| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 |
| # | Industry | |
|---|---|---|
| #1 | Basic communication technologies | |
| #2 | Machine tools | |
| #3 | Electrical machinery and energy | |
| #4 | Audio-visual technology | |
| #5 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Clark Jesse H | 5 |
| #2 | Owens Orville R | 3 |
| #3 | Wells Albert S | 3 |
| #4 | Kelly Johnson John | 2 |
| #5 | Canon Hartman B | 1 |
| #6 | Bradshaw Edwin G | 1 |
| #7 | Swallow Joseph L | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2239067A | Tuning mechanism for radio receiving sets | |
| US2229404A | Permeability tuning | |
| US2183985A | Mounting for radio condensers | |
| US2130836A | Dial tuning device | |
| US2112734A | Tuning dial for radio receiving sets | |
| US2128783A | Bent plywood | |
| US2171655A | Frequency drift compensator | |
| US2242768A | Tuner for radio receiving sets | |
| US2074854A | Bent plywood | |
| US2137035A | Radio receiving set | |
| US2112745A | Tuning dial for radio receiving sets | |
| US2081638A | Round corner |