Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6744366 | Method and apparatus of obtaining security tag operation using local magnetic marker | — | 2004-06-01 |
| 6730235 | Method and apparatus of obtaining water conditioning utilizing localized hot zone | Yung-Ching Chu | 2004-05-04 |