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Winnie WEI

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  • Shanghai, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Composition, its production and use thereof
    • Patent number 11,155,731
    • Issue date Oct 26, 2021
    • Covestro Deutschland AG
    • Sebastian Dörr
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Aqueous polyurethane-urea dispersion
    • Patent number 10,913,814
    • Issue date Feb 9, 2021
    • Covestro Deutschland AG
    • Chen Jin
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

  • Information Patent Application

    A COMPOSITION, ITS PRODUCTION AND USE THEREOF
    • Publication number 20200062994
    • Publication date Feb 27, 2020
    • COVESTRO DEUTSCHLAND AG
    • Sebastian DÖRR
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Application

    AQUEOUS POLYURETHANE-UREA DISPERSION
    • Publication number 20190010272
    • Publication date Jan 10, 2019
    • COVESTRO DEUTSCHLAND AG
    • CHEN JIN
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...