Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6353168 | Educational music instrument for children | John Sosoka, Brad Emerson, Adam Gerstein | 2002-03-05 |
| D410972 | Music blocks | John Sosoka, Brad Emerson, Adam Gerstein | 1999-06-15 |