| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 6 | |
| #2 | France | 3 | |
| #3 | United Kingdom | 3 |
| # | Industry | |
|---|---|---|
| #1 | Basic communication technologies | |
| #2 | Computer technology | |
| #3 | Measurement | |
| #4 | Control |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hardway Jr Edward V | 3 |
| #2 | Bravenec Frank R | 2 |
| #3 | Cutler Royce L | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3319252A | Graphic recorder for sequential plotting of analog values | |
| US3299432A | X-y recorder plotting circuit | |
| FR1326723A | Logarithmic converter | |
| GB991636A | Logarithmic converter | |
| US3221160A | Logarithmic converter | |
| FR1316757A | Logarithmic frequency discriminating electrical assemblies | |
| US3210530A | Logarithmic converter | |
| US3120647A | Logarithmic frequency discriminator circuits | |
| US3047784A | Supply voltage variation compensated servosystem |