F25J 2270/08
Internal refrigeration by flash gas recovery loop
F25J2270/08 (Internal refrigeration by flash gas recovery loop) appears on 59 US grants and 70 published applications in this corpus.
Search patents in F25J- Granted patents
- 59
- Published applications
- 70
- Assignees
- 44
- Inventors
- 168
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 6 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 2 |
| 2007 | 1 | 4 |
| 2008 | 1 | 1 |
| 2009 | 2 | 2 |
| 2010 | 2 | 3 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 2 | 3 |
| 2016 | 1 | 2 |
| 2017 | 1 | 13 |
| 2018 | 1 | 4 |
| 2019 | 1 | 4 |
| 2020 | 1 | 3 |
| 2021 | 5 | 5 |
| 2022 | 2 | 2 |
| 2023 | 5 | 2 |
| 2024 | 2 | 4 |
| 2025 | 3 | 3 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device and method for recovering carbon dioxide and nitrogen from flue gas14 Apr 2026US 12,601,540 B2Hangzhou Oxygen Plant Group Co., Ltd.
- Semi-open loop liquefaction process18 Nov 2025US 12,474,114 B2Honeywell Lng LLC
- Phase implementation of natural gas liquid recovery plants3 Jun 2025US 12,320,587 B2Fluor Technologies Corporation
- Fuel gas conditioning units for natural gas systems18 Feb 2025US 12,228,337 B1EOG Resources, Inc.
- Reverse Brayton LNG production process2 Jul 2024US 12,025,370 B2Air Products and Chemicals, Inc.
- Cryogenic process for helium recovery from low helium-containing gas stream24 Sep 2026US 2026/0287252 A1Council of Scientific and Industrial Research
- Nitrogen management in an lng plant6 Aug 2026US 2026/0227121 A1ConocoPhillips Company
- Energy efficient non-flammable refrigeration for co2-rich process streams25 Jun 2026US 2026/0177314 A1Uop LLC
- System and method for simultaneously producing high-purity liquid nitrogen and high-purity liquid carbon dioxide at low cost by using flue gas26 Feb 2026US 2026/0055956 A1Hangzhou Oxygen Plant Group Co., Ltd.
- Semi-open loop liquefaction process19 Feb 2026US 2026/0049762 A1Honeywell Lng LLC
Most cited
By later US patents
- Hydrocarbon gas processing136US 4,140,504 AThe Ortloff Corporation · 1979
- Process for separating a multi-component gas stream containing at least one freezable component78US 6,053,007 AExxonMobil Upstream Research Company · 2000
- Aromatics and/or heavies removal from a methane-based feed by condensation and stripping40US 5,737,940 A1998
- Separation of H.sub.2, CO, and CH.sub.4 synthesis gas with methane wash31US 4,102,659 AUnion Carbide Corporation · 1978
- Liquid products using an air and a nitrogen recycle liquefier30US 4,705,548 AAir Products and Chemicals, Inc. · 1987