F03G 4/04
Devices for producing mechanical power from geothermal energy: with deep-well turbo pump
Official title: with deep-well turbo pump
F03G4/04 (Devices for producing mechanical power from geothermal energy: with deep-well turbo pump) appears on 4 US grants and 6 published applications in this corpus.
Search patents in F03G- Granted patents
- 4
- Published applications
- 6
- Assignees
- 3
- Inventors
- 9
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
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- Heat exchange circuit for a geothermal plant31 Oct 2023US 11,802,716 B2TURBODEN S. p. A.
- Ultra deep hydroelectric/geothermal power plant20 Nov 2018US 10,132,299 B2
- Drilling equipment powered by geothermal energy29 Aug 2024US 2024/0287970 A1EnhancedGEO Holdings, LLC
- Apparatus and methods for producing electricity using geothermal energy23 May 2024US 2024/0167461 A1Geogen Technologies Inc.
- Solution mined cavity system10 Nov 2022US 2022/0356862 A1
- Heat exchange circuit for a geothermal plant16 Jun 2022US 2022/0186984 A1TURBODEN S. p. A.
- Ultra deep hydroelectric/geothermal power plant12 Apr 2018US 2018/0100491 A1
Most cited
By later US patents
No patent in this class has been cited by a later US patent yet.