Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6021306 | Apparatus for presenting visual material with identified sensory material | — | 2000-02-01 |
| 5782186 | Model motor vehicle track system and method for making the same | — | 1998-07-21 |
| 5772208 | Game board incorporating apparatus for selectively providing sensory game enhancement and method for making the same | — | 1998-06-30 |
| 5609488 | Method of combining audio and visual indicia | — | 1997-03-11 |
| 5484292 | Apparatus for combining audio and visual indicia | — | 1996-01-16 |
| 5417575 | Electronic book | — | 1995-05-23 |