F25J 2270/12
External refrigeration with liquid vaporising loop
F25J2270/12 (External refrigeration with liquid vaporising loop) appears on 443 US grants and 467 published applications in this corpus.
Search patents in F25J- Granted patents
- 443
- Published applications
- 467
- Assignees
- 162
- Inventors
- 839
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 7 | 0 |
| 1980 | 7 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 7 | 0 |
| 1985 | 7 | 0 |
| 1986 | 6 | 0 |
| 1987 | 8 | 0 |
| 1988 | 8 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 3 | 0 |
| 1999 | 11 | 0 |
| 2000 | 14 | 0 |
| 2001 | 10 | 2 |
| 2002 | 9 | 5 |
| 2003 | 7 | 4 |
| 2004 | 7 | 11 |
| 2005 | 6 | 17 |
| 2006 | 8 | 11 |
| 2007 | 11 | 11 |
| 2008 | 2 | 10 |
| 2009 | 5 | 19 |
| 2010 | 6 | 30 |
| 2011 | 2 | 27 |
| 2012 | 8 | 24 |
| 2013 | 9 | 19 |
| 2014 | 11 | 11 |
| 2015 | 12 | 17 |
| 2016 | 16 | 21 |
| 2017 | 18 | 17 |
| 2018 | 19 | 19 |
| 2019 | 22 | 44 |
| 2020 | 19 | 23 |
| 2021 | 23 | 30 |
| 2022 | 18 | 25 |
| 2023 | 21 | 25 |
| 2024 | 18 | 20 |
| 2025 | 11 | 11 |
| 2026 | 11 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydrogen liquefaction system and hydrogen liquefaction method29 Sep 2026US 12,747,911 B2H2CREO Corp.
- Process for separating hydrogen from an olefin hydrocarbon effluent vapor stream2 Jun 2026US 12,643,067 B2Enflex, Inc.
- Dehydrogenation and pyrolysis product recovery with a common refrigerant2 Jun 2026US 12,643,843 B2Uop LLC
- Standalone high-pressure heavies removal unit for LNG processing26 May 2026US 12,638,236 B2ConocoPhillips Company
- System and method for separating methane and nitrogen with reduced horsepower demands19 May 2026US 12,631,393 B2BCCK Holding Company
- Method for liquefying carbon dioxide1 Oct 2026US 2026/0298531 A1
- Method and plant for separation of carbon dioxide (co2)27 Aug 2026US 2026/0251390 A1Aker Carbon Capture Norway AS
- Carbon dioxide separation plant using external refrigeration circuit, and method13 Aug 2026US 2026/0235355 A1Nuovo Pignone Tecnologie Srl
- Method and apparatus for liquefying and/or separating a mixture containing co230 Jul 2026US 2026/0217528 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Process and apparatus for removing co2 from a gasification syngas16 Jul 2026US 2026/0200728 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
Most cited
By later US patents
- Hydrocarbon gas processing136US 4,140,504 AThe Ortloff Corporation · 1979
- Hydrocarbon gas processing115US 4,854,955 AElcor Corporation · 1989
- Separating hydrocarbon gases114US 4,617,039 APro-Quip Corporation · 1986
- Enhanced NGL recovery utilizing refrigeration and reflux from LNG plants112US 6,401,486 B12002
- Distillative processing of CO.sub.2 and hydrocarbons for enhanced oil recovery109US 4,753,666 AChevron Research Company · 1988