JinKyu Ryu

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Incheon, KR

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Patents Grantslast 30 patents

Information Patent Grant
Elevator door stopping device
- Patent number 9,783,392
- Issue date Oct 10, 2017
- Otis Elevator Company
- Jung Sam Kim
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
Elevator Door Stopping Device
- Publication number 20160009529
- Publication date Jan 14, 2016
- Otis Elevator Company
- Jung Sam Kim
- B66 - HOISTING LIFTING HAULING