F25J 2240/00
Processes or apparatus involving steps for expanding of process streams
F25J2240/00 (Processes or apparatus involving steps for expanding of process streams) appears on 1,210 US grants and 1,305 published applications in this corpus.
Search patents in F25J- Granted patents
- 1,210
- Published applications
- 1,305
- Assignees
- 400
- Inventors
- 1,815
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 9 | 0 |
| 1978 | 7 | 0 |
| 1979 | 9 | 0 |
| 1980 | 5 | 0 |
| 1981 | 12 | 0 |
| 1982 | 9 | 0 |
| 1983 | 4 | 0 |
| 1984 | 20 | 0 |
| 1985 | 14 | 0 |
| 1986 | 11 | 0 |
| 1987 | 23 | 0 |
| 1988 | 12 | 0 |
| 1989 | 16 | 0 |
| 1990 | 11 | 0 |
| 1991 | 8 | 0 |
| 1992 | 10 | 0 |
| 1993 | 14 | 0 |
| 1994 | 21 | 0 |
| 1995 | 20 | 0 |
| 1996 | 20 | 0 |
| 1997 | 23 | 0 |
| 1998 | 17 | 0 |
| 1999 | 30 | 0 |
| 2000 | 28 | 0 |
| 2001 | 39 | 8 |
| 2002 | 24 | 20 |
| 2003 | 26 | 19 |
| 2004 | 16 | 36 |
| 2005 | 17 | 20 |
| 2006 | 18 | 30 |
| 2007 | 22 | 30 |
| 2008 | 18 | 41 |
| 2009 | 17 | 47 |
| 2010 | 13 | 67 |
| 2011 | 13 | 62 |
| 2012 | 17 | 48 |
| 2013 | 25 | 67 |
| 2014 | 33 | 52 |
| 2015 | 32 | 57 |
| 2016 | 39 | 57 |
| 2017 | 51 | 99 |
| 2018 | 60 | 89 |
| 2019 | 62 | 78 |
| 2020 | 68 | 72 |
| 2021 | 48 | 65 |
| 2022 | 43 | 47 |
| 2023 | 42 | 55 |
| 2024 | 40 | 56 |
| 2025 | 38 | 49 |
| 2026 | 30 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F25J 2240/02Expansion of a process fluid in a work-extracting turbineIndexing code642
- F25J 2240/40Expansion without extracting work, i.e. isenthalpic throttlingIndexing code356
- F25J 2240/80Hot exhaust gas turbine combustion engineIndexing code160
- F25J 2240/70Steam turbineIndexing code130
- F25J 2240/30Dynamic liquid or hydraulic expansion with extraction of workIndexing code103
- F25J 2240/90Hot gas waste turbine of an indirect heated gas for power generationIndexing code86
- F25J 2240/60Expansion by ejector or injectorIndexing code66
Recent patents
- Method for generating refrigeration for a carbon monoxide cold box15 Sep 2026US 12,736,281 B2Praxair Technology, Inc.
- Method and a relative apparatus for producing liquified gases8 Sep 2026US 12,729,906 B2Fpt Industrial S.P.A.
- 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
- Power generation process utilizing fuel, liquid air and/or oxygen with zero CO2 emissions25 Aug 2026US 12,716,650 B2Saipem S.P.A.
- 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
- Cryogenic process for helium recovery from low helium-containing gas stream24 Sep 2026US 2026/0287252 A1Council of Scientific and Industrial Research
- Turbomachine27 Aug 2026US 2026/0251078 A1Kawasaki Jukogyo Kabushiki Kaisha
- 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
Most cited
By later US patents
- Solid-fueled power generation system with carbon dioxide sequestration and method therefor203US 6,148,602 ANorther Research & Engineering Corporation · 2000
- Closed cycle gas turbine for gaseous production199US 4,434,613 AGeneral Electric Company · 1984
- Method and apparatus for cooling high temperature components in a gas turbine167US 6,487,863 B1Siemens Westinghouse Power Corporation · 2002
- Use of nitrogen from an air separation unit as gas turbine air compressor feed refrigerant to improve power output141US 5,388,395 AAir Products and Chemicals, Inc. · 1995
- Process for liquefaction of natural gas137US 6,023,942 AExxon Production Research Company · 2000