| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Hungary | 2 | |
| #2 | Canada | 1 | |
| #3 | Czechoslovakia | 1 | |
| #4 | German Democratic Republic | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | Finland | 1 | |
| #7 | Norway | 1 | |
| #8 | Poland | 1 | |
| #9 | Romania | 1 | |
| #10 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Fluid heaters | |
| #2 | Solid fuel combustion | |
| #3 | Grates |
| # | Name | Total Patents |
|---|---|---|
| #1 | Biro Ernoe | 6 |
| #2 | Biro Erno | 5 |
| #3 | Biro Ernoe Jr | 2 |
| #4 | Biro Jr Erno | 2 |
| #5 | Biro Jun Ernoe | 1 |
| Publication | Filing date | Title |
|---|---|---|
| HU0500700D0 | Furnace with multipurpose combustion chamber for biomass | |
| HU178846B | Stoker for firing solid fuel first for fulfilling the heat demand of family houses and single aparatments or smaller group of them |