Li-Ching Chen

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Chu Pei City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Method for recognizing graphical indicator
- Patent number 7,819,330
- Issue date Oct 26, 2010
- SONIX Technology Co., Ltd.
- Yao-Hung Tsai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Graphical indicator
- Patent number 7,549,597
- Issue date Jun 23, 2009
- SONIX Technology Co., Ltd.
- Yao-Hung Tsai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
GRAPHICAL INDICATOR
- Publication number 20090212119
- Publication date Aug 27, 2009
- Yao-Hung TSAI
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
GRAPHICAL INDICATOR
- Publication number 20090212120
- Publication date Aug 27, 2009
- Yao-Hung Tsai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
Graphical indicator
- Publication number 20070246547
- Publication date Oct 25, 2007
- SONIX TECHNOLOGY CO., LTD.
- Yao-Hung Tsai
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS