F25J 1/0227
Within a refrigeration cascade
Official title: {within a refrigeration cascade}
F25J1/0227 (Within a refrigeration cascade) appears on 42 US grants and 57 published applications in this corpus.
Search patents in F25J- Granted patents
- 42
- Published applications
- 57
- Assignees
- 31
- Inventors
- 113
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 4 |
| 2010 | 1 | 2 |
| 2011 | 4 | 3 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 2 |
| 2015 | 1 | 4 |
| 2016 | 0 | 4 |
| 2017 | 2 | 6 |
| 2018 | 1 | 6 |
| 2019 | 7 | 6 |
| 2020 | 5 | 1 |
| 2021 | 1 | 3 |
| 2022 | 2 | 5 |
| 2023 | 2 | 0 |
| 2024 | 2 | 2 |
| 2025 | 3 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydrogen or helium throttling liquefaction system using direct current flow from the cold and hot ends of the regenerative cryocoolers23 Dec 2025US 12,504,225 B2Zhejiang University
- Method and installation for the electrolytic production of liquid hydrogen29 Apr 2025US 12,286,712 B2Linde Aktiengesellschaft
- Integrated refueling station29 Apr 2025US 12,288,904 B2Battelle Memorial Institute
- Magnetic refrigeration systems for cryogenic applications10 Dec 2024US 12,163,701 B2General Engineering & Research, L.L.C.
- Installation and method for purifying and liquefying natural gas22 Oct 2024US 12,123,645 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Fluid cooling plant and refrigerant module thereof8 Oct 2026US 2026/0309376 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
- Method for liquefying a methane-rich feed gas, and corresponding facility19 Jun 2025US 2025/0198695 A1Engie
- Method for liquefying a methane-rich gas to be processed, and corresponding facility30 Jan 2025US 2025/0035375 A1Engie
- Apparatus and process for absorption chiller utilization for environmentally friendly hydrogen production22 Aug 2024US 2024/0279825 A1Air Products and Chemicals, Inc.
Most cited
By later US patents
- Active magnetic regenerator method and apparatus96US 5,249,424 AAstronautics Corporation of America · 1993
- Magnetic refrigeration apparatus with belt of ferro or paramagnetic material33US 4,704,871 AThe United States of America as represented by the United States Department of Energy · 1987
- Liquefaction process28US 5,768,912 A1998
- System and method for liquid air production, power storage and power release22US 7,821,158 B2Expansion Energy, LLC · 2010
- Magnetic refrigeration system with multicomponent refrigerant fluid forecooling19US 6,293,106 B1Praxair Technology, Inc. · 2001