| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Toys | |
| #2 | Spring or inertia motors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ernest Fields | 11 |
| Publication | Filing date | Title |
|---|---|---|
| GB713118A | Toy track system | |
| US2756687A | Toy track system | |
| US2636114A | Toy track game | |
| US2664831A | Single track game for two vehicles | |
| US2645185A | Track game with single rail | |
| US2570785A | Spring actuated motor | |
| US2600984A | Animated mechanical toy | |
| US2628095A | Toy roundabout | |
| US2512890A | Toy track system and toy vehicle | |
| US2581584A | Movement for animated toys | |
| US2581583A | Toy track system | |
| US2416473A | Toy road system |