Inventor
CHANG XIAOYUAN
US10 patents
⚠️ This page may combine multiple inventors who share the name “CHANG XIAOYUAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OTIS ELEVATOR CO
6 patentsUS11713211B2Aug 1, 2023
Elevator belt surface protection for installation
OTIS ELEVATOR CO0 citations61
US11511970B2Nov 29, 2022
High friction and wear resistant elevator sheave liner
OTIS ELEVATOR CO0 citations61
US11407616B2Aug 9, 2022
Elevator belt surface protection for installation
OTIS ELEVATOR CO0 citations61
US11111108B2Sep 7, 2021
Coated sheave
OTIS ELEVATOR CO1 citations60
US10647547B2May 12, 2020
Methods and apparatuses for applying a substrate onto an elevator sheave
OTIS ELEVATOR CO1 citations58
US10023432B2Jul 17, 2018
Guide rail for elevator
OTIS ELEVATOR CO0 citations50