Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D653140 | Signal shift device | Kim Kwok | 2012-01-31 |
| D652752 | Signal shift device | Kim Kwok | 2012-01-24 |
| 7052261 | Device for melting and remolding crayons | Andy O. Stortroen | 2006-05-30 |
| 6971196 | Message sign | Carl L. Erwin | 2005-12-06 |