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ENN SCIENCE & TECH DEV CO LTD

Overview
  • Total Patents
    616
  • GoodIP Patent Rank
    2,897
  • Filing trend
    ⇧ 18.0%
About

ENN SCIENCE & TECH DEV CO LTD has a total of 616 patent applications. It increased the IP activity by 18.0%. Its first patent ever was published in 2007. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and Canada. Its main competitors in its focus markets basic materials chemistry, environmental technology and biotechnology are KUNII DAIZOU, ZEROPOINT CLEAN TECH INC and ECOLOOP GMBH.

Patent filings in countries

World map showing ENN SCIENCE & TECH DEV CO LTDs patent filings in countries

Patent filings per year

Chart showing ENN SCIENCE & TECH DEV CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Kezhong 147
#2 Liu Lei 87
#3 Mao Yandong 59
#4 Cheng Leming 58
#5 Liu Minsheng 50
#6 Zhou San 46
#7 Wang Guoqing 43
#8 Bai Xuemei 31
#9 Liu Yang 31
#10 Zu Jingru 31

Latest patents

Publication Filing date Title
CN112250539A Oil product separation and refining method
CN112210405A Coal gasifying stove
CN112210403A Gasifying agent distribution plate and fluidized bed gasification furnace
CN112210404A Gasification furnace
CN112111304A Fly ash circulating gasification system and recovery treatment method of fly ash in coal gas
CN112080322A Pulverized coal grading gasification system and method
CN112090309A Coal gasification composite catalyst loading system and method
CN112029542A Hydro-gasification system and method
CN112029544A Catalytic gasification method and apparatus
CN112029538A Coupling gasification system and method for pulverized coal and lump coal
CN112029548A Production method of water coke slurry
CN112010041A Material conveying and cooling device
CN112029540A Chemical looping coal gasification system and method
CN112029541A Hydrogenation gasification furnace
CN111978993A Pressure reducing device and coke discharging system
CN111996059A Preparation method of oxygen carrier and oxygen carrier prepared based on method
CN111826207A Gasification ash treatment device and method and coal catalytic gasification system
CN111826203A Gasification furnace and gasification system
CN111826218A Preparation method of coal-coke mixed slurry
CN111701853A Fine powder separation device and chemical chain coal gasification system and method