- 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: 351
10-year publication summary
|
6
|
10
|
13
|
10
|
10
|
53
|
56
|
78
|
61
|
40
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Ice Thermal Harvesting, LLC | 77 |
41 |
| Sage Geosystems Inc. | 44 |
17 |
| Fuji Electric Co., Ltd. | 5533 |
16 |
| EnhancedGEO Holdings, LLC | 77 |
15 |
| Good Water Energy Ltd | 44 |
13 |
| Roda Energy Corporation | 17 |
11 |
| Geothermal Technologies, Inc. | 15 |
9 |
| GreenFire Energy Inc. | 31 |
7 |
| Eavor Technologies Inc. | 111 |
7 |
| Helmerich & Payne Technologies, LLC | 123 |
7 |
| OneSubsea IP UK Limited | 440 |
6 |
| Schlumberger Technology Corporation | 11940 |
5 |
| Halliburton Energy Services, Inc. | 21292 |
4 |
| Mitsubishi Heavy Industries, Ltd. | 9204 |
4 |
| Mitsubishi Hitachi Power Systems, Ltd. | 991 |
4 |
| Lochterra Inc. | 5 |
4 |
| Element Technical Services Inc. | 7 |
4 |
| Scinet Company Ltd. | 4 |
4 |
| Chevron U.S.A. Inc. | 4170 |
3 |
| Colorado School of Mines | 184 |
3 |
| Other owners | 167 |