Caixia Li

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Security functional thin film and security product containing the f...
- Patent number 8,257,840
- Issue date Sep 4, 2012
- China Banknote Printing And Minting Corporation
- Xiaowei Li
- B32 - LAYERED PRODUCTS

Patents Applicationslast 30 patents

Information Patent Application
Security Functional Thin Film and Security Product Containing the F...
- Publication number 20100220371
- Publication date Sep 2, 2010
- CHINA BANKNOTE PRINTING AND MINTING CORPORATION
- Xiaowei Li
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS