Zhen Tao

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Union City, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Systems and methods for electronic off-line catalog
- Patent number 7,437,318
- Issue date Oct 14, 2008
- Gemstar EBook Group Limited
- Henry Yuen
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Systems and methods for electronic off-line catalog
- Publication number 20030069812
- Publication date Apr 10, 2003
- Gemstar Development Corporation
- Henry Yuen
- G06 - COMPUTING CALCULATING COUNTING