Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6190228 | Toddler toy system and method | Irene Hoogenboom, Ellen Booth Church | 2001-02-20 |
| 5971764 | Educational sand and water table | — | 1999-10-26 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6190228 | Toddler toy system and method | Irene Hoogenboom, Ellen Booth Church | 2001-02-20 |
| 5971764 | Educational sand and water table | — | 1999-10-26 |