Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9796187 | Method for controlling light emission of ink cartridge, and ink cartridge | Lei Qin, Zhizheng Jia, Weichen Liu | 2017-10-24 |
| 9757950 | Ink cartridge, ink cartridge assembly and method for detecting the installation of ink cartridge | Bing Nie, Zhizheng Jia | 2017-09-12 |
| 9545795 | Ink cartridge, ink cartridge assembly and method for detecting the installation of ink cartridge | Bing Nie, Zhizheng Jia | 2017-01-17 |
| 9446598 | Method and apparatus for controlling light emission of ink cartridge | Lei Qin, Zhizheng Jia, Weichen Liu | 2016-09-20 |