YuHang Ou

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Hangzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Elevator safety clamp control device, elevator safety apparatus and...
- Patent number 12,049,384
- Issue date Jul 30, 2024
- Otis Elevator Company
- Yuhang Ou
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Stabilizing device of elevator car
- Patent number 10,737,907
- Issue date Aug 11, 2020
- Otis Elevator Company
- Junjie Guo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Rust removing device for elevator guide rail
- Patent number 10,246,297
- Issue date Apr 2, 2019
- Otis Elevator Company
- YuHang Ou
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
ELEVATOR SAFETY CLAMP CONTROL DEVICE, ELEVATOR SAFETY APPARATUS AND...
- Publication number 20240067499
- Publication date Feb 29, 2024
- Otis Elevator Company
- Yuhang Ou
- B66 - HOISTING LIFTING HAULING
Information Patent Application
STABILIZING DEVICE OF ELEVATOR CAR
- Publication number 20180127238
- Publication date May 10, 2018
- Otis Elevator Company
- Junjie Guo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
RUST REMOVING DEVICE FOR ELEVATOR GUIDE RAIL
- Publication number 20160325967
- Publication date Nov 10, 2016
- Otis Elevator Company
- YuHang Ou
- B66 - HOISTING LIFTING HAULING