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Tianjin, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Brake device, a test method for the brake device and an elevator sy...
Patent number
11,505,426
Issue date
Nov 22, 2022
Otis Elevator Company
GuoSong Li
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Patents Applications
last 30 patents
Information
Patent Application
FAULT MONITORING DEVICE AND METHOD FOR ELEVATOR MOTOR
Publication number
20230278829
Publication date
Sep 7, 2023
Otis Elevator Company
Hua Zhou
B66 - HOISTING LIFTING HAULING
Information
Patent Application
BRAKE, METHOD FOR DETERMINING ITS STATE, TRACTION MACHINE AND ELEVA...
Publication number
20220281713
Publication date
Sep 8, 2022
Otis Elevator Company
Guosong Li
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ELEVATOR BRAKE WEAR DETECTION METHOD, DETECTION DEVICE AND ELEVATOR...
Publication number
20220281717
Publication date
Sep 8, 2022
Otis Elevator Company
Guosong Li
B66 - HOISTING LIFTING HAULING
Information
Patent Application
SELF-CHECKING DEVICE AND METHOD FOR ELEVATOR BRAKING DEVICE AND ELE...
Publication number
20220194740
Publication date
Jun 23, 2022
Otis Elevator Company
Guosong Li
B66 - HOISTING LIFTING HAULING
Information
Patent Application
BRAKE DEVICE FOR ELEVATOR SYSTEM AND A TEST METHOD THEREOF
Publication number
20210130126
Publication date
May 6, 2021
Otis Elevator Company
GuoSong Li
B66 - HOISTING LIFTING HAULING
Information
Patent Application
BRAKE DEVICE, A TEST METHOD FOR THE BRAKE DEVICE AND AN ELEVATOR SY...
Publication number
20200180906
Publication date
Jun 11, 2020
Otis Elevator Company
GuoSong Li
B66 - HOISTING LIFTING HAULING