Inventor
ZHAO CHEN QIAN
US14 patents
⚠️ This page may combine multiple inventors who share the name “ZHAO CHEN QIAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OTIS ELEVATOR CO
12 patentsUS10549952B2Feb 4, 2020
Self-extinguishing fabric belt for elevator system
OTIS ELEVATOR CO6 citations82
US11117784B2Sep 14, 2021
Hybrid fiber tension member for elevator system belt
OTIS ELEVATOR CO4 citations72
US10214385B2Feb 26, 2019
Elevator brake wedge
OTIS ELEVATOR CO5 citations72
US11655120B2May 23, 2023
Elevator load bearing member including a unidirectional weave
OTIS ELEVATOR CO2 citations71
US10604379B2Mar 31, 2020
Elevator system belt with fabric tension member
OTIS ELEVATOR CO2 citations71
US11945689B2Apr 2, 2024
Elevator load bearing member including a unidirectional weave
OTIS ELEVATOR CO0 citations60
US11459209B2Oct 4, 2022
Light weight load bearing member for elevator system
OTIS ELEVATOR CO1 citations60
US11427439B2Aug 30, 2022
Tension member for elevator system belt
OTIS ELEVATOR CO0 citations60
US11332343B2May 17, 2022
Tension member for elevator system belt
OTIS ELEVATOR CO0 citations60
US11274017B2Mar 15, 2022
Belt with self-extinguishing layer and method of making
OTIS ELEVATOR CO1 citations60
US10556776B2Feb 11, 2020
Lightweight elevator traveling cable
OTIS ELEVATOR CO0 citations50
US10767077B2Sep 8, 2020
Load-bearing member surface treatment
OTIS ELEVATOR CO0 citations39