| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 12 | |
| #2 | Germany | 2 | |
| #3 | Austria | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | France | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology | |
| #2 | Thermal processes | |
| #3 | Agriculture | |
| #4 | Materials and metallurgy | |
| #5 | Engines, pumps and turbines | |
| #6 | Civil engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fritz Feller | 9 |
| #2 | Feller Fritz | 7 |
| Publication | Filing date | Title |
|---|---|---|
| EP0048694A2 | System of channels | |
| CH626502A5 | Apparatus for the cultivation of plants | |
| DE2604684A1 | SOLAR PANEL | |
| CH603029A5 | Soil heating and irrigation system | |
| GB778317A | A ceiling, wall or floor heating system |