HuaLiang Xu

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Hangzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Lifting device for building steel structure hoistway and method for...
- Patent number 11,993,485
- Issue date May 28, 2024
- Otis Elevator Company
- Hualiang Xu
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Safety control device for handrail, conveyor system and safety cont...
- Patent number 11,192,756
- Issue date Dec 7, 2021
- Otis Elevator Company
- Hai Cui
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
LIFTING DEVICE FOR BUILDING STEEL STRUCTURE HOISTWAY AND METHOD FOR...
- Publication number 20240067503
- Publication date Feb 29, 2024
- Otis Elevator Company
- Hualiang Xu
- B66 - HOISTING LIFTING HAULING
Information Patent Application
SAFETY CONTROL DEVICE FOR HANDRAIL, CONVEYOR SYSTEM AND SAFETY CONT...
- Publication number 20210300730
- Publication date Sep 30, 2021
- Otis Elevator Company
- Hai Cui
- B66 - HOISTING LIFTING HAULING