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David Keirs

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  • Paisley, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Production process
    • Patent number 6,306,938
    • Issue date Oct 23, 2001
    • Ciba Specialty Chemicals Corp.
    • Richard Ernest Mathers
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Phthalocyanine pigment compositions
    • Patent number 5,279,654
    • Issue date Jan 18, 1994
    • Ciba-Geigy Corporation
    • David Keirs
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...

Patents Applicationslast 30 patents

  • Information Patent Application

    PRODUCTION PROCESS
    • Publication number 20020000177
    • Publication date Jan 3, 2002
    • RICHARD ERNEST MATHERS
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...