| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 13 | |
| #2 | Germany | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Basic communication technologies | |
| #3 | Telecommunications |
| # | Technology | |
|---|---|---|
| #1 | Magnets and transformers | |
| #2 | Electric switches | |
| #3 | Resonators | |
| #4 | Tuning resonant circuits | |
| #5 | Antennas | |
| #6 | Transmission | |
| #7 | Amplifiers |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nissen Georges | 5 |
| Publication | Filing date | Title |
|---|---|---|
| DE820914C | Contact switch |