Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7663267 | Voltage controller for use in electronic appliance using a plurality of power sources and method thereof | — | 2010-02-16 |
| 7071933 | Power controlling system | — | 2006-07-04 |
| 6057999 | Device for preventing generation of X-ray and overvoltage | Jeong-hoon Park | 2000-05-02 |