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Patents Grants
last 30 patents
Information
Patent Grant
Suspension frame assembly of magnetic levitation vehicle
Patent number
11,577,614
Issue date
Feb 14, 2023
CRRC Qingdao Sifang Co., Ltd.
Xiankai Liu
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Method for producing a hollow support from a fiber composite materi...
Patent number
11,331,865
Issue date
May 17, 2022
CRRC QINGDAO SIFANG CO., LTD.
Sansan Ding
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Double-decker rail vehicle
Patent number
11,180,167
Issue date
Nov 23, 2021
CRRC Qingdao Sifang Co., Ltd.
Xiaojun Deng
B61 - RAILWAYS
Information
Patent Grant
Rail transit braking energy recovery system and hybrid power rail t...
Patent number
11,052,774
Issue date
Jul 6, 2021
CRRC Qingdao Sifang Co., Ltd.
Xu Zhang
B60 - VEHICLES IN GENERAL
Information
Patent Grant
System and method for suppressing the serpentine instability of rai...
Patent number
10,814,731
Issue date
Oct 27, 2020
CRRC QINGDAO SIFANG CO., LTD.
Shuangxi Chen
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Vehicle body composite coating and design method thereof
Patent number
10,733,339
Issue date
Aug 4, 2020
CRRC QINGDAO SIFANG CO., LTD.
Shixin Zhang
B32 - LAYERED PRODUCTS
Information
Patent Grant
Train connector and inserted connection member thereof
Patent number
10,562,549
Issue date
Feb 18, 2020
CRRC QINGDAO SIFANG CO., LTD.
Weikai Yu
B61 - RAILWAYS
Information
Patent Grant
Device and method for testing flow field state within high-speed tr...
Patent number
10,401,257
Issue date
Sep 3, 2019
CRRC QINGDAO SIFANG CO., LTD.
Yundong Han
G01 - MEASURING TESTING
Information
Patent Grant
Rail vehicle bogie draw-gear
Patent number
10,137,910
Issue date
Nov 27, 2018
CRRC QINGDAO SIFANG CO., LTD.
Dalian Yu
B61 - RAILWAYS
Information
Patent Grant
Welding clamping device
Patent number
10,137,539
Issue date
Nov 27, 2018
CRRC QINGDAO SIFANG CO., LTD.
Shixin Zhang
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Position-limiting device
Patent number
9,809,147
Issue date
Nov 7, 2017
CRRC QINGDAO SIFANG CO., LTD.
Jianqiang Guo
B60 - VEHICLES IN GENERAL
Information
Patent Grant
Securing system for freight wagon and freight wagon
Patent number
9,758,180
Issue date
Sep 12, 2017
CRRC QINGDAO SIFANG CO., LTD.
Zhaojin Sun
B60 - VEHICLES IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
SUSPENSION FRAME ASSEMBLY OF MAGNETIC LEVITATION VEHICLE
Publication number
20200254884
Publication date
Aug 13, 2020
CRRC QINGDAO SIFANG CO., LTD.
Xiankai LIU
B60 - VEHICLES IN GENERAL
Information
Patent Application
METHOD FOR PRODUCING A HOLLOW SUPPORT FROM A FIBER COMPOSITE MATERI...
Publication number
20190351630
Publication date
Nov 21, 2019
CRRC QINGDAO SIFANG CO., LTD.
Sansan DING
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
RAIL TRANSIT BRAKING ENERGY RECOVERY SYSTEM AND HYBRID POWER RAIL T...
Publication number
20190225089
Publication date
Jul 25, 2019
CRRC QINGDAO SIFANG CO., LTD.
Xu ZHANG
B60 - VEHICLES IN GENERAL
Information
Patent Application
DOUBLE-DECKER RAIL VEHICLE
Publication number
20190217874
Publication date
Jul 18, 2019
CRRC QINGDAO SIFANG CO., LTD.
Xiaojun DENG
B61 - RAILWAYS
Information
Patent Application
SYSTEM AND METHOD FOR SUPPRESSING THE SERPENTINE INSTABILITY OF RAI...
Publication number
20190070976
Publication date
Mar 7, 2019
CCRC Qingdao Sifang Co., Ltd.
Shuangxi Chen
B60 - VEHICLES IN GENERAL
Information
Patent Application
SYSTEM AND METHOD FOR TESTING NETWORK-SIDE HARMONIC COMPONENT OF MO...
Publication number
20180180651
Publication date
Jun 28, 2018
CRRC QINGDAO SIFANG CO., LTD.
Jin YU
G01 - MEASURING TESTING
Information
Patent Application
VEHICLE BODY COMPOSITE COATING AND DESIGN METHOD THEREOF
Publication number
20180173830
Publication date
Jun 21, 2018
CRRC QINGDAO SIFANG CO., LTD.
Shixin ZHANG
B32 - LAYERED PRODUCTS
Information
Patent Application
TRAIN CONNECTOR AND INSERTED CONNECTION MEMBER THEREOF
Publication number
20170369082
Publication date
Dec 28, 2017
CRRC QINGDAO SIFANG CO., LTD.
Weikai YU
B61 - RAILWAYS
Information
Patent Application
WELDING CLAMPING DEVICE
Publication number
20170239761
Publication date
Aug 24, 2017
CRRC QINGDAO SIFANG CO., LTD.
Shixin ZHANG
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
DEVICE AND METHOD FOR TESTING FLOW FIELD STATE WITHIN HIGH-SPEED TR...
Publication number
20170234763
Publication date
Aug 17, 2017
CRRC QINGDAO SIFANG CO., LTD.
Yundong HAN
G01 - MEASURING TESTING
Information
Patent Application
POSITION-LIMITING DEVICE
Publication number
20170080845
Publication date
Mar 23, 2017
CRRC QINGDAO SIFANG CO., LTD.
Jianqiang GUO
B60 - VEHICLES IN GENERAL
Information
Patent Application
SECURING SYSTEM FOR FREIGHT WAGON AND FREIGHT WAGON
Publication number
20170050649
Publication date
Feb 23, 2017
CRRC QINGDAO SIFANG CO., LTD.
Zhaojin SUN
B61 - RAILWAYS
Information
Patent Application
RAIL VEHICLE BOGIE DRAW-GEAR
Publication number
20160332642
Publication date
Nov 17, 2016
CRRC QINGDAO SIFANG CO., LTD.
Dalian YU
B61 - RAILWAYS