| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 12 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Audio-visual technology | |
| #3 | Electrical machinery and energy | |
| #4 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Radio navigation | |
| #2 | Television | |
| #3 | Theater devices | |
| #4 | Electric discharge tubes | |
| #5 | Geophysics | |
| #6 | Measuring electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Goldstein Maxwell K | 12 |
| Publication | Filing date | Title |
|---|---|---|
| US2607034A | Signal generator system | |
| US2654085A | Detector system | |
| US2575340A | Determination of ground constants | |
| US2544669A | Direction finder | |
| US2485585A | Direction finder | |
| US2452564A | Direction finder | |
| US2519366A | Direction finder | |
| US2405203A | Phase type direct indicating direction finder | |
| US2305614A | Phase meter | |
| US2324773A | Color reproduction | |
| US2184075A | Color transmission | |
| US2052617A | Electron discharge device |