F25J 2270/06
With multiple gas expansion loops
Official title: with multiple gas expansion loops
F25J2270/06 (With multiple gas expansion loops) appears on 150 US grants and 186 published applications in this corpus.
Search patents in F25J- Granted patents
- 150
- Published applications
- 186
- Assignees
- 66
- Inventors
- 345
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 1 |
| 2003 | 3 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 7 |
| 2009 | 3 | 3 |
| 2010 | 1 | 5 |
| 2011 | 3 | 11 |
| 2012 | 2 | 13 |
| 2013 | 2 | 8 |
| 2014 | 5 | 6 |
| 2015 | 3 | 11 |
| 2016 | 6 | 8 |
| 2017 | 6 | 9 |
| 2018 | 6 | 19 |
| 2019 | 5 | 4 |
| 2020 | 14 | 13 |
| 2021 | 6 | 13 |
| 2022 | 6 | 6 |
| 2023 | 9 | 15 |
| 2024 | 6 | 14 |
| 2025 | 7 | 8 |
| 2026 | 7 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydrogen liquefaction with stored hydrogen refrigeration source9 Jun 2026US 12,650,259 B2Chart Energy & Chemicals, Inc.
- Process for separating hydrogen from an olefin hydrocarbon effluent vapor stream2 Jun 2026US 12,643,067 B2Enflex, Inc.
- Process and apparatus for separating a mixture of hydrogen and carbon dioxide19 May 2026US 12,629,630 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.
- Plant and method for producing hydrogen at cryogenic temperature10 Mar 2026US 12,571,584 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- System and method for the production and supply of a densified liquid oxygen product20 Aug 2026US 2026/0243506 A1
- Method of Hydrogen Liquefaction Using Optimized Claude Refrigeration Cycles2 Apr 2026US 2026/0092734 A1Evergreen Cryogenics Inc.
- System and method for simultaneously producing high-purity liquid nitrogen and high-purity liquid carbon dioxide at low cost by using flue gas26 Feb 2026US 2026/0055956 A1Hangzhou Oxygen Plant Group Co., Ltd.
- Simultaneous carbon dioxide and hydrogen recovery from the tail gas stream of a sulfur recovery unit19 Feb 2026US 2026/0048362 A1Saudi Arabian Oil Company
- Semi-open loop liquefaction process19 Feb 2026US 2026/0049762 A1Honeywell Lng LLC
Most cited
By later US patents
- Method for the recovery of low purity carbon dioxide104US 4,977,745 A1990
- Process for making pressurized liquefied natural gas from pressured natural gas using expansion cooling56US 6,378,330 B1ExxonMobil Upstream Research Company · 2002
- Fractionation process for gaseous hydrocarbon mixtures with a high acid gas content49US 4,976,849 ASNAMPROGETTI S.p. A. · 1990
- Method and apparatus for liquefaction of a natural gas47US 5,651,269 AInstitut Francais du Petrole · 1997
- Oxidative coupling of methane implementations for olefin production42US 9,352,295 B2Siluria Technologies, Inc. · 2016