Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7175264 | Device for continuously supplying ink under constant pressure | Xiao Qingguo | 2007-02-13 |
| D529953 | Ink refill cartridge for a printer | — | 2006-10-10 |
| 7101022 | Attachable and detachable continuously supplying ink container | Ho Leung Mui | 2006-09-05 |