F25J 2270/02
Internal refrigeration with liquid vaporising loop
F25J2270/02 (Internal refrigeration with liquid vaporising loop) appears on 408 US grants and 422 published applications in this corpus.
Search patents in F25J- Granted patents
- 408
- Published applications
- 422
- Assignees
- 164
- Inventors
- 684
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 7 | 0 |
| 1986 | 10 | 0 |
| 1987 | 11 | 0 |
| 1988 | 7 | 0 |
| 1989 | 6 | 0 |
| 1990 | 7 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 8 | 0 |
| 1995 | 3 | 0 |
| 1996 | 7 | 0 |
| 1997 | 11 | 0 |
| 1998 | 4 | 0 |
| 1999 | 10 | 0 |
| 2000 | 12 | 0 |
| 2001 | 5 | 3 |
| 2002 | 6 | 8 |
| 2003 | 4 | 1 |
| 2004 | 6 | 8 |
| 2005 | 4 | 9 |
| 2006 | 3 | 5 |
| 2007 | 8 | 16 |
| 2008 | 5 | 16 |
| 2009 | 5 | 14 |
| 2010 | 5 | 21 |
| 2011 | 6 | 31 |
| 2012 | 13 | 25 |
| 2013 | 11 | 24 |
| 2014 | 11 | 18 |
| 2015 | 14 | 19 |
| 2016 | 20 | 25 |
| 2017 | 18 | 26 |
| 2018 | 22 | 31 |
| 2019 | 19 | 14 |
| 2020 | 20 | 15 |
| 2021 | 11 | 19 |
| 2022 | 5 | 15 |
| 2023 | 17 | 15 |
| 2024 | 10 | 22 |
| 2025 | 9 | 9 |
| 2026 | 10 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Method for generating refrigeration for a carbon monoxide cold box15 Sep 2026US 12,736,281 B2Praxair Technology, Inc.
- Method and system for separating a gas mixture25 Aug 2026US 12,714,965 B2Linde Aktiengesellschaft
- Method and plant for low temperature fractionation of air18 Aug 2026US 12,710,228 B2Linde Aktiengesellschaft
- Method and system for efficient hydrogen compression11 Aug 2026US 12,704,116 B2Nuovo Pignone Tecnologie Srl
- Method for cryogenic separation of air, and air separation system10 Sep 2026US 2026/0266539 A1Linde Aktiengesellschaft
- Cryogenic boiler27 Aug 2026US 2026/0251387 A1Blue Origin Manufacturing, LLC
- 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
- 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
- Process and apparatus for producing ultra pure co2 in a carbon capture process2 Jul 2026US 2026/0184577 A1Uop LLC
Most cited
By later US patents
- Hydrocarbon gas processing134US 5,568,737 AElcor Corporation · 1996
- Process for liquefying a natural gas stream containing at least one freezable component123US 5,956,971 AExxon Production Research Company · 1999
- Hydrocarbon gas processing116US 4,157,904 AThe Ortloff Corporation · 1979
- Hydrocarbon gas processing115US 4,854,955 AElcor Corporation · 1989
- Separating hydrocarbon gases114US 4,617,039 APro-Quip Corporation · 1986