Issued Patents All Time
Showing 51–61 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6053741 | Flash card holder and learning method | — | 2000-04-25 |
| 6009012 | Microcontroller having a non-volatile memory and a method for selecting an operational mode | James M. Sibigtroth, Linda R. Nuckolls, Daniel Mark Thompson | 1999-12-28 |
| 5997304 | Interactive phonics learning mat | — | 1999-12-07 |
| 5944533 | Interactive educational toy | — | 1999-08-31 |
| 5839902 | Electronic geography teaching device | — | 1998-11-24 |
| 5813861 | Talking phonics interactive learning device | — | 1998-09-29 |
| D370235 | Talking phonics interactive learning device | — | 1996-05-28 |
| D370027 | Talking phonics interactive learning device | — | 1996-05-21 |
| 5511980 | Talking phonics interactive learning device | — | 1996-04-30 |
| 5188533 | Speech synthesizing indicia for interactive learning | — | 1993-02-23 |
| 5003596 | Method of cryptographically transforming electronic digital data from one form to another | — | 1991-03-26 |