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HENAN LONGYU COAL CHEMICAL CO LTD

Overview
  • Total Patents
    15
  • GoodIP Patent Rank
    185,729
  • Filing trend
    ⇧ 200.0%
About

HENAN LONGYU COAL CHEMICAL CO LTD has a total of 15 patent applications. It increased the IP activity by 200.0%. Its first patent ever was published in 2011. It filed its patents most often in China. Its main competitors in its focus markets environmental technology, materials and metallurgy and organic fine chemistry are SHANGHAI INTERNAT ENGINEERING CONSULTING COMPANY, CONOCOPHILLPS COMPANY and EHR PRODAKTS EHND KEMIKALZ INK.

Patent filings in countries

World map showing HENAN LONGYU COAL CHEMICAL CO LTDs patent filings in countries
# Country Total Patents
#1 China 15

Patent filings per year

Chart showing HENAN LONGYU COAL CHEMICAL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Shen Xiaoyan 6
#2 Hou Liutao 6
#3 Xie Feidong 5
#4 Du Xia 4
#5 Niu Yuqi 3
#6 Xu Xiaozhi 3
#7 Huang Ruguo 3
#8 Yan Jun 3
#9 Wu Hongqi 2
#10 Liu Pintao 2

Latest patents

Publication Filing date Title
CN110726287A Method for unfreezing and cold-state driving of CO cryogenic separation device
CN109485018A A kind of ammonia from coal purified synthesis gas sulfur recovery technology
CN109607868A A kind of advanced treatment system and its deep treatment method of low concentration fluoride waste
CN108341417A A kind of starting method of ammonia compression unit
CN108046986A A kind of the recycling system and its recycling method of the effective gas of coal-ethylene glycol technique
CN106083524A Ammonia from coal, coal process of acetic acid is utilized to reduce discharging CO2combined unit reduce discharging CO2and increase yield of methanol and the method for acetic acid
CN106000477A Method for sulfurizing shift catalyst in process of preparing methanol from coal
CN103321934A System for preventing reverse rotation of large-sized centrifugal compressor
CN103063420A Gasification furnace switch valve comprehensive fault forecasting method
CN102966971A Ignition operation method of sulfur-producing combustion furnace for sulfur recovery
CN102879227A Universal sampler
CN102517086A Method for using carbon dioxide as delivery gas and back flushing gas of coal powder instead of nitrogen in coal gasification methanol preparation process
CN102323016A Leak finding tool for pressure equipment
CN102041105A Method for performing depressurized sweeping on gasification furnace
CN102175023A Igniting method for gasification furnace start-up burner