TREA

Christopher G. Chatfield

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  • Tumba, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sintering tray
    • Patent number 5,993,970
    • Issue date Nov 30, 1999
    • Sandvik AB
    • Ulf Oscarsson
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    CVD of Al.sub.2 O.sub.3 layers on cutting inserts
    • Patent number 5,543,176
    • Issue date Aug 6, 1996
    • Sandvik AB
    • Christopher G. Chatfield
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Coated cutting insert
    • Patent number 5,071,696
    • Issue date Dec 10, 1991
    • Sandvik AB
    • Christopher G. Chatfield
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...