| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 5 | |
| #2 | Germany | 4 | |
| #3 | Austria | 1 | |
| #4 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Feeding fuel to combustion device | |
| #2 | Milling | |
| #3 | Burners | |
| #4 | Fluid fuel combustion |
| Publication | Filing date | Title |
|---|---|---|
| DE550805C | Grinding plant with mill and air classifier | |
| DE420769C | Device for the combustion of dust-like, solid fuels | |
| GB182474A | Improved method and apparatus for the combustion of pulverised solid fuels | |
| DE551125C | Roller mill |