Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |