Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6000471 | Hole in the ground for transfer of geothermal energy to an energy-carrying liquid and a method for production of the hole | — | 1999-12-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6000471 | Hole in the ground for transfer of geothermal energy to an energy-carrying liquid and a method for production of the hole | — | 1999-12-14 |