| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | United States | 5 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Furniture and games | |
| #2 | Medical technology | |
| #3 | Electrical machinery and energy | |
| #4 | Optics |
| # | Technology | |
|---|---|---|
| #1 | Physical training equipment | |
| #2 | Toys | |
| #3 | Electrotherapy | |
| #4 | Optical systems | |
| #5 | Lighting device details |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fritz Girard | 5 |
| #2 | Margarete Gottburg | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB402806A | Metal hoop for athletic exercises and sports | |
| US2036524A | Device for use in sports | |
| US1658523A | Microscope-illuminating device | |
| US1564344A | Quartz lamp | |
| US1586670A | Quartz lamp for medical purposes | |
| US1633525A | Reflector for quartz lamps |