GuoChen Gao

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Tianjin, CN

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Patents Grantslast 30 patents

Information Patent Grant
Friction material and preparation method therefor, and friction part
- Patent number 11,885,387
- Issue date Jan 30, 2024
- Otis Elevator Company
- Ruguang Liu
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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 device for elevator and an elevator system
- Patent number 10,975,927
- Issue date Apr 13, 2021
- Otis Elevator Company
- Zixu Zhang
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Brake for elevator and a replacement method of damper of the brake...
- Patent number 10,288,135
- Issue date May 14, 2019
- Otis Elevator Company
- Yatao Li
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
ELEVATOR BRAKING DEVICE AND ELEVATOR SYSTEM
- Publication number 20240067498
- Publication date Feb 29, 2024
- Otis Elevator Company
- Zhengzong Tang
- B66 - HOISTING LIFTING HAULING
Information Patent Application
FRICTION MATERIAL AND PREPARATION METHOD THEREFOR, AND FRICTION PART
- Publication number 20230134070
- Publication date May 4, 2023
- Otis Elevator Company
- Ruguang Liu
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
ELECTROMAGNETIC DEVICE FOR ELEVATOR BRAKE, ELEVATOR BRAKE AND ELEVA...
- Publication number 20230022165
- Publication date Jan 26, 2023
- Otis Elevator Company
- Guochen Gao
- B66 - HOISTING LIFTING HAULING
Information Patent Application
BRAKE DEVICE FOR ELEVATOR AND AN ELEVATOR SYSTEM
- Publication number 20200056666
- Publication date Feb 20, 2020
- Otis Elevator Company
- Zixu Zhang
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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
Information Patent Application
BRAKE FOR ELEVATOR AND A REPLACEMENT METHOD OF DAMPER OF THE BRAKE...
- Publication number 20170299003
- Publication date Oct 19, 2017
- Otis Elevator Company
- Yatao Li
- B66 - HOISTING LIFTING HAULING