Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6764172 | Air bag placed in a print cartridge and method for manufacturing the same | Cheng-Wei Hsu | 2004-07-20 |
| 6722763 | Inkjet pen and pressure control device thereof | Cheng-Wei Hsu, I-Chung Hou | 2004-04-20 |