Lei Zhao

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Nanjing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for degassing cast aluminum alloys
- Patent number 8,870,999
- Issue date Oct 28, 2014
- GM Global Technology Operations LLC
- Qigui Wang
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS AND METHOD FOR DEGASSING CAST ALUMINUM ALLOYS
- Publication number 20130112042
- Publication date May 9, 2013
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Qigui Wang
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...