| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 8 | |
| #2 | Switzerland | 4 | |
| #3 | Germany | 3 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Fluid heaters | |
| #2 | Domestic stoves | |
| #3 | Domestic heating systems | |
| #4 | Casings for combustion chambers | |
| #5 | Solid fuel combustion | |
| #6 | Domestic stoves for solid fuels |
| # | Name | Total Patents |
|---|---|---|
| #1 | Handlechner Hermann | 4 |
| #2 | Fritz Kauer | 2 |
| #3 | Lackner August | 2 |
| #4 | Lackner August Ing | 2 |
| #5 | Hanlechner Hermann | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ATA32692A | Low-temperature heating boiler for hot-water central heating systems and the like | |
| DE3901212A1 | Furnace for burning solid fuels, in particular for central heating boilers | |
| ATA396682A | Boiler for solid fuels, in particular floor boilers | |
| ATA804578A | Boiler | |
| DE2612775A1 | Boiler for use with alternative fuels - has system of internal water pockets and grate with water circulation (OE150476) |