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Yanfei Liu

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  • Shanghai, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hanging structure for seating foam
    • Patent number 12,096,862
    • Issue date Sep 24, 2024
    • Yanfeng International Automotive Technology Co., Ltd.
    • Yanfei Liu
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Polyethylene imine based dendritic dispersant
    • Patent number 9,381,481
    • Issue date Jul 5, 2016
    • BASF SE
    • Huiguang Kou
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Method for producing block copolymers
    • Patent number 8,829,116
    • Issue date Sep 9, 2014
    • Dow Global Technologies LLC
    • Longlan Cui
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Polyamine-polyacrylate dispersant
    • Patent number 8,344,074
    • Issue date Jan 1, 2013
    • BASF SE
    • Huiguang Kou
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Polyethylene imine based pigment dispersants
    • Patent number 8,268,957
    • Issue date Sep 18, 2012
    • BASF SE
    • Yanfei Liu
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

  • Information Patent Application

    HANGING STRUCTURE FOR SEAT FOAM
    • Publication number 20220330704
    • Publication date Oct 20, 2022
    • Yanfei LIU
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Application

    Polymers with Carboxylic Ammonium Groups as Latent Catalysts for Ep...
    • Publication number 20140343228
    • Publication date Nov 20, 2014
    • Yanfei Liu
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    METHOD FOR PRODUCING BLOCK COPOLYMERS
    • Publication number 20120101218
    • Publication date Apr 26, 2012
    • Longlan CUI
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    POLYAMINE-POLYACRYLATE DISPERSANT
    • Publication number 20100280183
    • Publication date Nov 4, 2010
    • CIBA CORPORATION
    • Huiguang Kou
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    POLYETHYLENE IMINE BASED PIGMENT DISPERSANTS
    • Publication number 20100174046
    • Publication date Jul 8, 2010
    • Yanfei Liu
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    POLYETHYLENE IMINE BASED DENDRITIC DISPERSANT
    • Publication number 20100113709
    • Publication date May 6, 2010
    • Huiguang Kou
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL