Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6857731 | Ink level indicator and ink cartridge having the same | — | 2005-02-22 |
| 6764171 | Pressure regulator, cartridge using the same and method for indicating remaining cartridge content | — | 2004-07-20 |
| 6523579 | Method of manufacturing an ink jet print cartridge and ink jet print cartridge manufactured using the same | — | 2003-02-25 |