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Qingdao, Shandong, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Activation control method and apparatus for railway train
Patent number
11,738,782
Issue date
Aug 29, 2023
CRRC QINGDAO SIFANG CO., LTD.
Xingguo Li
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Activation apparatus of railway vehicle and railway vehicle having...
Patent number
11,247,704
Issue date
Feb 15, 2022
CRRC QINGDAO SIFANG CO., LTD.
Huiqing Zhang
B61 - RAILWAYS
Information
Patent Grant
Method, system and device for controlling door of railway vehicle
Patent number
11,125,006
Issue date
Sep 21, 2021
CRRC Qingdao Sifang Co., Ltd.
Bo Chen
B61 - RAILWAYS
Information
Patent Grant
Alarming and unlocking device
Patent number
10,464,524
Issue date
Nov 5, 2019
CRRC QINGDAO SIFANG CO., LTD.
Bo Chen
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Method and device for transmitting signal among compartments of train
Patent number
10,207,725
Issue date
Feb 19, 2019
CRRC QINGDAO SIFANG CO., LTD.
Miao Wang
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Switching circuit for implementing coupling at random end of train
Patent number
9,682,714
Issue date
Jun 20, 2017
CRRC QINGDAO SIFANG CO., LTD.
Qiang Xu
B60 - VEHICLES IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
Activation Apparatus of Railway Vehicle and Railway Vehicle Having...
Publication number
20210221408
Publication date
Jul 22, 2021
CRRC QINGDAO SIFANG CO., LTD.
Huiqing ZHANG
B61 - RAILWAYS
Information
Patent Application
TRAIN
Publication number
20210221229
Publication date
Jul 22, 2021
Miao WANG
B60 - VEHICLES IN GENERAL
Information
Patent Application
Activation Control Method and Apparatus for Railway Train
Publication number
20210221406
Publication date
Jul 22, 2021
CRRC QINGDAO SIFANG CO., LTD.
Xingguo LI
B60 - VEHICLES IN GENERAL
Information
Patent Application
Method, Device and System for Controlling Fuel Cell and Rail Vehicle
Publication number
20190305348
Publication date
Oct 3, 2019
CRRC QINGDAO SIFANG CO., LTD.
Donghua WU
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
METHOD, SYSTEM AND DEVICE FOR CONTROLLING DOOR OF RAILWAY VEHICLE
Publication number
20190024436
Publication date
Jan 24, 2019
CRRC QINGDAO SIFANG CO., LTD.
Bo Chen
B61 - RAILWAYS
Information
Patent Application
ALARMING AND UNLOCKING DEVICE
Publication number
20190023222
Publication date
Jan 24, 2019
CRRC QINGDAO SIFANG CO., LTD.
Bo CHEN
B60 - VEHICLES IN GENERAL
Information
Patent Application
SWITCHING CIRCUIT FOR IMPLEMENTING COUPLING AT RANDOM END OF TRAIN
Publication number
20170066455
Publication date
Mar 9, 2017
CRRC QINGDAO SIFANG CO., LTD.
Qiang XU
B60 - VEHICLES IN GENERAL
Information
Patent Application
METHOD AND DEVICE FOR TRANSMITTING SIGNAL AMONG COMPARTMENTS OF TRAIN
Publication number
20170057525
Publication date
Mar 2, 2017
CRRC QINGDAO SIFANG CO., LTD.
Miao WANG
B61 - RAILWAYS