| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 3 | |
| #2 | Austria | 2 | |
| #3 | Canada | 2 | |
| #4 | Switzerland | 2 | |
| #5 | Germany | 2 | |
| #6 | Finland | 2 | |
| #7 | France | 2 | |
| #8 | Netherlands | 2 | |
| #9 | United States | 2 | |
| #10 | Belgium | 1 | |
| #11 | German Democratic Republic | 1 | |
| #12 | United Kingdom | 1 | |
| #13 | Japan | 1 | |
| #14 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Control | |
| #3 | Machines | |
| #4 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Christiansson Fingal | 11 |
| #2 | Christiansson O F C | 8 |
| Publication | Filing date | Title |
|---|---|---|
| US4171768A | Thermostat unit for central heating radiators | |
| CA1045099A | Thermostat unit for central heating radiators | |
| FI58550B | Thermostatreglerad radiatorventil foer ett- och tvaoroers vaermeledningssystem |