- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F03G - Spring, weight, inertia, or like motorsmechanical-power-producing devices or mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G 4/00 - Devices for producing mechanical power from geothermal energy
Patent holdings for IPC class F03G 4/00
Total number of patents in this class: 299
10-year publication summary
|
7
|
4
|
7
|
8
|
6
|
9
|
47
|
48
|
69
|
45
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ice Thermal Harvesting, LLC | 75 |
41 |
| Fuji Electric Co., Ltd. | 5160 |
12 |
| EnhancedGEO Holdings, LLC | 74 |
12 |
| Sage Geosystems Inc. | 28 |
11 |
| Geothermal Technologies, Inc. | 16 |
8 |
| Roda Energy Corporation | 12 |
8 |
| Eavor Technologies Inc. | 87 |
7 |
| Good Water Energy Ltd | 31 |
7 |
| GreenFire Energy Inc. | 23 |
6 |
| OneSubsea IP UK Limited | 421 |
6 |
| Halliburton Energy Services, Inc. | 20911 |
4 |
| Mitsubishi Hitachi Power Systems, Ltd. | 993 |
4 |
| Helmerich & Payne Technologies, LLC | 102 |
4 |
| Saltkraft ApS | 11 |
4 |
| Lochterra Inc. | 5 |
4 |
| Scinet Company Ltd. | 4 |
4 |
| Mitsubishi Heavy Industries, Ltd. | 8752 |
3 |
| Chevron U.S.A. Inc. | 3967 |
3 |
| Her Majesty the Queen in right of Canada, as represented by the Minister of Natural Resources | 105 |
3 |
| Onesubsea, LLC | 59 |
3 |
| Other owners | 145 |