F24T 10/17
Using tubes closed at one end, i.e. return-type tubes
Official title: using tubes closed at one end, i.e. return-type tubes
F24T10/17 (Using tubes closed at one end, i.e. return-type tubes) appears on 165 US grants and 245 published applications in this corpus.
Search patents in F24T- Granted patents
- 165
- Published applications
- 245
- Assignees
- 127
- Inventors
- 362
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 3 |
| 2007 | 0 | 6 |
| 2008 | 6 | 9 |
| 2009 | 0 | 6 |
| 2010 | 1 | 12 |
| 2011 | 4 | 16 |
| 2012 | 7 | 5 |
| 2013 | 1 | 13 |
| 2014 | 2 | 4 |
| 2015 | 7 | 10 |
| 2016 | 2 | 6 |
| 2017 | 5 | 6 |
| 2018 | 7 | 6 |
| 2019 | 4 | 9 |
| 2020 | 8 | 11 |
| 2021 | 7 | 16 |
| 2022 | 7 | 10 |
| 2023 | 16 | 21 |
| 2024 | 15 | 29 |
| 2025 | 22 | 29 |
| 2026 | 14 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and methods for enhanced thermal syphoning8 Sep 2026US 12,729,884 B2Good Water Energy Ltd.
- Apparatus and methods for producing electricity using geothermal energy11 Aug 2026US 12,704,114 B2Geogen Technologies 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.
- Closed well loop for a geothermal system30 Jun 2026US 12,669,268 B2Schlumberger Technology Corporation
- Geothermal energy system8 Oct 2026US 2026/0309372 A1Stoic Transitional Resources Inc.
- Geothermal energy system1 Oct 2026US 2026/0298503 A1Stoic Transitional Resources Inc.
- A geothermal hydrogen production and compression system20 Aug 2026US 2026/0242246 A1Good Water Energy Ltd.
- Geothermal cooling system13 Aug 2026US 2026/0235328 A1Solution Energy Technology, Inc.
- Method and apparatus to install a geothermal heat exchanger into a magma pool30 Jul 2026US 2026/0218686 A1
Most cited
By later US patents
- Fluid treatment apparatus and heat exchanger77US 4,671,351 AVerTech Treatment Systems, Inc. · 1987
- Geothermal heating system and method of installing the same75US 4,286,651 AEnvironmental Impact Research Group · 1981
- Insulated prestressed conduit string for heated fluids69US 4,340,245 AConoco Inc. · 1982
- Earth storage structural energy system and process for constructing a thermal storage well65US 4,392,531 A1983
- Arrangement for effecting an energy exchange between earth soil and an energy exchanger62US 5,738,164 AGeohil AG · 1998