F25J 1/00
Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
Official title: Processes or apparatus for liquefying or solidifying gases or gaseous mixtures {(recovering volatile solvents by condensation B01D5/00; vapor recovery systems combined with filling nozzles B67D7/54; solidification of carbonic acid C01B32/55; for ammonia in general C01C1/00)}
F25J1/00 (Processes or apparatus for liquefying or solidifying gases or gaseous mixtures) appears on 1,503 US grants and 1,929 published applications in this corpus.
Search patents in F25J- Granted patents
- 1,503
- Published applications
- 1,929
- Assignees
- 615
- Inventors
- 2,910
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 15 | 0 |
| 1978 | 7 | 0 |
| 1979 | 11 | 0 |
| 1980 | 15 | 0 |
| 1981 | 9 | 0 |
| 1982 | 9 | 0 |
| 1983 | 7 | 0 |
| 1984 | 11 | 0 |
| 1985 | 11 | 0 |
| 1986 | 12 | 0 |
| 1987 | 16 | 0 |
| 1988 | 11 | 0 |
| 1989 | 12 | 0 |
| 1990 | 9 | 0 |
| 1991 | 6 | 0 |
| 1992 | 12 | 0 |
| 1993 | 10 | 0 |
| 1994 | 10 | 0 |
| 1995 | 9 | 0 |
| 1996 | 14 | 0 |
| 1997 | 21 | 0 |
| 1998 | 20 | 0 |
| 1999 | 14 | 0 |
| 2000 | 30 | 0 |
| 2001 | 32 | 5 |
| 2002 | 32 | 5 |
| 2003 | 27 | 20 |
| 2004 | 21 | 27 |
| 2005 | 14 | 29 |
| 2006 | 21 | 40 |
| 2007 | 25 | 31 |
| 2008 | 14 | 41 |
| 2009 | 30 | 71 |
| 2010 | 10 | 80 |
| 2011 | 14 | 58 |
| 2012 | 18 | 57 |
| 2013 | 24 | 82 |
| 2014 | 37 | 87 |
| 2015 | 27 | 124 |
| 2016 | 40 | 89 |
| 2017 | 86 | 107 |
| 2018 | 71 | 125 |
| 2019 | 82 | 122 |
| 2020 | 104 | 100 |
| 2021 | 60 | 108 |
| 2022 | 91 | 119 |
| 2023 | 78 | 119 |
| 2024 | 97 | 121 |
| 2025 | 67 | 80 |
| 2026 | 68 | 82 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F25J 1/0002Processes or apparatus for liquefying or solidifying gases or gaseous mixtures: characterised1,363
- F25J 1/02Requiring the use of refrigeration1,329
- F25J 1/003Processes or apparatus for liquefying or solidifying gases or gaseous mixtures: characterised980
- F25J 1/006Processes or apparatus for liquefying or solidifying gases or gaseous mixtures: characterised460
Recent patents
- Hydrogen liquefaction system and hydrogen liquefaction method29 Sep 2026US 12,747,911 B2H2CREO Corp.
- System for transforming a product22 Sep 2026US 12,742,521 B2Eifhytec
- 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
- A hazardous fluid isolation system8 Oct 2026US 2026/0309284 A1Fabrum IP Holdings Limited
- Fluid cooling plant and refrigerant module thereof8 Oct 2026US 2026/0309376 A1Nuovo Pignone Tecnologie Srl
- Methods and systems for efficient pressurized liquefied natural gas (plng) production, delivery, and use across mobile and stationary applications8 Oct 2026US 2026/0309409 A1Cryosys, LLC
- Method for supplying gaseous nitrogen and liquefying nitrogen8 Oct 2026US 2026/0309410 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Cycle gas refrigerator and liquefaction facility1 Oct 2026US 2026/0298529 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
Most cited
By later US patents
- Power plant with carbon dioxide capture and zero pollutant emissions254US 5,724,805 AUniversity of Massachusetts Lowell · 1998
- 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