| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 33 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Telecommunications | |
| #3 | Audio-visual technology | |
| #4 | Basic communication technologies | |
| #5 | Computer technology |
| # | Technology | |
|---|---|---|
| #1 | Measuring electric variables | |
| #2 | Transmission systems | |
| #3 | Special information storage | |
| #4 | Transmission | |
| #5 | Antennas | |
| #6 | Counting mechanisms | |
| #7 | Demodulation | |
| #8 | Special measuring | |
| #9 | Tuning resonant circuits | |
| #10 | Weighing |