Chang-Wen Cao

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Taipei, TW

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing zipper without shift in injection molding
- Patent number 6,946,047
- Issue date Sep 20, 2005
- Chang-Wen Cao
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Method for manufacturing zipper without shift in injection molding
- Publication number 20030020201
- Publication date Jan 30, 2003
- Chang-Wen Cao
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL