TREA

Arne Frestad

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  • Goteborg, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method at treatment of metals
    • Patent number 6,174,383
    • Issue date Jan 16, 2001
    • EKA Chemicals AB
    • Charlotte Angel
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Method of treating a metal
    • Patent number 5,958,147
    • Issue date Sep 28, 1999
    • Akzo Nobel N.V.
    • Troy Berglind
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Method at treatment of metals
    • Patent number 5,810,939
    • Issue date Sep 22, 1998
    • Eka Chemicals AB
    • Charlotte Angel
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...