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CRRC CHANGCHUN RAILWAY VEHICLES CO LTD

Overview
  • Total Patents
    1,083
  • GoodIP Patent Rank
    1,438
  • Filing trend
    ⇩ 1.0%
About

CRRC CHANGCHUN RAILWAY VEHICLES CO LTD has a total of 1,083 patent applications. It decreased the IP activity by 1.0%. Its first patent ever was published in 2016. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and EPO (European Patent Office). Its main competitors in its focus markets transport, measurement and machine tools are CRRC TANGSHAN CO LTD, CRRC QINGDAO SIFANG CO LTD and CRRC NANJING PUZHEN CO LTD.

Patent filings per year

Chart showing CRRC CHANGCHUN RAILWAY VEHICLES CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zhao Yangkun 32
#2 Qiao Feng 29
#3 Luo Zhaoqiang 29
#4 Wang Lei 27
#5 Li Changsheng 26
#6 Yang Shu 26
#7 Cao Yanhua 26
#8 Gao Yang 26
#9 Zhao Jinlong 26
#10 Deng Hai 25

Latest patents

Publication Filing date Title
CN112203492A Magnetic field shielding structure of railway vehicle
CN112046538A Transverse and longitudinal integrated non-power framework device with temperature-measurable axle box
CN112046537A Power bogie based on novel motor suspension structure and temperature-measurable axle box
CN112046536A Bogie based on novel motor suspension structure and flexible interconnection framework
CN112067165A Temperature sensor precision testing system, testing method, testing device and storage medium
CN112182765A Noise data acquisition method and device
CN112051335A Sound insulation test system
CN112163276A Air volume testing method and device and server
CN112179686A Single wheel pair rail transfer test device
CN112183339A Electromagnetic environment assessment method and device and server
CN112034297A High-temperature vibration test device
CN112161823A Temperature and humidity vibration testing equipment for rail vehicle parts
CN112179482A Method and system for identifying noise source in railway vehicle
CN112277643A Auxiliary system starting time optimization control method based on TCMS
CN112277981A Built-in roof and air duct integrated module structure of metro vehicle
CN112047155A Mounting device for strip detection and strip detection method
CN112229655A Rail train debugging layout and rail train dynamic debugging process
CN112078152A Method and mold for molding carbon fiber composite material part
CN112277984A Highly integrated fresh air inlet device for train
CN112026822A Air spring snow-proof cover for railway vehicle