Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE48193 | No point of contact charging system | — | 2020-09-01 |
| RE44038 | No point of contact charging system | — | 2013-03-05 |
| 7443135 | No point of contact charging system | — | 2008-10-28 |
| 5734730 | Apparatus for adjusting a frequency characteristic of an audio signal according to biorhythm principles | Hong Ki Kim | 1998-03-31 |
| 5515071 | Function display circuit and method thereof in an electronic system | — | 1996-05-07 |