| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Belgium | 1 | |
| #2 | Germany | 1 | |
| #3 | Denmark | 1 | |
| #4 | Finland | 1 | |
| #5 | France | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Italy | 1 | |
| #8 | Luxembourg | 1 | |
| #9 | Monaco | 1 | |
| #10 | Netherlands | 1 | |
| #11 | Norway | 1 | |
| #12 | Portugal | 1 | |
| #13 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | Domestic stoves for solid fuels |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gundersen Leif Kurt | 6 |
| #2 | Gundersen L K | 2 |
| #3 | Gundersen Leif-Kurt | 1 |
| Publication | Filing date | Title |
|---|---|---|
| BE897390A | Improvements on fireplaces | |
| FR2542068A1 | Fireplace with supplementary means for diffusion of hot air |