| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 11 | |
| #2 | Canada | 2 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic communication technologies | |
| #2 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Measuring electric variables | |
| #2 | Modulation | |
| #3 | Generation of oscillations | |
| #4 | Measuring length, angles and areas | |
| #5 | Amplifiers |
| # | Name | Total Patents |
|---|---|---|
| #1 | Crosby Murray G | 3 |
| #2 | Mccool William A | 2 |
| #3 | Loughlin William D | 2 |
| #4 | Barber Alfred W | 2 |
| #5 | Piip Ants T | 1 |
| #6 | Hill Donald M | 1 |
| #7 | Cullen Moore William | 1 |
| #8 | Snow Harold A | 1 |
| #9 | Wheeler Harold A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2887651A | Induced current testing apparatus | |
| US2862178A | Test instrument calibrating apparatus | |
| US2681434A | Frequency meter | |
| US2657359A | Frequency or phase modulating system | |
| US2547650A | Conductance meter | |
| US2587493A | Modulated signal generator | |
| US2521694A | Variable reactance | |
| GB638137A | Improvements in and relating to phase or frequency modulating systems | |
| US2337759A | Delta q-meter | |
| US2337533A | Signal generator | |
| US2325933A | Wide range amplifier | |
| US2137787A | Method and apparatus for electrical measurements | |
| CA478484A | Conductance meters | |
| CA478114A | Variable reactances |