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CRRC QINGDAO SIFANG ROLLING STOCK RES INST CO LTD

Overview
  • Total Patents
    677
  • GoodIP Patent Rank
    2,284
  • Filing trend
    ⇩ 1.0%
About

CRRC QINGDAO SIFANG ROLLING STOCK RES INST CO LTD has a total of 677 patent applications. It decreased the IP activity by 1.0%. Its first patent ever was published in 2012. 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, electrical machinery and energy and measurement are CRRC DALIAN ELECTRIC TRACTION R & D CENTER CO LTD, CRRC ZHUZHOU INST CO LTD and CRRC SIFANG ROLLING STOCK RES INST CO LTD.

Patent filings per year

Chart showing CRRC QINGDAO SIFANG ROLLING STOCK RES INST CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Liu Hui 44
#2 Wang Minghai 34
#3 Wang Lingjun 31
#4 Wang Zhen 31
#5 Ding Hui 31
#6 Cao Hu 30
#7 Zhang Lijun 29
#8 Zhang Bo 28
#9 Huang Shiwei 27
#10 Song Hongguang 26

Latest patents

Publication Filing date Title
CN112141155A Planing energy-absorbing anti-creep device and rail vehicle
CN112224029A Redundancy control method for electromechanical brake system of rail vehicle
CN112249083A Method for monitoring brake shoe braking state
CN112248821A Power distribution method of non-contact traction power supply system of energy storage type rail train
CN112158183A Active rail vehicle braking system of high-speed switch valve
CN112254762A Environmental state monitoring method of electrical cabinet
CN112181518A Train passenger information display system interface design method and system based on BS framework
CN112271801A Energy storage control method for urban rail train without contact network power supply
CN112026833A Connecting pipe, car coupler and rail train
CN112181743A Accompanying and measuring device of serial port equipment
CN112061169A Drawbar, coupler and drawbar manufacturing method
CN112145610A Air spring
CN112092632A Super capacitor energy storage regeneration system and control method
CN112113085A Rail clamping device, rail and mounting method of rail clamping device
CN112060919A Rail vehicle brake fusion control system and method
CN112061093A Locomotive braking system for realizing automatic driving and realization method thereof
CN112061092A Train emergency braking trigger device
CN112060917A Current collector and rail vehicle
CN112098890A Method for detecting alternating current grounding fault of parallel auxiliary converter of motor train unit
CN112065895A Electric brake