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Patents Grantslast 30 patents

  • Information Patent Grant

    Etching solution and application thereof
    • Patent number 11,999,889
    • Issue date Jun 4, 2024
    • PhiChem Corporation
    • Xiaoyi Gao
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Etching composition and application thereof
    • Patent number 11,920,073
    • Issue date Mar 5, 2024
    • PhiChem Corporation
    • Xiaoyi Gao
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

  • Information Patent Application

    Etching solution and application thereof
    • Publication number 20220098486
    • Publication date Mar 31, 2022
    • PhiChem Corporation
    • Xiaoyi GAO
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    ETCHING COMPOSITION AND APPLICATION THEREOF
    • Publication number 20220098487
    • Publication date Mar 31, 2022
    • PhiChem Corporation
    • Xiaoyi GAO
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...