| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | WIPO (World Intellectual Property Organization) | 3 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Canada | 1 | |
| #5 | China | 1 | |
| #6 | Japan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Optics | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Games | |
| #2 | Toys | |
| #3 | Electrography | |
| #4 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nesis Dov | 11 |
| Publication | Filing date | Title |
|---|---|---|
| WO2009102334A1 | Handheld wheel spelling game device | |
| US2007200292A1 | Sliding tile puzzle with tile rotating mechanism | |
| JP2007319481A | Sliding tile play apparatus with tile rotating means | |
| US2008146320A1 | Handheld wheel spelling game device | |
| EP0989891A1 | Amusement device of shifting block type | |
| WO9401288A1 | Copy preventing device and method | |
| US4865324A | Magnetic wheel puzzle |