Chengjie Zhang

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Aurora, CA

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Patents Grantslast 30 patents

Information Patent Grant
Composite plastic materials produced from waste materials and metho...
- Patent number 7,022,751
- Issue date Apr 4, 2006
- Royal Group Technologies Limited
- Chengjie Zhang
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
Composite plastic materials produced from waste materials and metho...
- Publication number 20030125399
- Publication date Jul 3, 2003
- Royal Group Technologies Limited
- Chengjie Zhang
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL