| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 |
| # | Industry | |
|---|---|---|
| #1 | Basic communication technologies |
| # | Technology | |
|---|---|---|
| #1 | Generation of oscillations | |
| #2 | Automatic control of oscillations |
| # | Name | Total Patents |
|---|---|---|
| #1 | Alwin Hahnel | 13 |
| Publication | Filing date | Title |
|---|---|---|
| US2981899A | Frequency divider | |
| US2967277A | Frequency divider | |
| US2903651A | Spectrum generator | |
| US2911596A | Frequency multiplier | |
| US2831116A | Regenerative frequency divider | |
| US2831115A | Frequency control circuit | |
| US2852679A | U. h. f. spectrum generator and frequency multiplier | |
| US2810074A | Frequency control system for oscillators | |
| US2745963A | Frequency multiplier | |
| US2868976A | Spectrum generator | |
| US2868977A | Crystal controlled spectrum generator | |
| US2816227A | Frequency multiplier | |
| US2730624A | Frequency multiplier circuit |