| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Japan | 4 | |
| #3 | Germany | 2 | |
| #4 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Control | |
| #3 | Computer technology |
| # | Technology | |
|---|---|---|
| #1 | Teaching materials | |
| #2 | Advertising | |
| #3 | Electric digital data processing | |
| #4 | Display controls |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lien Ming T | 4 |
| #2 | Burtis Eric F | 4 |
| #3 | Mingu Jiyuu Riian | 2 |
| #4 | Lien Ming Teh | 2 |
| #5 | Cordova James | 1 |
| #6 | Min Teii Riin | 1 |
| #7 | Jieemusu Korudoba | 1 |
| #8 | Eritsuku Efu Baateisu | 1 |
| #9 | Hafel William R | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4245405A | Machine for teaching reading | |
| JPS55115078A | Device for learning reading | |
| US4237459A | Visual display with illuminable elements arranged in vertically aligned sections | |
| US4151659A | Machine for teaching reading | |
| US4089124A | Arithmetic training apparatus | |
| JPS51112629A | Mathematic equation indicator | |
| US3947976A | Mathematical problem and number generating systems |