F25J 1/003
Processes or apparatus for liquefying or solidifying gases or gaseous mixtures: characterised
Official title: {characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production}
F25J1/003 (Processes or apparatus for liquefying or solidifying gases or gaseous mixtures: characterised) appears on 980 US grants and 1,256 published applications in this corpus.
Search patents in F25J- Granted patents
- 980
- Published applications
- 1,256
- Assignees
- 357
- Inventors
- 1,808
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 13 | 0 |
| 1978 | 4 | 0 |
| 1979 | 8 | 0 |
| 1980 | 12 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 8 | 0 |
| 1985 | 10 | 0 |
| 1986 | 7 | 0 |
| 1987 | 12 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 8 | 0 |
| 1993 | 6 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 11 | 0 |
| 1997 | 16 | 0 |
| 1998 | 15 | 0 |
| 1999 | 13 | 0 |
| 2000 | 27 | 0 |
| 2001 | 23 | 4 |
| 2002 | 23 | 2 |
| 2003 | 24 | 16 |
| 2004 | 17 | 19 |
| 2005 | 12 | 21 |
| 2006 | 12 | 20 |
| 2007 | 16 | 24 |
| 2008 | 10 | 33 |
| 2009 | 20 | 49 |
| 2010 | 5 | 65 |
| 2011 | 9 | 41 |
| 2012 | 9 | 33 |
| 2013 | 19 | 40 |
| 2014 | 20 | 44 |
| 2015 | 11 | 50 |
| 2016 | 20 | 62 |
| 2017 | 43 | 71 |
| 2018 | 37 | 97 |
| 2019 | 51 | 91 |
| 2020 | 73 | 69 |
| 2021 | 41 | 64 |
| 2022 | 64 | 79 |
| 2023 | 54 | 78 |
| 2024 | 60 | 85 |
| 2025 | 46 | 56 |
| 2026 | 38 | 43 |
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.
- Single mixed refrigerant LNG production process22 Sep 2026US 12,742,588 B2Honeywell Lng LLC
- Closed loop LNG process for a feed gas with nitrogen22 Sep 2026US 12,742,589 B2ConocoPhillips Company
- Liquefied hydrogen production device22 Sep 2026US 12,742,590 B2Jgc Corporation
- 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.
- Method for liquefying a gas1 Oct 2026US 2026/0298530 A1
- Process and apparatus for air separation by cryogenic distillation1 Oct 2026US 2026/0298532 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Carbon dioxide reliquefaction system and carbon dioxide reliquefaction method which use closed cycle17 Sep 2026US 2026/0276299 A1Hanwha Ocean Co., Ltd.
- Cryogenic cooling system3 Sep 2026US 2026/0257609 A1
- Turbomachine27 Aug 2026US 2026/0251078 A1Kawasaki Jukogyo Kabushiki Kaisha
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
- Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator136US 5,979,440 ASeQual Technologies, Inc. · 1999
- Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator133US 6,698,423 B1SeQual Technologies, Inc. · 2004
- Process and system for liquefying natural gas124US 6,324,867 B1ExxonMobil Oil Corporation · 2001