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SHANGHAI VALVE FACTORY CO LTD

Overview
  • Total Patents
    29
  • GoodIP Patent Rank
    71,998
  • Filing trend
    ⇩ 40.0%
About

SHANGHAI VALVE FACTORY CO LTD has a total of 29 patent applications. It decreased the IP activity by 40.0%. Its first patent ever was published in 2008. It filed its patents most often in China. Its main competitors in its focus markets mechanical elements and measurement are CHENGDU OPTIMUX CONTROL VALVE CO LTD, Hubei taihe petrochemical equipment co ltd and XU YANZHANG.

Patent filings in countries

World map showing SHANGHAI VALVE FACTORY CO LTDs patent filings in countries
# Country Total Patents
#1 China 29

Patent filings per year

Chart showing SHANGHAI VALVE FACTORY CO LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Wang Qiulin 13
#2 Gu Chaodang 12
#3 Liu Qibin 11
#4 Tian Feng 10
#5 Zheng Zhicheng 7
#6 Su Kai 6
#7 Jianke Wang 6
#8 Liu Min 5
#9 Chen Cheng 5
#10 Gu Chunhui 4

Latest patents

Publication Filing date Title
CN111649934A Axial-flow check valve is in-service to close valve action test structure
CN111425638A Bellows balancing spring type pilot valve for steam of nuclear power station
CN111425639A Pilot valve with adjustable opening and closing pressure difference for steam of nuclear power station
CN111365502A Pilot-operated safety valve of voltage stabilizer of nuclear power station
CN110332364A A kind of switching valve links online and isolation structure
CN110360370A A kind of shut-off valve position limiting structure
CN110307382A A kind of part of revolving valves headstock gear
CN110360354A A kind of any tunable arrangement of check-valves flap maximum opening
CN108519229A A kind of cycle life characteristics experimental rig of swing check valve
CN108626425A A kind of high temperature and pressure regulation gate valve
CN108506509A A kind of gate valve sealing structure
CN107830199A A kind of valve spreading mechanism
CN107654720A A kind of operating mechanism of anti-seawater corrosion shuttle-type valve
CN107559449A A kind of multi-state valve sealing structure
CN107642637A The flow and flow resistance characteristic experimental rig of a kind of swing check valve
CN107655670A A kind of safety valve testing device and a kind of safety valve testing method
CN106151578A A kind of two way seal valve seat being applicable to multi-temperature and operating mode
CN106197969A A kind of axial flow type check valve closes valve test system
CN104806793A Low drop-out starting check valve
CN104747788A Opening-closing position indicating structure of low-pressure-difference opening check valve