TREA

Gudrun Volling

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  • Frankfurt am Main, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for phosphating metals
    • Patent number 4,559,087
    • Issue date Dec 17, 1985
    • Parker Chemical Company
    • Peter Jorns
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Process for phosphatizing metals
    • Patent number 4,419,199
    • Issue date Dec 6, 1983
    • Occidental Chemical Corporation
    • Dieter Hauffe
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Composition and process for the phosphatizing of metals
    • Patent number 4,389,260
    • Issue date Jun 21, 1983
    • Occidental Chemical Corporation
    • Dieter Hauffe
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...