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CHINA NATIONAL PETROLEUM CORPORATION SOUTHWEST OIL & GASFIELD BRANCH ENGINEERING TECH RESEARCH INSTI

Overview
  • Total Patents
    39
  • GoodIP Patent Rank
    39,836
About

CHINA NATIONAL PETROLEUM CORPORATION SOUTHWEST OIL & GASFIELD BRANCH ENGINEERING TECH RESEARCH INSTI has a total of 39 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, electrical machinery and energy and audio-visual technology are DONALD IAN, WIRELINE ENGINEERING LTD and BLAFRO TOOLS AS.

Patent filings in countries

World map showing CHINA NATIONAL PETROLEUM CORPORATION SOUTHWEST OIL & GASFIELD BRANCH ENGINEERING TECH RESEARCH INSTIs patent filings in countries
# Country Total Patents
#1 China 39

Patent filings per year

Chart showing CHINA NATIONAL PETROLEUM CORPORATION SOUTHWEST OIL & GASFIELD BRANCH ENGINEERING TECH RESEARCH INSTIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ma Huiyun 19
#2 Tang Shiguo 19
#3 Yang Yongtao 17
#4 Yang Hai 15
#5 Wang Xueqiang 13
#6 Xu Dingjiang 11
#7 Yu Chenggang 10
#8 Yin Qiang 9
#9 Fu Yukun 9
#10 Liu Hui 9

Latest patents

Publication Filing date Title
CN112196499A Water lifting method of positioning tool descending along with oil pipe
CN112127808A Spiral ball self-vibration self-lubricating universal nipple
CN112112585A Throwing type hydraulically-driven clamping device
CN112112587A Plunger self-positioning method
CN111894525A Device and method for composite integrated drainage and mining of unconventional gas reservoir platform
CN111827897A Oil pipe lowering device suitable for high-pressure gas well
CN111878061A Visual experimental apparatus of operation tool string trafficability characteristic in inclined shaft
CN111894474A Operation tool string containing snakelike weight bar
CN111878062A Visual experiment method for trafficability of operation tool string in inclined shaft
CN111894475A Snakelike weight bar
CN111691837A System and method for prolonging life cycle of stratum energy-depleted gas well
CN111502597A Combined efficient blockage removing system and blockage removing method thereof
CN111502559A Bidirectional slip sealing oil pipe coupling clamping device and construction method thereof
CN110905437A Soluble plug
CN110984918A Gas lift drainage gas recovery device and method for unconventional gas reservoir horizontal well
CN110805410A Intelligent sliding sleeve of bridge-plug-free multistage fracturing electric control switch
CN110748327A Fixed underground throttle
CN110608026A Underground multistage fracturing intelligent sliding sleeve control system and method based on pressure wave communication
CN110593817A Wellhead operation visualization device and method
CN110513064A Movable anchoring device and anchorage method in a kind of oil pipe