| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Australia | 2 | |
| #2 | Bulgaria | 1 | |
| #3 | Brazil | 1 | |
| #4 | Canada | 1 | |
| #5 | China | 1 | |
| #6 | Czechia | 1 | |
| #7 | EPO (European Patent Office) | 1 | |
| #8 | Croatia | 1 | |
| #9 | Hungary | 1 | |
| #10 | Israel | 1 | |
| #11 | Mexico | 1 | |
| #12 | Norway | 1 | |
| #13 | New Zealand | 1 | |
| #14 | Poland | 1 | |
| #15 | Serbia | 1 | |
| #16 | Slovenia | 1 | |
| #17 | Slovakia | 1 | |
| #18 | United States | 1 | |
| #19 | WIPO (World Intellectual Property Organization) | 1 | |
| #20 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Reduction of greenhouse gas emissions | |
| #2 | Geothermal collectors |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hildebrand Hans | 18 |
| #2 | Hilderbrand Hans | 1 |
| Publication | Filing date | Title |
|---|---|---|
| YU30503A | Method and system for exchanging earth energy between earthly bodies and an energy exchanger especially to produce an electric current |