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Lei Zhao

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  • Changchun, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Weld nugget inoculation
    • Patent number 7,150,799
    • Issue date Dec 19, 2006
    • General Motors Corporation
    • Xihua Zhao
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

  • Information Patent Application

    Weld nugget inoculation
    • Publication number 20050103406
    • Publication date May 19, 2005
    • Xihua Zhao
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...