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PETRO KING OILFIELD TECHNOLOGY LTD

Overview
  • Total Patents
    12
  • GoodIP Patent Rank
    187,848
About

PETRO KING OILFIELD TECHNOLOGY LTD has a total of 12 patent applications. Its first patent ever was published in 2013. It filed its patents most often in China and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets civil engineering and mechanical elements are WELLBORE ENERGY SOLUTIONS LLC, ROTOJAR LTD and EXTREME MACHINING AUSTRALIA PT.

Patent filings in countries

World map showing PETRO KING OILFIELD TECHNOLOGY LTDs patent filings in countries

Patent filings per year

Chart showing PETRO KING OILFIELD TECHNOLOGY LTDs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Zhao Jindong 7
#2 Liu Chenglin 2
#3 Niu Yi 2
#4 Lin Qingyan 2
#5 Wang Xinyu 2
#6 Bian Peiming 2
#7 Li Yongbo 2
#8 Yang Xiaoqing 1
#9 Wang Jinlong 1
#10 Wu Jia 1

Latest patents

Publication Filing date Title
WO2016112612A1 Ball seat assembly and ball throwing sliding sleeve type fracturing device
WO2016115800A1 Self-lubricating sleeve type spiral centralizer
WO2016008339A1 Drill-free stage collar of through-bottom type
WO2016029728A1 Self-driven casing pipe lowering device
CN104453855A Measurement while drilling key disengagement prevention tool
CN104747127A Deep well oil production device and heat preservation method thereof
CN104747121A Protective jacket for Christmas tree
CN104420837A Method for preventing necking of oil pipes due to excessively high make-up torque
CN104420846A Suspension packer
CN103275691A Reusable slippery water fracturing fluid for shale oil and gas reservoir
CN104047571A Input type staged fracturing sliding sleeve switch controller and use method thereof