| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | United Kingdom | 4 | |
| #3 | France | 2 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Audio-visual technology | |
| #3 | Basic communication technologies | |
| #4 | Machine tools | |
| #5 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Electric discharge tubes | |
| #2 | Television | |
| #3 | Amplifiers | |
| #4 | Unspecified technologies | |
| #5 | Soldering, welding and flame cutting | |
| #6 | Pulse technique |
| # | Name | Total Patents |
|---|---|---|
| #1 | Farnsworth Philo T | 2 |
| #2 | Gardner Bernard C | 2 |
| #3 | Nina Anthony A | 1 |
| #4 | Varian Russell H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB463896A | Improvements in or relating to oscillights or cathode ray tubes | |
| US2000570A | Separable tube connecter | |
| US2020025A | Cathode ray tube | |
| GB397759A | Improvements in valved amplifying circuits | |
| US1979539A | Method of production of refractory metal leaf | |
| US1975143A | Thermionic vacuum tube | |
| US2051372A | Scanning and synchronizing system |