F25J 1/006
Processes or apparatus for liquefying or solidifying gases or gaseous mixtures: characterised
Official title: {characterised by the refrigerant fluid used (refrigerants in vapor compression cycles F25B9/002, refrigerant materials per se C09K5/00)}
F25J1/006 (Processes or apparatus for liquefying or solidifying gases or gaseous mixtures: characterised) appears on 460 US grants and 686 published applications in this corpus.
Search patents in F25J- Granted patents
- 460
- Published applications
- 686
- Assignees
- 216
- Inventors
- 1,104
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 9 | 0 |
| 2001 | 10 | 3 |
| 2002 | 13 | 0 |
| 2003 | 7 | 5 |
| 2004 | 7 | 6 |
| 2005 | 4 | 7 |
| 2006 | 4 | 10 |
| 2007 | 5 | 11 |
| 2008 | 3 | 15 |
| 2009 | 9 | 25 |
| 2010 | 3 | 32 |
| 2011 | 8 | 17 |
| 2012 | 5 | 11 |
| 2013 | 7 | 15 |
| 2014 | 10 | 26 |
| 2015 | 7 | 27 |
| 2016 | 10 | 27 |
| 2017 | 27 | 36 |
| 2018 | 13 | 51 |
| 2019 | 25 | 53 |
| 2020 | 30 | 38 |
| 2021 | 19 | 37 |
| 2022 | 42 | 59 |
| 2023 | 30 | 56 |
| 2024 | 37 | 58 |
| 2025 | 26 | 36 |
| 2026 | 23 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydrogen liquefaction system and hydrogen liquefaction method29 Sep 2026US 12,747,911 B2H2CREO Corp.
- Liquefied hydrogen production device22 Sep 2026US 12,742,590 B2Jgc Corporation
- Hydrogen liquefaction system and hydrogen liquefaction method15 Sep 2026US 12,736,279 B2H2CREO Corp.
- System and method for co-production of a densified liquid oxygen product and densified liquid methane product15 Sep 2026US 12,736,280 B2Praxair Technology, Inc.
- Refrigeration-integrated hydrocarbon collection system and method of operation25 Aug 2026US 12,716,649 B2Oxy Low Carbon Ventures, LLC
- Cryogenic cooling system3 Sep 2026US 2026/0257609 A1
- Assembly for storing a liquefied cryogenic fluid, vehicle and method27 Aug 2026US 2026/0251269 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Fluid liquefaction method and device27 Aug 2026US 2026/0251384 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Cascade refrigeration natural gas liquefaction system and process27 Aug 2026US 2026/0251385 A1Hangzhou Zhongtai Cryogenic Technology Corporation
- Cryogenic type boil-off gas reliquefaction system20 Aug 2026US 2026/0243505 A1Shanghai Marine Diesel Engine Research Institute
Most cited
By later US patents
- LNG production using dual independent expander refrigeration cycles149US 6,412,302 B1ABB Lummus Global, Inc. - Randall Division · 2002
- Process for liquefaction of natural gas137US 6,023,942 AExxon Production Research Company · 2000
- Process and system for liquefying natural gas124US 6,324,867 B1ExxonMobil Oil Corporation · 2001
- Process for removing carbon dioxide from combustion exhaust gas122US 5,344,627 AMitsubishi Jukogyo Kabushiki Kaisha · 1994
- Enhanced NGL recovery utilizing refrigeration and reflux from LNG plants112US 6,401,486 B12002