F25J 1/0202
In a quasi-closed internal refrigeration loop
Official title: {in a quasi-closed internal refrigeration loop (F25J1/0208, F25J1/0219, F25J1/0224 take precedence)}
F25J1/0202 (In a quasi-closed internal refrigeration loop) appears on 148 US grants and 203 published applications in this corpus.
Search patents in F25J- Granted patents
- 148
- Published applications
- 203
- Assignees
- 88
- Inventors
- 358
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 4 | 0 |
| 2003 | 2 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 5 |
| 2007 | 3 | 6 |
| 2008 | 3 | 1 |
| 2009 | 3 | 4 |
| 2010 | 1 | 4 |
| 2011 | 2 | 5 |
| 2012 | 0 | 2 |
| 2013 | 1 | 5 |
| 2014 | 1 | 10 |
| 2015 | 2 | 15 |
| 2016 | 2 | 13 |
| 2017 | 5 | 14 |
| 2018 | 8 | 26 |
| 2019 | 6 | 16 |
| 2020 | 20 | 12 |
| 2021 | 10 | 13 |
| 2022 | 5 | 7 |
| 2023 | 7 | 7 |
| 2024 | 8 | 21 |
| 2025 | 8 | 10 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and processes for stationary and mobile natural gas liquefaction26 May 2026US 12,638,237 B2NuBlu Innovations, LLC
- Method and apparatus for liquefying a gas rich in carbon dioxide26 May 2026US 12,638,238 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.
- 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
- Method for liquefying a stream rich in CO23 Feb 2026US 12,540,771 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method for liquefying a stream rich in co216 Jul 2026US 2026/0202124 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- 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.
- Semi-open loop liquefaction process19 Feb 2026US 2026/0049762 A1Honeywell Lng LLC
- Facility and method for the liquefaction of hydrogen5 Feb 2026US 2026/0036361 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- High-grade heat-of-compression storage system, and methods of use11 Dec 2025US 2025/0376974 A1Highview Enterprises Limited
Most cited
By later US patents
- Process for liquefaction of natural gas137US 6,023,942 AExxon Production Research Company · 2000
- Process for liquefying a natural gas stream containing at least one freezable component123US 5,956,971 AExxon Production Research Company · 1999
- Process for making pressurized liquefied natural gas from pressured natural gas using expansion cooling56US 6,378,330 B1ExxonMobil Upstream Research Company · 2002
- Method and apparatus of obtaining natural gas from a maritime deposit55US 5,025,860 ASulzer Brothers Limited · 1991
- Self-refrigerated LNG process51US 6,564,578 B1BP Corporation North America Inc. · 2003