| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Norway | 3 | |
| #2 | Australia | 2 | |
| #3 | WIPO (World Intellectual Property Organization) | 2 | |
| #4 | Canada | 1 | |
| #5 | Czechia | 1 | |
| #6 | Denmark | 1 | |
| #7 | EPO (European Patent Office) | 1 | |
| #8 | Finland | 1 | |
| #9 | United Kingdom | 1 | |
| #10 | Poland | 1 | |
| #11 | Russian Federation | 1 | |
| #12 | Sweden | 1 | |
| #13 | Slovakia | 1 | |
| #14 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Environmental technology | |
| #3 | Electrical machinery and energy | |
| #4 | Civil engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Voelstad Ove Charles | 8 |
| #2 | Volstad Ove Charles | 6 |
| #3 | Volstad Ove Ch | 1 |
| #4 | Volstad Ove C | 1 |
| #5 | V Lstad Ove Charles | 1 |
| #6 | Vel Stad Ove Sharles | 1 |
| Publication | Filing date | Title |
|---|---|---|
| PL317429A1 | Venting device with a light source for preliminary heating up admitted air | |
| AU1446292A | Temperature regulation of various building parts of houses |