Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6800841 | Tilt switch | — | 2004-10-05 |
| 6784386 | Vibration switch with axially extending deflectable electric contact | Kun-Chih Chou | 2004-08-31 |
| 6740867 | Vibration switch | — | 2004-05-25 |
| 6706979 | Vibration switch | — | 2004-03-16 |