| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 21 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Audio-visual technology | |
| #3 | Telecommunications | |
| #4 | Basic communication technologies | |
| #5 | Optics |
| # | Technology | |
|---|---|---|
| #1 | Electric discharge tubes | |
| #2 | Television | |
| #3 | Transmission | |
| #4 | Optical systems | |
| #5 | Tuning resonant circuits | |
| #6 | Amplifiers |
| # | Name | Total Patents |
|---|---|---|
| #1 | Batchelor John C | 21 |
| Publication | Filing date | Title |
|---|---|---|
| US2301504A | Combination receiver | |
| US2307661A | Electro-optical method and apparatus | |
| US2310671A | Image producer | |
| US2264172A | Television receiver | |
| US2238381A | Image analyzer | |
| US2247112A | Image reproducer | |
| US2239769A | Electrooptical reproducer | |
| US2186570A | Television reproducer | |
| US2205461A | Entertainment receiver | |
| US2146366A | Electronic apparatus | |
| US2068002A | Entertainment receiver | |
| US2196691A | Electro-optical apparatus | |
| US2203347A | Electro-optical method and apparatus | |
| US2124225A | Luminescent screen | |
| US2125599A | Fluorescent structure | |
| US2124224A | Electronic tube | |
| US2140730A | System of communication | |
| US2147138A | Impedance unit | |
| US2113473A | Electrooptical method and apparatus | |
| US2119309A | Method of forming a fluorescent screen |