| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | WIPO (World Intellectual Property Organization) | 4 | |
| #3 | Canada | 3 | |
| #4 | China | 2 | |
| #5 | EPO (European Patent Office) | 2 | |
| #6 | Brazil | 1 | |
| #7 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Control | |
| #2 | Consumer goods | |
| #3 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Teaching materials | |
| #2 | Books | |
| #3 | Domestic washing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Duprey John F | 15 |
| Publication | Filing date | Title |
|---|---|---|
| EP1759372A1 | Educational toy | |
| US2006210953A1 | Articles with spinning globe | |
| US2006188851A1 | Educational toy | |
| US2006076770A1 | Book with spinning globe | |
| WO2005094658A1 | Scalloped edge dustpan |