| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 6 | |
| #2 | Germany | 5 | |
| #3 | Austria | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | Spain | 1 | |
| #6 | France | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Foods and drinks |
| # | Technology | |
|---|---|---|
| #1 | Domestic stoves for solid fuels | |
| #2 | Domestic stoves | |
| #3 | Fluid heaters | |
| #4 | Foods |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rueegg Walter | 8 |
| #2 | Walter Rueegg | 4 |
| #3 | Walter Rueff | 1 |
| Publication | Filing date | Title |
|---|---|---|
| ATA715675A | Heating fireplace with a heat exchanger | |
| GB999335A | Improvements in or relating to fireplaces | |
| GB190711392A | Process for the Production of a Chestnut Pudding Preparation. |