Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D457858 | Power supply device for remote controller | — | 2002-05-28 |
| D451526 | Ratchet gear | — | 2001-12-04 |
| 5787917 | Automatic earthquake gas shut-off system | Bong June Park | 1998-08-04 |