| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 |
| # | Industry | |
|---|---|---|
| #1 | Basic communication technologies | |
| #2 | Electrical machinery and energy | |
| #3 | Telecommunications | |
| #4 | Optics | |
| #5 | Measurement | |
| #6 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Electric discharge tubes | |
| #2 | Demodulation | |
| #3 | Generation of oscillations | |
| #4 | Modulation | |
| #5 | Radio navigation | |
| #6 | Automatic control of oscillations | |
| #7 | Antennas | |
| #8 | Vehicle parts | |
| #9 | Photosensitive materials |