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Sandra Heldt

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  • Erkrath, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Biologically degradable compositions
    • Patent number 7,825,163
    • Issue date Nov 2, 2010
    • Cognis IP Management GmbH
    • Uwe Held
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

  • Information Patent Application

    Biologically degradable compositions
    • Publication number 20050065279
    • Publication date Mar 24, 2005
    • Uwe Held
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...