Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6896521 | Method for displaying toilet training materials and display kiosk using same | Richard Louis Underhill | 2005-05-24 |
| 6612846 | Method for displaying toilet training materials and display kiosk using same | Richard Louis Underhill | 2003-09-02 |