Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8157609 | Mind-control toys and methods of interaction therewith | Stephen C. Hallaian, Stephen Lau, Kam Young-eun Kim Redlawsk | 2012-04-17 |
| 5085610 | Dual sound toy train set | Robert W. Engel, Alex R. Piyevsky, Enis J. Unalp | 1992-02-04 |