Zhi-Zhong Yuan

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San Gabriel, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of recycling solid waste polystyrene packing materials
- Patent number 7,563,829
- Issue date Jul 21, 2009
- Zhi-Zhong Yuan
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Method of recycling solid waste polystyrene packing materials
- Publication number 20070249741
- Publication date Oct 25, 2007
- U.S. Hu Bang Co., Ltd.
- Zhi-Zhong Yuan
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL