| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 8 | |
| #2 | Norway | 3 | |
| #3 | Canada | 2 | |
| #4 | Denmark | 2 | |
| #5 | Finland | 2 | |
| #6 | WIPO (World Intellectual Property Organization) | 2 | |
| #7 | Germany | 1 | |
| #8 | EPO (European Patent Office) | 1 | |
| #9 | Spain | 1 | |
| #10 | France | 1 | |
| #11 | United Kingdom | 1 | |
| #12 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Electrical machinery and energy | |
| #3 | Mechanical elements | |
| #4 | Control | |
| #5 | Consumer goods | |
| #6 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Fluid heaters | |
| #2 | Domestic stoves | |
| #3 | Special electric heating or lighting | |
| #4 | Domestic heating systems | |
| #5 | Pipes | |
| #6 | Systems controlling non-electric variables | |
| #7 | Ice-boxes | |
| #8 | General building constructions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Lindholm Hans | 9 |
| #2 | Carlsson Gunnar | 6 |
| #3 | Sjoestedt Bertil | 6 |
| #4 | Lindholm H | 5 |
| #5 | Carlsson G | 2 |
| #6 | Sjoestedt B | 2 |
| #7 | Lindholm H B | 2 |
| #8 | Sjostedt B | 1 |
| #9 | Carlsson E G | 1 |
| #10 | Sjostedt Bertil | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO8701788A1 | Pipe coupling for refrigerant fluid pipes | |
| SE8305668D0 | A regulatory device for defrosting of the cooler battery in a warm air exchanger pump | |
| CA1160854A | Device for recovery of heat | |
| US4416121A | Device for the recovery of heat | |
| DE2450297A1 | HEATING DEVICE |