| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 11 | |
| #2 | Belgium | 4 | |
| #3 | Switzerland | 3 | |
| #4 | Germany | 1 | |
| #5 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Domestic stoves for solid fuels | |
| #2 | Domestic stoves | |
| #3 | Burners | |
| #4 | Ignition and extinguishing | |
| #5 | Solid fuel combustion |
| # | Name | Total Patents |
|---|---|---|
| #1 | De Ciney Les Forges | 3 |
| #2 | Roger Patou | 1 |
| #3 | Challet Etienne | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB764466A | Improvements in or relating to fuel oil burners | |
| DE830101C | Heater. |