| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 13 | |
| #2 | Sweden | 3 | |
| #3 | Germany | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | Italy | 2 | |
| #6 | Argentina | 1 | |
| #7 | Belgium | 1 | |
| #8 | Canada | 1 | |
| #9 | Switzerland | 1 | |
| #10 | Spain | 1 | |
| #11 | Mexico | 1 | |
| #12 | Norway | 1 | |
| #13 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Environmental technology | |
| #3 | Engines, pumps and turbines | |
| #4 | Electrical machinery and energy | |
| #5 | Civil engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Brola Gabriel | 6 |
| #2 | Brola G | 6 |
| #3 | Gabriel Brola | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2631196A1 | SUN-HEATABLE BOILER | |
| GB1534064A | Process and equipment for transforming heat at a relatively low temperature into power or energy | |
| GB1391861A | Radiant heaters |