F03G 4/045
Devices for producing mechanical power from geothermal energy: with heat pumps
Official title: {with heat pumps}
F03G4/045 (Devices for producing mechanical power from geothermal energy: with heat pumps) appears on 23 US grants and 27 published applications in this corpus.
Search patents in F03G- Granted patents
- 23
- Published applications
- 27
- Assignees
- 27
- Inventors
- 44
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 1 | 2 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 3 |
| 2015 | 0 | 1 |
| 2016 | 4 | 1 |
| 2017 | 1 | 1 |
| 2018 | 2 | 2 |
| 2019 | 1 | 0 |
| 2020 | 2 | 3 |
| 2021 | 3 | 1 |
| 2022 | 2 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems for generating energy from geothermal sources and methods of operating and constructing same30 Jun 2026US 12,669,113 B2Roda Energy Corporation
- Jet pump apparatus and methods for standing column well systems and deployment thereof3 Jun 2025US 12,320,555 B2Her Majesty the Queen In Right of Canada AS Represented By the Minister of Natual Resources
- Hybrid thermodynamic compressor12 Sep 2023US 11,754,061 B2Boostheat
- Hybrid solar-geothermal power generation system25 Oct 2022US 11,480,160 B1King Abdullah City for Atomic & Renewable Energy (K.A. Care)
- Downhole geothermal power generation and storage13 Sep 2022US 11,441,394 B1Baker Hughes Oilfield Operations LLC
- Systems for Generating Energy from Geothermal Sources and Methods of Operating and Constructing Same10 Sep 2026US 2026/0266266 A1Roda Energy Corporation
- Device for exchanging geothermal energy with an aquifer which is near the surface, and thermal power station comprising at least one such device20 Aug 2026US 2026/0243235 A1Usc-Consulting GmbH
- System and method for utilising geothermal energy26 Jun 2025US 2025/0207563 A1MAN Energy Solutions SE
- Systems for Generating Energy from Geothermal Sources and Methods of Operating and Constructing Same12 Jun 2025US 2025/0188911 A1Roda Energy Corporation
- Hybrid thermodynamic compressor9 Jun 2022US 2022/0178359 A1Boostheat
Most cited
By later US patents
- Heat-electricity combined production system that utilizes solar energy and geothermal heat51US 9,243,616 B2Korea Institute of Energy Research · 2016
- Hybrid solar-geothermal power generation system49US 11,480,160 B1King Abdullah City for Atomic & Renewable Energy (K.A. Care) · 2022
- Geothermal energy system and method of operation21US 9,556,856 B2Greenfield Master Ipco Limited · 2017
- Steam-electrical generating system using geothermal heat source19US 4,343,999 ADuke Power Company · 1982
- Ground source heat pump well field design and control strategy for large tonnage19US 7,647,773 B1American Refining Group, Inc. · 2010