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Yanjin BI

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  • Liaocheng, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Humic acid composition and application thereof
    • Patent number 10,059,632
    • Issue date Aug 28, 2018
    • SHANDONG TRALIN PAPER CO., LTD.
    • Hongfa Li
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Corn stalk material, a method and apparatus for preparing it
    • Patent number 9,420,745
    • Issue date Aug 23, 2016
    • SHANDONG TRALIN PAPER CO., LTD.
    • Hongfa Li
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Raw Paper
    • Patent number 8,771,465
    • Issue date Jul 8, 2014
    • Shandong Fuyin Paper & Environmental Protection Technology Co., Ltd
    • Hongfa Li
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Method for preparing a grass-type unbleached paper product
    • Patent number 8,303,772
    • Issue date Nov 6, 2012
    • Shangdong Fuyin Paper & Environmental Protection Technology Co., Ltd.
    • Hongfa Li
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents