction sheave
OTIS ELEVATOR CO6 citations82
US10214382B2Feb 26, 2019
Disk damping device
OTIS ELEVATOR CO5 citations73
US10017356B2Jul 10, 2018
Sheet metal guide rail for an elevator system
OTIS ELEVATOR CO6 citations72
US11492230B2Nov 8, 2022
Sheave liner including wear indicators
OTIS ELEVATOR CO0 citations62
US10273119B2Apr 30, 2019
Elevator load weighing system
OTIS ELEVATOR CO1 citations62
US11718501B2Aug 8, 2023
Elevator sheave wear detection
OTIS ELEVATOR CO0 citations61
US11254544B2Feb 22, 2022
Friction liner and traction sheave
OTIS ELEVATOR CO0 citations61
US11377323B2Jul 5, 2022
Retrofitting an elevator machine with primary and secondary braking
OTIS ELEVATOR CO0 citations59
US11299374B2Apr 12, 2022
Method and kit for retrofitting elevator machines with thrust bearing, and retrofitted elevator machine
OTIS ELEVATOR CO0 citations59
US10618775B2Apr 14, 2020
Retrofitting an elevator machine with primary and secondary braking
OTIS ELEVATOR CO1 citations59
US12214994B2Feb 4, 2025
Brake disc releasing device, turning device, elevator rescue kit and method
OTIS ELEVATOR CO0 citations58
US11667495B2Jun 6, 2023
Brake disc releasing device, turning device, elevator rescue kit and method
OTIS ELEVATOR CO0 citations58
US10442659B2Oct 15, 2019
Electromagnetic brake system for elevator application
OTIS ELEVATOR CO0 citations52
US12054359B1Aug 6, 2024
Roller guide mounted elevator monitoring systems
OTIS ELEVATOR CO0 citations51
US10081518B2Sep 25, 2018
Elevator machine and stator support structure
OTIS ELEVATOR CO0 citations50
US12434943B2Oct 7, 2025
Beam climber active brake health monitoring system
OTIS ELEVATOR CO0 citations49
US10737908B2Aug 11, 2020
Method and kit for retrofitting elevator machines with thrust bearing, and retrofitted elevator machine
OTIS ELEVATOR CO0 citations49
US10141817B2Nov 27, 2018
Cooling of machine for elevator system
OTIS ELEVATOR CO0 citations45
HUBBARD JAMES L
4 patentsUS9791009B2Oct 17, 2017
Brake torque monitoring and health assessment
HUBBARD JAMES L8 citations79
US4030162AJun 21, 1977
Food processing apparatus
HUBBARD JAMES L17 citations72
US8839911B2Sep 23, 2014
Elevator machine frame with noise reducing configuration
HUBBARD JAMES L3 citations57
US10000366B2Jun 19, 2018
Brake torque control
HUBBARD JAMES L1 citations51