Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8531129 | Passive current balance driving apparatus | Chih-Jen Teng | 2013-09-10 |
| 7714689 | Transformer structure | — | 2010-05-11 |
| 6432071 | Spherical massager | — | 2002-08-13 |
| 5288072 | Hockey puck | — | 1994-02-22 |