Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8856826 | System and method for effectively presenting multimedia information materials | Todd P. Callahan | 2014-10-07 |
| 7610358 | System and method for effectively presenting multimedia information materials | Todd P. Callahan | 2009-10-27 |