| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 12 | |
| #2 | United States | 6 | |
| #3 | Germany | 5 | |
| #4 | United Kingdom | 4 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Feeding fuel to combustion device | |
| #2 | Supplying fuel to combustion device | |
| #3 | Solid fuel combustion | |
| #4 | Sawing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ratel Maurice | 11 |
| #2 | Maurice Ratel | 6 |
| #3 | Parot Jean | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB293468A | Improvements in furnaces with mechanical stokers | |
| US1867474A | Stoker | |
| GB175977A | Improvements relating to underfeed stokers | |
| US1635501A | Automatic stoker | |
| US1539369A | Underfeed stoker | |
| US1389982A | Automatic stoker of the underfeed type | |
| GB151001A | Improvements in furnaces of the underfeed type | |
| US1539208A | Underfeed stoker | |
| GB145458A | Improvements in underfeed furnaces | |
| US1366098A | Mechanical furnace of the underfeed type |