F25J 2240/40
Expansion without extracting work, i.e. isenthalpic throttling
Official title: Expansion without extracting work, i.e. isenthalpic throttling, e.g. JT valve, regulating valve or venturi, or isentropic nozzle, e.g. Laval
F25J2240/40 (Expansion without extracting work, i.e. isenthalpic throttling) appears on 356 US grants and 379 published applications in this corpus.
Search patents in F25J- Granted patents
- 356
- Published applications
- 379
- Assignees
- 161
- Inventors
- 651
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 6 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 6 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 8 | 0 |
| 1997 | 11 | 0 |
| 1998 | 7 | 0 |
| 1999 | 5 | 0 |
| 2000 | 10 | 0 |
| 2001 | 13 | 1 |
| 2002 | 8 | 4 |
| 2003 | 4 | 6 |
| 2004 | 8 | 7 |
| 2005 | 1 | 3 |
| 2006 | 3 | 4 |
| 2007 | 3 | 6 |
| 2008 | 5 | 14 |
| 2009 | 4 | 10 |
| 2010 | 2 | 13 |
| 2011 | 4 | 12 |
| 2012 | 6 | 11 |
| 2013 | 1 | 15 |
| 2014 | 5 | 11 |
| 2015 | 4 | 18 |
| 2016 | 12 | 18 |
| 2017 | 13 | 47 |
| 2018 | 19 | 34 |
| 2019 | 24 | 22 |
| 2020 | 24 | 23 |
| 2021 | 13 | 28 |
| 2022 | 16 | 12 |
| 2023 | 18 | 19 |
| 2024 | 11 | 15 |
| 2025 | 17 | 12 |
| 2026 | 9 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method and a relative apparatus for producing liquified gases8 Sep 2026US 12,729,906 B2Fpt Industrial S.P.A.
- System for storing and producing energy to stabilize the power network26 May 2026US 12,638,234 B2Saipem S.P.A.
- Method and apparatus for liquefying a gas rich in carbon dioxide26 May 2026US 12,638,238 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Liquid nitrogen energy storage system21 Apr 2026US 12,607,399 B2Praxair Technology, Inc.
- Apparatus and method for harnessing energy from a wellbore to perform multiple functions while reducing emissions24 Feb 2026US 12,560,071 B2CNX Resources Corporation
- Cryogenic process for helium recovery from low helium-containing gas stream24 Sep 2026US 2026/0287252 A1Council of Scientific and Industrial Research
- Configurations and methods for ngl recovery for high nitrogen content feed gases13 Aug 2026US 2026/0235354 A1Fluor Technologies Corporation
- Hydrogen plant30 Jul 2026US 2026/0217529 A1Kawasaki Jukogyo Kabushiki Kaisha
- Liquefied hydrogen facility and method for operating same30 Jul 2026US 2026/0218979 A1Kawasaki Jukogyo Kabushiki Kaisha
- Method for liquefying a stream rich in co216 Jul 2026US 2026/0202124 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
Most cited
By later US patents
- Hydrocarbon gas processing125US 4,278,457 AThe Ortloff Corporation · 1981
- LNG production in cryogenic natural gas processing plants108US 5,615,561 AWilliams Field Services Company · 1997
- Hydrocarbon gas processing97US 4,171,964 AThe Ortloff Corporation · 1979
- Hydrocarbon gas processing92US 4,869,740 AElcor Corporation · 1989
- Removal of carbon dioxide from a feed stream by carbon dioxide solids separation89US 5,819,555 A1998