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CNPC OFFSHORE ENG CO LTD

Overview
  • Total Patents
    13
  • GoodIP Patent Rank
    173,616
About

CNPC OFFSHORE ENG CO LTD has a total of 13 patent applications. Its first patent ever was published in 2013. It filed its patents most often in China. Its main competitors in its focus markets measurement, engines, pumps and turbines and civil engineering are SP PK B AVTOM GLUBOKOGO RAZVED, IMDEX LTD and TIANJIN DAGANG OILFIELD SHENGDA TECHNOLOGY CO LTD.

Patent filings in countries

World map showing CNPC OFFSHORE ENG CO LTDs patent filings in countries
# Country Total Patents
#1 China 13

Patent filings per year

Chart showing CNPC OFFSHORE ENG CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Guan Yougeng 7
#2 Li Chunrun 4
#3 Hu Yanhua 4
#4 Liu Jian 4
#5 Sun Bo 4
#6 Gao Zhaoxin 4
#7 Kang Rongyu 4
#8 Niu Huli 4
#9 Zhang Guanghua 3
#10 Zhang Zhipeng 3

Latest patents

Publication Filing date Title
CN108678672A Deep water superficial part complex lithology formation conduit is efficiently placed in and well head stability forecast method
CN109356567A Deep water shallow stratum borehole wall stability prediction method
CN108661924A Lifting pump sediment outflow aptitude tests method
CN108176264A Heterogeneous system drilling fluid mixer
CN105865901A Double-propping head incubator for low-temperature CTOD (Crack Tip Opening Displacement) tests
CN106018118A Cooling box for CTOD (crank tip opening displacement) test and operating process of cooling box
CN105818017A Adjusting and positioning device for low-temperature tank test piece
CN105818159A Test-piece clamping pincers for CTOD testing
CN105298423A Hydraulic cutter for one-time cutting of multi-layer casing
CN103266591A Foundation treatment method of seabed oil and gas pipeline paving sand milling area
CN103411028A Subsea oil and gas pipeline channel non-navigation-closure pipelaying construction method
CN103398218A Construction and protection method for long-distance parallel subsea pipeline
CN103277583A Submarine pipeline seaborne horizontal opening butt joint method without mounting residual stress