| # | Country | Total Patents | |
|---|---|---|---|
| #1 | WIPO (World Intellectual Property Organization) | 10 | |
| #2 | EPO (European Patent Office) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Textiles and paper | |
| #2 | Optics | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Typewriters | |
| #2 | Electrography | |
| #3 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wu Jun-Zhong | 8 |
| #2 | Zhou Yi | 8 |
| #3 | Qin Lei | 2 |
| #4 | Wu Junzhong | 1 |
| #5 | Chen Bao-Quan | 1 |
| #6 | Ding Ge-Ming | 1 |
| #7 | Ma Xiaotian | 1 |
| #8 | Xu Xiuyuan | 1 |
| #9 | Li Dongfei | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO2007025422A1 | A detachable ink cartridge with a display member | |
| WO2007025421A1 | A detachable ink cartridge | |
| WO2007014504A1 | An ink cartridge | |
| WO2007056906A1 | An ink cartridge | |
| WO2006131038A1 | An ink cartridge | |
| WO2007051370A1 | An ink cartridge with a detachable means |