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ENN COAL GASIFICATION MINING CO LTD

Overview
  • Total Patents
    52
  • GoodIP Patent Rank
    61,152
About

ENN COAL GASIFICATION MINING CO LTD has a total of 52 patent applications. Its first patent ever was published in 2011. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and EPO (European Patent Office). Its main competitors in its focus markets civil engineering, environmental technology and basic materials chemistry are ENN GASIFICATION COAL MINING CO LTD, READING & BATES CONSTR and RESOURCE INNOVATIONS INC.

Patent filings per year

Chart showing ENN COAL GASIFICATION MINING CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chen Feng 39
#2 Liu Gang 16
#3 Pan Xia 14
#4 Zhang Shuchuan 13
#5 Liu Hongtao 11
#6 Pang Xulin 9
#7 Gan Zhongxue 5
#8 Zhang Ming 4
#9 Wang Shipeng 4
#10 Xi Jianfen 3

Latest patents

Publication Filing date Title
WO2016101681A1 Well head structure
CN104018825A Method, device and system for determining temperature of coal gasification fire area
CN103982180A Method and device for determining coal gasification working face length during coal underground gasification
CN103982154A Well casing recovery method
EP3043021A1 Underground coal gasification furnace and underground coal gasification method
EP3064702A1 Nozzle and underground coal gasification method
CN103670361A Gas injection device, coal underground gasification system and coal underground gasification method
CN103591980A Method, device and system for monitoring through state of underground coal gasification channel
CN103590805A Broaching method of coal seam channel
CN103555370A Method for gasifying carbonaceous organic materials and gasification furnace
CN103556980A Coal underground gasification method
CN103556979A Coal underground gasification method
CN103422848A Underground coal gasification method and grouting device
CN103670357A Method for crack communication, channel processing and underground gasification of underground mineral contained organic carbon reservoir
CN103670338A Method for extracting coalbed methane and coal together
CN102620791A Method and system for measuring gas flow in multiphase flow and multiphase flow distribution device
CN102619499A Method for monitoring distribution of coal underground gasification temperature zones
CN103184242A Biological utilization method of coal underground gasification product gas
CN102587884A Utilizing process for underground gasified gas condensate
CN102493840A Method for filling underground spaces and system for filling underground spaces