Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9665759 | Decoding method for matrix two-dimensional code | Zhengfang Li, Zhiguo Chang | 2017-05-30 |
| 9043343 | Identifier assigning method, identifier parsing method, and multimedia reading | Zhengfang Li | 2015-05-26 |
| 7997502 | Two-dimensional code and its decoding method, and the printing publication using this two-dimensional code | Zhengfang Li, Wei Zhang, Guangyi Gu | 2011-08-16 |
| 7497380 | 2D coding and decoding barcode and its method thereof | Zhiguo Chang, Peng WANG, Fu Zhang, Xiaoyun Ding | 2009-03-03 |
| 7386189 | Scanning device with a positioning sensor and a corresponding processing method to obtain images | Wei Zhang, Fu Zhang, Zhiguo Chang, Chengwu Gu, Xiaoyun Ding | 2008-06-10 |
| 7264174 | 2D coding and decoding barcode and its method thereof | Zhiguo Chang, Peng WANG, Fu Zhang, Xiaoyun Ding | 2007-09-04 |
| 7175091 | Insert-type barcode reader | Bo An, Chengwu Gu, Fu Zhang, Xiaoyun Ding | 2007-02-13 |
| 6891979 | Pocket scanners | Darwin Hu, Alpha Hou, Jung-Chih Huang, Paul Tin Choy Cheung, Hongwei Sun | 2005-05-10 |