Zifeng Chen

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method of improving the appearance of injection molding and foaming...
- Patent number 9,126,358
- Issue date Sep 8, 2015
- Yanfeng Automotive Trim Systems Co., Ltd.
- Weiyi Wang
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Method Of Improving The Appearance Of Injection Molding And Foaming...
- Publication number 20150035193
- Publication date Feb 5, 2015
- Yanfeng Automotive Trim Systems Co., Ltd .
- Weiyi Wang
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL