F25J 1/0208
In combination with an internal quasi-closed refrigeration loop
Official title: {in combination with an internal quasi-closed refrigeration loop, e.g. with deep flash recycle loop (F25J1/021 takes precedence)}
F25J1/0208 (In combination with an internal quasi-closed refrigeration loop) appears on 174 US grants and 230 published applications in this corpus.
Search patents in F25J- Granted patents
- 174
- Published applications
- 230
- Assignees
- 99
- Inventors
- 443
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 4 | 1 |
| 2002 | 3 | 0 |
| 2003 | 4 | 3 |
| 2004 | 6 | 3 |
| 2005 | 3 | 8 |
| 2006 | 1 | 6 |
| 2007 | 6 | 9 |
| 2008 | 3 | 13 |
| 2009 | 5 | 12 |
| 2010 | 0 | 8 |
| 2011 | 3 | 7 |
| 2012 | 3 | 7 |
| 2013 | 4 | 7 |
| 2014 | 2 | 8 |
| 2015 | 1 | 11 |
| 2016 | 6 | 9 |
| 2017 | 13 | 16 |
| 2018 | 7 | 13 |
| 2019 | 7 | 10 |
| 2020 | 9 | 8 |
| 2021 | 6 | 6 |
| 2022 | 6 | 16 |
| 2023 | 9 | 18 |
| 2024 | 10 | 12 |
| 2025 | 2 | 10 |
| 2026 | 6 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process and apparatus for liquefaction of CO211 Aug 2026US 12,704,322 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Cryogenic gas cooling system and method16 Jun 2026US 12,656,057 B2Chart Energy & Chemicals, Inc.
- Hydrogen liquefaction with stored hydrogen refrigeration source9 Jun 2026US 12,650,259 B2Chart Energy & Chemicals, Inc.
- Method for cooling a heat exchanger of a gas supply system for a gas-consuming apparatus of a ship31 Mar 2026US 12,590,757 B2Gaztransport Et Technigaz
- Liquified natural gas processing cold box with internal refrigerant storage3 Feb 2026US 12,540,773 B2
- Nitrogen management in an lng plant6 Aug 2026US 2026/0227121 A1ConocoPhillips Company
- System for treating boil-off gas25 Jun 2026US 2026/0177313 A1Institute for Advanced Engineering
- Liquified natural gas processing cold box with internal refrigerant storage30 Apr 2026US 2026/0118052 A1
- Method of Hydrogen Liquefaction Using Optimized Claude Refrigeration Cycles2 Apr 2026US 2026/0092734 A1Evergreen Cryogenics Inc.
- Apparatus and process for hydrogen recycling to avoid liquefier shutdown due to insufficient feed of hydrogen19 Feb 2026US 2026/0049761 A1Air Products and Chemicals, Inc.
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
- LNG production in cryogenic natural gas processing plants108US 5,615,561 AWilliams Field Services Company · 1997
- Integrated processing of natural gas into liquid products87US 6,743,829 B2BP Corporation North America Inc. · 2004
- Integrated processing of natural gas into liquid products84US 7,168,265 B2BP Corporation North America Inc. · 2007