| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 18 | |
| #2 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Electrical machinery and energy | |
| #3 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Fluid heaters | |
| #2 | Burners | |
| #3 | Domestic stoves | |
| #4 | Special electric heating or lighting | |
| #5 | Venting or aerating devices | |
| #6 | Fluid fuel combustion | |
| #7 | Domestic heating systems | |
| #8 | Supplying fuel to combustion device | |
| #9 | Controlling combustion | |
| #10 | Resistors |
| Publication | Filing date | Title |
|---|---|---|
| GB504685A | An improvement in or relating to gas-heated water heaters |