Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8577280 | Programmed classroom instruction | Ronald R. Hutchinson, Tullio J. Proni, Grace S. Emley | 2013-11-05 |
| 8275305 | Programmed classroom instruction | Ronald R. Hutchinson, Tullio J. Proni, Grace S. Emley | 2012-09-25 |