F24T 10/30
Geothermal collectors: using underground reservoirs for accumulating working fluids or intermediate fluids
Official title: using underground reservoirs for accumulating working fluids or intermediate fluids
F24T10/30 (Geothermal collectors: using underground reservoirs for accumulating working fluids or intermediate fluids) appears on 286 US grants and 274 published applications in this corpus.
Search patents in F24T- Granted patents
- 286
- Published applications
- 274
- Assignees
- 167
- Inventors
- 525
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 10 | 0 |
| 1978 | 8 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 8 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 5 |
| 2005 | 2 | 1 |
| 2006 | 2 | 2 |
| 2007 | 3 | 5 |
| 2008 | 0 | 3 |
| 2009 | 4 | 16 |
| 2010 | 4 | 17 |
| 2011 | 3 | 14 |
| 2012 | 5 | 15 |
| 2013 | 5 | 15 |
| 2014 | 10 | 20 |
| 2015 | 9 | 25 |
| 2016 | 14 | 11 |
| 2017 | 14 | 5 |
| 2018 | 8 | 8 |
| 2019 | 6 | 7 |
| 2020 | 5 | 8 |
| 2021 | 10 | 12 |
| 2022 | 10 | 12 |
| 2023 | 11 | 14 |
| 2024 | 22 | 30 |
| 2025 | 22 | 17 |
| 2026 | 9 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and systems for increasing heat transfer in geothermal systems28 Jul 2026US 12,693,046 B2GreenFire Energy Inc.
- Geothermal energy system21 Jul 2026US 12,687,324 B2Stoic Transitional Resources Inc.
- Geothermal energy system14 Jul 2026US 12,680,733 B2Stoic Transitional Resources Inc.
- Systems for generating energy from geothermal sources and methods of operating and constructing same30 Jun 2026US 12,669,113 B2Roda Energy Corporation
- Systems for generating energy from geothermal sources and methods of operating and constructing same30 Jun 2026US 12,669,269 B2Roda Energy Corporation
- Geothermal energy system8 Oct 2026US 2026/0309372 A1Stoic Transitional Resources Inc.
- Geothermal energy system1 Oct 2026US 2026/0298503 A1Stoic Transitional Resources Inc.
- Pondless hydromechanical storage system24 Sep 2026US 2026/0286941 A1Sage Geosystems Inc.
- Systems for Generating Energy from Geothermal Sources and Methods of Operating and Constructing Same24 Sep 2026US 2026/0287213 A1Roda Energy Corporation
- Systems for Generating Energy from Geothermal Sources and Methods of Operating and Constructing Same10 Sep 2026US 2026/0266266 A1Roda Energy Corporation
Most cited
By later US patents
- Method of recovering energy from subsurface petroleum reservoirs271US 4,031,956 AIn Situ Technology, Inc. · 1977
- Geothermal petroleum refining126US 4,248,306 A1981
- Double walled insulated tubing and method of installing same121US 5,862,866 ARoxwell International Limited · 1999
- Geothermal heat pump system116US 5,758,514 AEnvirotherm Heating & Cooling Systems, Inc. · 1998
- Geothermal heating and cooling system with solar heating115US 7,234,314 B1Earth to Air Systems, LLC · 2007