Ching-Wen Chang

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Taichung, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method for making heat-insulative paper containers and the products
- Patent number 8,585,946
- Issue date Nov 19, 2013
- Rich Cup Bio-Chemical Technology Co., Ltd.
- Ching-Wen Chang
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL