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CHENGDU NORTH OIL EXPLOR DEV TECH CO LTD

Overview
  • Total Patents
    18
  • GoodIP Patent Rank
    92,608
About

CHENGDU NORTH OIL EXPLOR DEV TECH CO LTD has a total of 18 patent applications. Its first patent ever was published in 2014. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, surface technology and coating and computer technology are JEREH ENERGY SERVICES CORP, PUBLICHNOE AKTSIONERNOE OBSHCHESTVO TATNEFT IM V D SHASHINA PAO TATNEFT IM V D SHASHINA and O'MALLEY EDWARD J.

Patent filings in countries

World map showing CHENGDU NORTH OIL EXPLOR DEV TECH CO LTDs patent filings in countries
# Country Total Patents
#1 China 18

Patent filings per year

Chart showing CHENGDU NORTH OIL EXPLOR DEV TECH CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Jiang Liping 7
#2 Yang Hong 6
#3 Fu Hui 6
#4 Zhang Xiaoping 5
#5 Wang Rongxin 5
#6 Zang Keyi 5
#7 Zhang Bo 5
#8 Qian Li 5
#9 He Wei 5
#10 Xu Bing 5

Latest patents

Publication Filing date Title
CN106777524A A kind of non-unified oil-water interfaces reservoir reserve quick calculation method
CN106408138A Oil well short-term production index abnormity early warning method
CN105952441A Petroleum well deviation measuring device
CN106050221A Horizontal well logging apparatus
CN105888627A Pressure adjustor
CN105888628A Downhole pressure regulator
CN106050195A Down-hole gas lift valve
CN105863617A Well depth measurement structure for horizontal well
CN105888632A Oil-well injector
CN105840142A Corrosion preventing device for inner pipe wall of water injection pipe
CN105840135A Production tubing
CN105863585A Oil reservoir water injection device
CN105888574A Well completion pipe string
CN105840143A Corrosion preventing device used for inner pipe wall of water filling pipe
CN105863562A Horizontal well water injector for low-permeability oil layer
CN105840144A Anti-corrosive structure for metal pipeline
CN105822268A Horizontal well completion pipe string for middle-shallow reservoir
CN105572726A Fine drawing method for multistage laminated sector under lithostratigraphic architecture