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BEIJING SJ ENVIRONMENTAL PROT & NEW MATERIAL CO LTD

Overview
  • Total Patents
    135
  • GoodIP Patent Rank
    211,236
About

BEIJING SJ ENVIRONMENTAL PROT & NEW MATERIAL CO LTD has a total of 135 patent applications. Its first patent ever was published in 2002. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and United States. Its main competitors in its focus markets chemical engineering, materials and metallurgy and environmental technology are PACIFIC IND DEV CORP, CRYSTAPHASE PRODUCTS INC and ZIMMER SEBASTIAN.

Patent filings in countries

World map showing BEIJING SJ ENVIRONMENTAL PROT & NEW MATERIAL CO LTDs patent filings in countries

Patent filings per year

Chart showing BEIJING SJ ENVIRONMENTAL PROT & NEW MATERIAL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Liu Zhenyi 54
#2 Lin Ke 17
#3 Wang Lixian 15
#4 Yanfang Pu 13
#5 Zhenyi Liu 13
#6 Mao Wenjun 11
#7 Wang Xiangsheng 11
#8 Li Xin 9
#9 Xuebing Wen 9
#10 Li Liying 8

Latest patents

Publication Filing date Title
CA2935501A1 A desulfurizer for conversion and absorption of high-concentration carbonyl sulfide and a desulfurizer for catalytic conversion and absorption of carbon disulfide and their preparation methods
CN103706227A Preparation method of normal temperature compound desulfurizer
CN103691299A Preparation method of high-sulfur-capacity normal-temperature composite desulfurizer
CN103691301A Preparation method of constant temperature desulfurizer with high sulfur capacity
CN103691300A Preparation method of normal-temperature iron desulfurizer
CN103626221A Method for recycling zinc oxide waste desulfurizers and co-producing ammonium sulfate
CN103521166A Preparation method of copper-based mercury removing agent
CN103521165A Preparation method of copper-based mercury removing agent
CN103318966A Preparation method of amorphous FeOOH desulfurizer by mixing solids
CN103991909A Preparation method for amorphous iron oxyhydroxide with high sulfur capacity
CN103111175A Desulfurization device for purifying gas
CN103111164A Desulfurizer
CN103920450A Preparation method of microsphere sulfur transfer agent with high wear resistance
CN103920455A Method for preparing microsphere sulfur transfer agent with high activity and high wear resistance
CN103897722A FCC (fluidized catalytic cracking) desulphurization auxiliary agent preparation technology
CN103894146A Potassium ion-containing molecular sieve desulfurizing agent, and preparation method thereof
CN103894147A Molecular sieve desulfurizer containing copper ion and potassium ion and preparation method thereof
CN103896343A Preparation method of magnetic iron oxide and magnetic iron oxide desulfurizing agent prepared therefrom
CN102872713A Desulfurization and regeneration device for removing hydrogen sulfide by utilizing gas transmission pipeline
CN102886198A Device for removing hydrogen sulfide in gas by using gas delivery pipeline