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SHAANXI CHANGXIN PETROLEUM SCIENCE AND TECH CO LTD

Overview
  • Total Patents
    14
  • GoodIP Patent Rank
    123,649
About

SHAANXI CHANGXIN PETROLEUM SCIENCE AND TECH CO LTD has a total of 14 patent applications. Its first patent ever was published in 2018. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, chemical engineering and basic materials chemistry are LAYNE CHRISTENSEN COMPANY, STONE & WEBSTER ENG LTD and SHAANXI AEROSPACE DELIN SCIENCE AND TECH GROUP CO LTD.

Patent filings in countries

World map showing SHAANXI CHANGXIN PETROLEUM SCIENCE AND TECH CO LTDs patent filings in countries
# Country Total Patents
#1 China 14

Patent filings per year

Chart showing SHAANXI CHANGXIN PETROLEUM SCIENCE AND TECH CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yang Lixu 13
#2 Liu Yaocheng 13
#3 Wang Wei 13
#4 Wang Fu 13
#5 Ai Jianqiang 1
#6 Liang Qing 1

Latest patents

Publication Filing date Title
CN109777384A A kind of compound resin water shutoff material and preparation method thereof
CN111255408A Water injection pressure measurement blocking device
CN111255396A Support structure for delivery device
CN111250018A Reaction equipment
CN111252916A Oilfield produced water sedimentation equipment
CN111255449A Sampling hole structure for oil pipe
CN111215020A Filler grid for petrochemical equipment
CN111218300A Petroleum distillation device
CN111217462A High-efficient deoiling settling cask of oil field extraction water treatment
CN111218302A Contain metallic impurity petroleum fraction storage tank
CN111219599A Oil development monitoring devices
CN111219178A Separation sand washing device for oil field
CN111217041A Multifunctional petroleum storage tank
CN111219187A Non-emptying liquid sampling valve for oil field