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CHAI ZHAOXI

Overview
  • Total Patents
    20
  • GoodIP Patent Rank
    140,897
  • Filing trend
    0.0%
About

CHAI ZHAOXI has a total of 20 patent applications. It increased the IP activity by 0.0%. Its first patent ever was published in 1995. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and Australia. Its main competitors in its focus markets civil engineering are XIAN SHANGUANG ENERGY TECH CO LTD, GAO JIUHUA and CDX GAS.

Patent filings in countries

World map showing CHAI ZHAOXIs patent filings in countries

Patent filings per year

Chart showing CHAI ZHAOXIs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Focus technologies

Top inventors

# Name Total Patents
#1 Chai Zhaoxi 20

Latest patents

Publication Filing date Title
CN110273710A Tunnel gas library in mine
CN107420126A Pressure circulation mine gas extraction system
CN105525903A Upward gas injection coal roadway gasifier type gasification mine
CN105019937A Independent mine for simultaneously extracting gas of total coal seams of coal seam group
CN104929680A Water seal coal roadway drill site simultaneously extracting gas of coal seams of coal seam groups
CN104989406A Shale gas mine mining shale gas under negative pressure
CN105019880A Gasifier with positive gas-injection coal roadway
CN104912589A Coal mine inclined coal bed bottom plate back gain rock roadway type gas extraction water seal drill site
CN104895601A Water filling type gas extraction water seal drilling field of upward rock roadway of hollow roadway of coal mine
CN104989447A Coal mine upward drill site coal roadway water charging type gas extraction water seal drill site
CN105019936A Gas production mine for extracting coalbed methane of original coal field in water-seal drilling field
CN104948220A Coal mine hollow shaped gas extraction water sealing drill site
CN1298058A Underground gasifying furnace used to generate gas in pit
CN1197153A Mine for directly producing coal gas in coal layer and its prodn. method
CN1172842A Multi-pour-gathering channel alternating moving bed longwall coal seam gasification method
CN1169501A Coal-bed gasifying method of gas-injection point backing while changing tube
CN1112188A Gasifying method for coal seam