| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 9 | |
| #2 | United Kingdom | 3 | |
| #3 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Electrical machinery and energy | |
| #3 | Environmental technology | |
| #4 | Transport |
| # | Name | Total Patents |
|---|---|---|
| #1 | Highfield Frank Wootton | 3 |
| #2 | Highfield Frank William | 2 |
| #3 | William Highfield Frank | 1 |
| #4 | Highfield Frank William Wootto | 1 |
| #5 | Edgar Taylor Herbert | 1 |
| #6 | Highfield Frank Wooton | 1 |
| #7 | Highfield Frank William Wooton | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB437269A | Improvements relating to voltage regulators for road and rail vehicle electric lighting systems | |
| GB428711A | Improvements relating to ammeters and other like electric current measuring or indicating instruments | |
| GB229427A | Improvements in electrical testing apparatus for fluid pressure engines |