Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6666552 | Diaphragm/check valve used in inkjet cassette to air removal for extended life storage | Bruce S. Jones, William A. Putman | 2003-12-23 |
| 6659599 | Maximum liquid level in dual chamber ink-jet cartridge to control head pressure effect on ink containing porous member in an ink-jet printer | William A. Putman | 2003-12-09 |