TREA

Klaus Sieben

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  • Konigswinter, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for producing polyurethane moldings
    • Patent number 7,404,916
    • Issue date Jul 29, 2008
    • Hennecke GmbH
    • Michael Begemann
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Process for producing polyurethane moldings
    • Publication number 20040130049
    • Publication date Jul 8, 2004
    • Michael Begemann
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL