| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Sweden | 4 | |
| #2 | Denmark | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Finland | 2 | |
| #5 | Norway | 2 | |
| #6 | United States | 2 | |
| #7 | WIPO (World Intellectual Property Organization) | 2 | |
| #8 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Installations for obtaining water | |
| #2 | Unspecified technologies | |
| #3 | Domestic heating systems | |
| #4 | Fire-fighting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Westerberg Anders | 16 |
| #2 | Henning Sten | 1 |
| Publication | Filing date | Title |
|---|---|---|
| WO8807608A1 | Heat exchanging apparatus | |
| EP0349575A1 | Method of preventing freezing in pipes, and a piping system for carrying out the method. |