Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8408916 | Short-vowel intrinsic-sound learning system | John Maslen, Jon M. Dickinson | 2013-04-02 |
| 7865129 | Early learning book system with internal, electronic media activity, such as lighting and sound activity | John Maslen, Jon M. Dickinson | 2011-01-04 |