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CHINA UNITED COALBED METHANE NAT ENG RES CT CO LTD

Overview
  • Total Patents
    27
  • GoodIP Patent Rank
    212,948
About

CHINA UNITED COALBED METHANE NAT ENG RES CT CO LTD has a total of 27 patent applications. Its first patent ever was published in 2009. It filed its patents most often in China. Its main competitors in its focus markets basic materials chemistry and materials and metallurgy are KY OTDEL BURENIYA ISPYTAN, TEDA BO XING HIGH TECHNOLOGY CORP CNPC and KITAI ADRIAN H.

Patent filings in countries

World map showing CHINA UNITED COALBED METHANE NAT ENG RES CT CO LTDs patent filings in countries
# Country Total Patents
#1 China 27

Patent filings per year

Chart showing CHINA UNITED COALBED METHANE NAT ENG RES CT CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Liang Wei 10
#2 Wei Zhenji 8
#3 Cheng Qianhui 7
#4 Huang Hongxing 5
#5 Peng Hongzhao 5
#6 Wang Fenglin 4
#7 Zhao Zengping 4
#8 Hu Xiong 4
#9 Wang Degui 4
#10 Mao Zhixin 4

Latest patents

Publication Filing date Title
CN104963641A Device for obtaining pulverized coal in coal-bed gas well
CN104046339A Drilling fluid for reducing formation damage, and drilling fluid used in coal-bed gas development drilling
CN103776925A Detection method for content of target substances of industrial potassium chloride
CN103725276A Fly ash low-density grout
CN103728181A Compression experimental device for blocking ball
CN103742096A Coal bed gas water draining tubular column blowout preventer without pressing well
CN103196702A Method for measuring gas content of coal bed through airtight coring
CN103234965A Detection method of potassium chloride content in active water fracturing fluid
CN103195402A Staged fracturing system and staged fracturing method of coal-bed gas well
CN103206180A System and method for controlling dropping speed of bottom-hole pressure of coal-bed gas well
CN103160270A Encapsulated gel breaker for hydraulic fracturing of coalbed methane well, as well as preparation and using methods thereof
CN103161440A Single-well coalbed methane horizontal well system and finishing method thereof
CN103132986A Method for measuring liquid production capacities of different reservoir stratums of coal-bed gas well
CN103175825A Method and device for detecting contents of sulfides in coal bed gas
CN103146931A Copper oxide reduction device and method
CN103074042A Drilling fluid and preparation method thereof
CN103132989A Method and system for calculating coal-bed gas well working fluid level
CN102305045A Shaft crack simulator
CN102288629B Core holder
CN102086774A Drainage method of gas in coal bed