Chengwu Gu

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Shenzhen, CN

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Patents Grantslast 30 patents

Information Patent Grant
Scanning device with a positioning sensor and a corresponding proce...
- Patent number 7,386,189
- Issue date Jun 10, 2008
- Shenzhen Syscan Technology Co. Ltd.
- Wei Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Insert-type barcode reader
- Patent number 7,175,091
- Issue date Feb 13, 2007
- Shenzhen Syscan Technology Co. Limited
- Bo An
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Information Card with Multiple Storage Media and a Device and Metho...
- Publication number 20070084933
- Publication date Apr 19, 2007
- Shenzhen Syscan Technology Co. Ltd.
- Wei Zhang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Insert-type barcode reader
- Publication number 20050139675
- Publication date Jun 30, 2005
- Bo An
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Information card with multiple storage media and a device and metho...
- Publication number 20050092844
- Publication date May 5, 2005
- Shenzhen Syscan Technology Co. Ltd.
- Wei Zhang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Scanning device with a positioning sensor and a corresponding proce...
- Publication number 20050094902
- Publication date May 5, 2005
- Shenzhen Syscan Technology Co. Ltd.
- Wei Zhang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE