| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 4 | |
| #2 | Austria | 2 | |
| #3 | France | 2 | |
| #4 | Canada | 1 | |
| #5 | Germany | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Environmental technology | |
| #3 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Domestic heating systems | |
| #2 | Air-conditioning | |
| #3 | Solar heat collectors | |
| #4 | Kitchen equipment | |
| #5 | Reduction of greenhouse gas emissions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Leuenberger Paul | 5 |
| #2 | Paul Leuenberger | 3 |
| #3 | Heinrich Fuerst | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CH635417A5 | Solar heat collector | |
| US3620450A | Electrically heated central hot water heating system | |
| GB1255847A | Improvements in and relating to central heating systems | |
| CA898764A | Central heating systems |