F25J 2240/02
Expansion of a process fluid in a work-extracting turbine
Official title: Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream
F25J2240/02 (Expansion of a process fluid in a work-extracting turbine) appears on 642 US grants and 724 published applications in this corpus.
Search patents in F25J- Granted patents
- 642
- Published applications
- 724
- Assignees
- 227
- Inventors
- 1,034
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 7 | 0 |
| 1980 | 3 | 0 |
| 1981 | 7 | 0 |
| 1982 | 6 | 0 |
| 1983 | 2 | 0 |
| 1984 | 13 | 0 |
| 1985 | 10 | 0 |
| 1986 | 7 | 0 |
| 1987 | 14 | 0 |
| 1988 | 6 | 0 |
| 1989 | 8 | 0 |
| 1990 | 7 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 10 | 0 |
| 1997 | 11 | 0 |
| 1998 | 8 | 0 |
| 1999 | 20 | 0 |
| 2000 | 10 | 0 |
| 2001 | 20 | 4 |
| 2002 | 14 | 11 |
| 2003 | 16 | 8 |
| 2004 | 6 | 19 |
| 2005 | 8 | 15 |
| 2006 | 12 | 19 |
| 2007 | 12 | 19 |
| 2008 | 12 | 19 |
| 2009 | 10 | 31 |
| 2010 | 8 | 36 |
| 2011 | 2 | 35 |
| 2012 | 7 | 29 |
| 2013 | 17 | 34 |
| 2014 | 17 | 25 |
| 2015 | 21 | 26 |
| 2016 | 19 | 31 |
| 2017 | 21 | 56 |
| 2018 | 26 | 54 |
| 2019 | 30 | 44 |
| 2020 | 36 | 43 |
| 2021 | 23 | 37 |
| 2022 | 30 | 24 |
| 2023 | 25 | 32 |
| 2024 | 25 | 31 |
| 2025 | 20 | 24 |
| 2026 | 15 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F25J 2240/10The fluid being airIndexing code93
- F25J 2240/12The fluid being nitrogenIndexing code78
- F25J 2240/04Multiple expansion turbines in parallelIndexing code46
- F25J 2240/22The fluid being oxygen enriched compared to airIndexing code7
- F25J 2240/20The fluid being oxygenIndexing code6
- F25J 2240/28The fluid being argon or crude argonIndexing code4
Recent patents
- Method and apparatus for cryogenic air separation8 Sep 2026US 12,729,907 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Comprehensive energy utilization system for coupling carbon capture, energy storage, and thermal power generation18 Aug 2026US 12,710,000 B2Exax Energy Technology (Shenzhen) Co., Ltd
- Method and plant for low temperature fractionation of air18 Aug 2026US 12,710,228 B2Linde Aktiengesellschaft
- Dehydrogenation and pyrolysis product recovery with a common refrigerant2 Jun 2026US 12,643,843 B2Uop LLC
- Standalone high-pressure heavies removal unit for LNG processing26 May 2026US 12,638,236 B2ConocoPhillips Company
- Cryogenic type boil-off gas reliquefaction system20 Aug 2026US 2026/0243505 A1Shanghai Marine Diesel Engine Research Institute
- System and method for the production and supply of a densified liquid oxygen product20 Aug 2026US 2026/0243506 A1
- Air separation device20 Aug 2026US 2026/0243509 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Configurations and methods for ngl recovery for high nitrogen content feed gases13 Aug 2026US 2026/0235354 A1Fluor Technologies Corporation
- Comprehensive energy utilization system for coupling carbon capture, energy storage, and thermal power generation9 Jul 2026US 2026/0193993 A1Exax Energy Technology (Shenzhen) Co., Ltd
Most cited
By later US patents
- Process for liquefaction of natural gas137US 6,023,942 AExxon Production Research Company · 2000
- Hydrocarbon gas processing136US 4,140,504 AThe Ortloff Corporation · 1979
- Hydrocarbon gas processing134US 5,568,737 AElcor Corporation · 1996
- Hydrocarbon gas processing125US 4,278,457 AThe Ortloff Corporation · 1981
- Hydrocarbon gas processing122US 6,182,469 B2Elcor Corporation · 2001