| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 8 | |
| #2 | United Kingdom | 3 | |
| #3 | Canada | 2 | |
| #4 | France | 2 | |
| #5 | Austria | 1 | |
| #6 | Switzerland | 1 | |
| #7 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic communication technologies | |
| #2 | Electrical machinery and energy | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Amplifiers | |
| #2 | Electric discharge tubes | |
| #3 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Maclaren Fred B | 4 |
| #2 | Francis Stromeyer Charles | 3 |
| #3 | Gourgues Aceves Julius | 2 |
| #4 | Samuel Ruben | 1 |
| #5 | Holding Company Revelation Pat | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2256177A | Thermionic tube and circuit | |
| US1953455A | Wave transmission system | |
| US2070071A | Electrical transmission system | |
| US2154783A | Electrical transmission system | |
| US2051396A | Electrical circuit | |
| US2113263A | Electrical transmission system | |
| GB363430A | Improvements in electron discharge devices | |
| DE630090C | Amplifier circuit | |
| US2002207A | Electron device | |
| US1959540A | Method and means for increasing the power output of a thermionic tube | |
| CA323114A | Thermionic tube output | |
| CA333440A | Electron device |