| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 |
| # | Industry | |
|---|---|---|
| #1 | Audio-visual technology | |
| #2 | Optics | |
| #3 | Electrical machinery and energy | |
| #4 | Basic communication technologies | |
| #5 | Telecommunications | |
| #6 | Control |
| # | Technology | |
|---|---|---|
| #1 | Special information storage | |
| #2 | Loudspeakers and microphones | |
| #3 | Electric discharge tubes | |
| #4 | Cameras | |
| #5 | Transmission | |
| #6 | Amplification control | |
| #7 | Modulation | |
| #8 | Control or regulating systems | |
| #9 | Photosensitive materials | |
| #10 | Television |