F25J 3/04503
By exchanging "cold" between at least two different cryogenic liquids
Official title: {by exchanging "cold" between at least two different cryogenic liquids, e.g. independently from the main heat exchange line of the air fractionation and/or by using external alternating storage systems}
F25J3/04503 (By exchanging "cold" between at least two different cryogenic liquids) appears on 28 US grants and 16 published applications in this corpus.
Search patents in F25J- Granted patents
- 28
- Published applications
- 16
- Assignees
- 14
- Inventors
- 53
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 2 |
| 2015 | 1 | 2 |
| 2016 | 2 | 0 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 3 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method to convert excess liquid oxygen into liquid nitrogen20 May 2025US 12,305,916 B2Airgas, Inc.
- Method and apparatus for air separation by cryogenic distillation2 Jul 2024US 12,025,372 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Control system and method for power plant29 May 2018US 9,985,557 B2Doosan Babcock Limited
- Method and device for generating electrical energy7 Nov 2017US 9,810,103 B2Linde Aktiengesellschaft
- Method and device for generating electrical energy4 Oct 2016US 9,458,762 B2Linde Aktiengesellschaft
- Method and device for separating air by cryogenic distillation27 Feb 2025US 2025/0067507 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method to convert excess liquid oxygen into liquid nitrogen14 Apr 2022US 2022/0112083 A1Airgas, Inc.
- Apparatus to convert excess liquid oxygen into liquid nitrogen14 Apr 2022US 2022/0113085 A1Airgas, Inc.
- Process and apparatus for supplying a backup gas under pressure3 Mar 2022US 2022/0065528 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method and apparatus for air separation by cryogenic distillation30 Apr 2020US 2020/0132367 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
Most cited
By later US patents
- Integrated apparatus for generating power and/or oxygen enriched fluid, process for the operation thereof82US 6,276,171 B1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 2001
- Low temperature air fractionation accommodating variable oxygen demand44US 5,084,081 ALinde Aktiengesellschaft · 1992
- Plant for producing gaseous nitrogen28US 4,526,595 AAir Products and Chemicals, Inc. · 1985
- Cryogenic air separation system for producing gaseous oxygen28US 5,265,429 APraxair Technology, Inc. · 1993
- Plant for producing gaseous oxygen22US 4,529,425 AAir Products and Chemicals, Inc. · 1985