TREA

Dieter Oppen

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  • Rodgau, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for coating iron and steel
    • Patent number 4,295,899
    • Issue date Oct 20, 1981
    • Hooker Chemicals & Plastics Corp.
    • Dieter Oppen
    • C03 - GLASS MINERAL OR SLAG WOOL
  • Information Patent Grant

    Chromium-free surface treatment
    • Patent number 4,264,378
    • Issue date Apr 28, 1981
    • Oxy Metal Industries Corporation
    • Dieter Oppen
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...