TREA

Changhai Li

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  • Hisings Karra, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Piston ring having wear resistant composition
    • Patent number 7,144,017
    • Issue date Dec 5, 2006
    • Koncentra Marine & Power AB
    • Mehdi Aram
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Grant

    Piston ring having wear resistant composition
    • Patent number 7,052,018
    • Issue date May 30, 2006
    • Koncentra Marine & Power AB
    • Per Samuelsson
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents