Fengkun Zhu

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Tianjin, CN

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Patents Grantslast 30 patents

Information Patent Grant
Traction machine assembly and elevator
- Patent number 11,702,321
- Issue date Jul 18, 2023
- Otis Elevator Company
- RuGuang Liu
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Brake disc releasing device, turning device, elevator rescue kit an...
- Patent number 11,667,495
- Issue date Jun 6, 2023
- Otis Elevator Company
- FengKun Zhu
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
BRAKE DISC RELEASING DEVICE, TURNING DEVICE, ELEVATOR RESCUE KIT AN...
- Publication number 20230242377
- Publication date Aug 3, 2023
- Otis Elevator Company
- FengKun Zhu
- B66 - HOISTING LIFTING HAULING
Information Patent Application
BRAKE DISC RELEASING DEVICE, TURNING DEVICE, ELEVATOR RESCUE KIT AN...
- Publication number 20190337760
- Publication date Nov 7, 2019
- Otis Elevator Company
- FengKun Zhu
- B66 - HOISTING LIFTING HAULING
Information Patent Application
TRACTION MACHINE ASSEMBLY AND ELEVATOR
- Publication number 20190210841
- Publication date Jul 11, 2019
- Otis Elevator Company
- RuGuang Liu
- B66 - HOISTING LIFTING HAULING