Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7523938 | 3D jigsaw puzzle | — | 2009-04-28 |
| 7311306 | Extendable cylindrical jigsaw puzzle | — | 2007-12-25 |
| 7147224 | Multifunctional cylindrical sliding block jigsaw puzzle | — | 2006-12-12 |
| D532834 | Cylindrical jigsaw puzzle | — | 2006-11-28 |
| D531222 | Globe stand | — | 2006-10-31 |
| D519166 | Cylindrical jigsaw puzzle | — | 2006-04-18 |
| D518115 | Cubic jigsaw puzzle | — | 2006-03-28 |
| D518114 | Spherical jigsaw puzzle | — | 2006-03-28 |
| D511798 | Spherical jigsaw puzzle | — | 2005-11-22 |
| D497398 | Spherical jigsaw puzzle | — | 2004-10-19 |
| D490482 | Spherical jigsaw puzzle | — | 2004-05-25 |