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Kai Kang
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Tianjin, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Elevator balance weight rescue device, an elevator and an elevator...
Patent number
11,492,232
Issue date
Nov 8, 2022
Otis Elevator Company
Qing Li
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Guide device and elevator system
Patent number
11,358,833
Issue date
Jun 14, 2022
Otis Elevator Company
Qing Li
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Stabilizing device of elevator car and a control method thereof, an...
Patent number
11,142,431
Issue date
Oct 12, 2021
Otis Elevator Company
Qing Li
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
End-fastening apparatus for lifting rope and elevator system using...
Patent number
11,124,387
Issue date
Sep 21, 2021
Otis Elevator Company
Kai Kang
B66 - HOISTING LIFTING HAULING
Patents Applications
last 30 patents
Information
Patent Application
GUIDE DEVICE AND ELEVATOR SYSTEM
Publication number
20210053796
Publication date
Feb 25, 2021
Otis Elevator Company
Qing Li
B66 - HOISTING LIFTING HAULING
Information
Patent Application
ELEVATOR BALANCE WEIGHT RESCUE DEVICE, AN ELEVATOR AND AN ELEVATOR...
Publication number
20200055699
Publication date
Feb 20, 2020
Otis Elevator Company
Qing Li
B66 - HOISTING LIFTING HAULING
Information
Patent Application
END-FASTENING APPARATUS FOR LIFTING ROPE AND ELEVATOR SYSTEM USING...
Publication number
20190119070
Publication date
Apr 25, 2019
Otis Elevator Company
Kai Kang
B66 - HOISTING LIFTING HAULING
Information
Patent Application
STABILIZING DEVICE OF ELEVATOR CAR AND A CONTROL METHOD THEREOF, AN...
Publication number
20180194595
Publication date
Jul 12, 2018
Otis Elevator Company
Qing Li
B66 - HOISTING LIFTING HAULING