P

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 patents
US7350883B2Apr 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 patents

FARGO RICHARD N

2 patents

REBILLARD PASCAL

1 patent

LSI LOGIC CORP

1 patent