F03G 4/063
Devices for producing mechanical power from geothermal energy: with energy storage devices
Official title: {with energy storage devices}
F03G4/063 (Devices for producing mechanical power from geothermal energy: with energy storage devices) appears on 75 US grants and 76 published applications in this corpus.
Search patents in F03G- Granted patents
- 75
- Published applications
- 76
- Assignees
- 30
- Inventors
- 93
- Latest grant
- 2 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 | 0 | 0 |
| 1983 | 1 | 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 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 3 |
| 2014 | 1 | 4 |
| 2015 | 3 | 2 |
| 2016 | 0 | 2 |
| 2017 | 3 | 2 |
| 2018 | 2 | 0 |
| 2019 | 0 | 4 |
| 2020 | 2 | 5 |
| 2021 | 6 | 3 |
| 2022 | 10 | 9 |
| 2023 | 9 | 8 |
| 2024 | 18 | 17 |
| 2025 | 7 | 7 |
| 2026 | 9 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Thermal energy storage system coupled with thermal power cycle systems2 Jun 2026US 12,644,396 B2Rondo Energy, Inc.
- System for supplying electricity, heat, and water using a Stirling engine powered by sustainable energy sources26 May 2026US 12,638,196 B2
- Energy storage system and alumina calcination applications21 Apr 2026US 12,607,136 B2Rondo Energy, Inc.
- Thermal energy storage system for use with a low temperature heat source and a thermal power cycle system21 Apr 2026US 12,607,170 B2Rondo Energy, Inc.
- Thermal energy storage system coupled with thermal power cycle systems31 Mar 2026US 12,590,549 B1Rondo Energy, Inc.
- A geothermal hydrogen production and compression system20 Aug 2026US 2026/0242246 A1Good Water Energy Ltd.
- System and method for coupling geothermal energy storage with coalbed methane extraction in unmineable coalbed6 Aug 2026US 2026/0226814 A1China University of Geosciences (Wuhan)
- Energy storage system and alumina calcination applications18 Jun 2026US 2026/0168411 A1Rondo Energy, Inc.
- System for supplying electricty, heat, and water using a stirling engine powered by sustainable energy sources5 Feb 2026US 2026/0036310 A1
- Thermal Energy Storage System for Use with a Low Temperature Heat Source and a Thermal Power Cycle System15 Jan 2026US 2026/0015994 A1Rondo Energy, Inc.
Most cited
By later US patents
- Geothermal power plant with intermediate superheating and simultaneous generation of thermal and electrical energy66US 3,986,362 A1976
- Earth storage structural energy system and process for constructing a thermal storage well65US 4,392,531 A1983
- Methods for generating geothermal power in an organic Rankine cycle operation during hydrocarbon production based on working fluid temperature55US 11,187,212 B1ICE Thermal Harvesting, LLC · 2021
- Controller for controlling generation of geothermal power in an organic Rankine cycle operation during hydrocarbon production44US 11,255,315 B1ICE Thermal Harvesting, LLC · 2022
- Methods and systems for electric power generation using geothermal field enhancements44US 9,181,930 B2Skibo Systems LLC · 2015