| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 23 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Medical technology | |
| #3 | Telecommunications | |
| #4 | Basic communication technologies |
| # | Technology | |
|---|---|---|
| #1 | Special electric heating or lighting | |
| #2 | Electrotherapy | |
| #3 | Electric discharge tubes | |
| #4 | Antennas | |
| #5 | Generation of oscillations | |
| #6 | Cables and insulators | |
| #7 | AC and DC conversion devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Karl Fritz Dr | 20 |
| #2 | Fritz Dr Karl | 3 |
| #3 | Walter Heimann Dr-Ing | 1 |