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Patents Grants
last 30 patents
Information
Patent Grant
Railway vehicle with aerodynamic lift control device
Patent number
11,718,182
Issue date
Aug 8, 2023
CRRC Qingdao Sifang Co., Ltd.
Sansan Ding
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Waste exhaust ventilation door automatic control device and vehicle...
Patent number
11,383,740
Issue date
Jul 12, 2022
CRRC QINGDAO SIFANG CO., LTD.
Shuanbao Yao
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Phase-change energy storage air duct and automobile air conditionin...
Patent number
11,230,158
Issue date
Jan 25, 2022
CRRC Qingdao Sifang Co., Ltd.
Shaoqing Liu
B60 - VEHICLES IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
RAILWAY VEHICLE WITH AERODYNAMIC LIFT CONTROL DEVICE
Publication number
20230031854
Publication date
Feb 2, 2023
CRRC QINGDAO SIFANG CO., LTD.
Sansan DING
B60 - VEHICLES IN GENERAL
Information
Patent Application
WASTE EXHAUST VENTILATION DOOR AUTOMATIC CONTROL DEVICE AND VEHICLE...
Publication number
20200156668
Publication date
May 21, 2020
CRRC QINGDAO SIFANG CO., LTD.
Shuanbao Yao
B60 - VEHICLES IN GENERAL
Information
Patent Application
PHASE-CHANGE ENERGY STORAGE AIR DUCT AND AUTOMOBILE AIR CONDITIONIN...
Publication number
20190217680
Publication date
Jul 18, 2019
CRRC QINGDAO SIFANG CO., LTD.
Shaoqing LIU
B60 - VEHICLES IN GENERAL