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YANTAI ZHONGYU AIR HYDRAULIC CO LTD

Overview
  • Total Patents
    31
  • GoodIP Patent Rank
    51,474
  • Filing trend
    ⇩ 100.0%
About

YANTAI ZHONGYU AIR HYDRAULIC CO LTD has a total of 31 patent applications. It decreased the IP activity by 100.0%. Its first patent ever was published in 2017. It filed its patents most often in China. Its main competitors in its focus markets mechanical elements, measurement and engines, pumps and turbines are ENESG CO LTD, SUZHOU FNS VIBRATION SYSTEM CO LTD and AVIAT GMBH.

Patent filings in countries

World map showing YANTAI ZHONGYU AIR HYDRAULIC CO LTDs patent filings in countries
# Country Total Patents
#1 China 31

Patent filings per year

Chart showing YANTAI ZHONGYU AIR HYDRAULIC CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Xiangzhi 31
#2 Ni Yupei 31
#3 Zhang Xianting 1
#4 Liu Guijiang 1
#5 Sun Qitao 1
#6 Teng Xianglong 1
#7 Ni Daowei 1

Latest patents

Publication Filing date Title
CN110529447A The oil filtering device of electrohydraulic servo valve
CN110487626A Electro-hydraulic servo twin shaft pipeline fatigue experimental device
CN110594223A Electro-hydraulic servo valve
CN110567855A Electro-hydraulic servo pressure infiltration device
CN110566530A Oil leakage prevention device for electro-hydraulic servo valve
CN110594208A Electro-hydraulic servo force increasing cylinder
CN110513522A Electrohydraulic servo valve emergency protecting equipment
CN110479940A A kind of hydraulic part riveting machine
CN110479684A Cleaning device is used in a kind of processing of hydraulic part
CN110411673A A kind of hydraulic part air seal test platform
CN110454465A A kind of hydraulic part platform position fast replacing device
CN110497365A A kind of multifunctional solution casting die maintenance platform
CN110486266A A kind of oil distribution casing
CN110486517A A kind of multi-way valve body liquid casting hydraulic part
CN110307215A Electrohydraulic servo valve contamination wear experimental rig
CN110440045A Servo water pressure control device
CN110410314A A kind of aerospace hydraulic pump
CN110439873A High pressure high flow rate multiway conversion valve
CN110421199A Valve body end face driller's mold
CN110451439A Pushed hydraulic universal vehicle