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ENN GASIFICATION COAL MINING CO LTD

Overview
  • Total Patents
    112
  • GoodIP Patent Rank
    14,379
About

ENN GASIFICATION COAL MINING CO LTD has a total of 112 patent applications. Its first patent ever was published in 2011. It filed its patents most often in China. Its main competitors in its focus markets civil engineering, basic materials chemistry and materials and metallurgy are ENN COAL GASIFICATION MINING CO LTD, READING & BATES CONSTR and LEDENT PIERRE.

Patent filings in countries

World map showing ENN GASIFICATION COAL MINING CO LTDs patent filings in countries
# Country Total Patents
#1 China 112

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Chen Feng 45
#2 Xing Hao 18
#3 Liu Hongtao 17
#4 Liang Guiling 14
#5 Zhao Juan 14
#6 Fu Weixian 13
#7 Liu Qingyu 13
#8 Yao Kai 13
#9 Gui Xiewen 11
#10 Liu Gang 11

Latest patents

Publication Filing date Title
CN105804717A Underground gasification control method
CN105486030A Methane gas recycling system and control method
CN105756653A Spray nozzle and gas injecting device with spray nozzle
CN105239948A Unclamping device and continuous pipe injection device having unclamping device
CN105062597A Natural gas purification apparatus, natural gas purification system, natural gas processing system and adsorbent regeneration method
CN105126536A Natural gas purification device, purification system, treatment system and adsorbent regeneration method
CN105087094A Natural gas purification device, natural gas purification system, natural gas treatment system and adsorbent regeneration method
CN105041301A Coal underground gasification fire zone detecting method
CN105062595A Natural gas light hydrocarbon recycling system and method
CN105126532A Method, apparatus and system for controlling natural gas adsorption column
CN105032120A Natural gas adsorption tower control method, device and system
CN105032119A Natural gas adsorption tower control method, device and system and purification system
CN105126533A Method, apparatus and system for controlling natural gas adsorption column, and purification system
CN105089604A Coal underground gasifier type and gasification method
CN105114051A Underground coal gasification furnace and method
CN105042327A Methane gas recycling system and recycling method
CN105019879A Underground coal gasification stove and gasification method
CN104948907A Compressed methane gas recycling system and recycling method
CN105003822A Recovery system and recovery method of compressed methane gas
CN105041291A Spray nozzle