Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7182198 | Power control circuit for use in a vending machine | Tien-Yuan Chien, Jyh-Chyang Hsieh | 2007-02-27 |
| 6991129 | Power control circuit for use in a vending machine | Tien-Yuan Chien, Jyh-Chyang Hsieh | 2006-01-31 |