F25J 3/04357
And comprising a gas work expansion loop
Official title: {and comprising a gas work expansion loop}
F25J3/04357 (And comprising a gas work expansion loop) appears on 69 US grants and 41 published applications in this corpus.
Search patents in F25J- Granted patents
- 69
- Published applications
- 41
- Assignees
- 20
- Inventors
- 110
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 3 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 0 | 3 |
| 2016 | 0 | 0 |
| 2017 | 2 | 3 |
| 2018 | 0 | 3 |
| 2019 | 1 | 0 |
| 2020 | 1 | 2 |
| 2021 | 2 | 5 |
| 2022 | 1 | 2 |
| 2023 | 3 | 5 |
| 2024 | 3 | 3 |
| 2025 | 2 | 2 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for storing and producing energy to stabilize the power network26 May 2026US 12,638,234 B2Saipem S.P.A.
- Oxygen liquefier design phasing26 May 2026US 12,638,235 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Apparatus and process for liquefying gases9 Dec 2025US 12,492,864 B1
- Integrated nitrogen liquefier for a nitrogen and argon producing cryogenic air separation unit11 Mar 2025US 12,247,783 B2Linde Aktiengesellschaft
- Process and apparatus for the separation of air by cryogenic distillation3 Sep 2024US 12,078,415 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Process and apparatus for producing argon by cryogenic air separation23 Jul 2026US 2026/0210624 A1
- Air separation unit21 Aug 2025US 2025/0264274 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Air separation system and air separation method2 Jan 2025US 2025/0003679 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Liquefactor and method for liquefying a gas19 Sep 2024US 2024/0310114 A1L' Air Liquide, Societe Anonyme pour I' Etude et I'Exploitation des Procedes Georges Claude
- Method and plant for producing ammonia1 Aug 2024US 2024/0255220 A1Linde Aktiengesellschaft
Most cited
By later US patents
- Natural gas letdown liquefaction system48US 6,131,407 A2000
- Chemical process optimization method46US 5,315,521 APraxair Technology, Inc. · 1994
- Process and apparatus for the separation of air27US 4,464,188 AAir Products and Chemicals, Inc. · 1984
- Cryogenic rectification system for producing high pressure gaseous oxygen and liquid product27US 5,655,388 APraxair Technology, Inc. · 1997
- Multiple reboiler, double column, elevated pressure air separation cycles and their integration with gas turbines23US 5,257,504 AAir Products and Chemicals, Inc. · 1993