Hongqi Chen

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Qingpu, CN

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Patents Grantslast 30 patents

Information Patent Grant
Powder metallurgical material, production method and application th...
- Patent number 9,005,519
- Issue date Apr 14, 2015
- Shanghai Xingluo Special Seals Co., Ltd.
- Hongqi Chen
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
POWDER METALLURGICAL MATERIAL, PRODUCTION METHOD AND APPLICATION TH...
- Publication number 20120156082
- Publication date Jun 21, 2012
- Hongqi Chen
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...