F25J 3/04472
Using the cold from cryogenic liquids produced within the air fractionation unit
Official title: {using the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages}
F25J3/04472 (Using the cold from cryogenic liquids produced within the air fractionation unit) appears on 85 US grants and 77 published applications in this corpus.
Search patents in F25J- Granted patents
- 85
- Published applications
- 77
- Assignees
- 32
- Inventors
- 175
- Latest grant
- 16 Dec 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 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 3 | 6 |
| 2008 | 1 | 2 |
| 2009 | 0 | 4 |
| 2010 | 0 | 3 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 3 | 6 |
| 2015 | 1 | 3 |
| 2016 | 2 | 5 |
| 2017 | 4 | 4 |
| 2018 | 3 | 1 |
| 2019 | 2 | 0 |
| 2020 | 1 | 5 |
| 2021 | 1 | 7 |
| 2022 | 3 | 9 |
| 2023 | 5 | 5 |
| 2024 | 4 | 2 |
| 2025 | 6 | 4 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Device and method for producing hydrogen and byproduct oxygen by using green electricity electrolyzed water16 Dec 2025US 12,497,705 B2Hangzhou Oxygen Plant Group Co., Ltd.
- Apparatus and process for liquefying gases9 Dec 2025US 12,492,864 B1
- Method and plant for the production of ammonia with renewable energy22 Jul 2025US 12,365,595 B2Stamicarbon B. V.
- Method to convert excess liquid oxygen into liquid nitrogen20 May 2025US 12,305,916 B2Airgas, Inc.
- Integrated nitrogen liquefier for a nitrogen and argon producing cryogenic air separation unit11 Mar 2025US 12,247,783 B2Linde Aktiengesellschaft
- Air separation device20 Aug 2026US 2026/0243509 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Process and apparatus for intermittent liquefaction operation that can support continuous air separation processing6 Aug 2026US 2026/0227123 A1Air Products and Chemicals, Inc.
- Compressed carbon dioxide energy storage system and method combined with air separation technology25 Jun 2026US 2026/0176984 A1Xi' An Jiaotong University
- Process and plant for providing a nitrogen product, an oxygen product and a hydrogen product28 Aug 2025US 2025/0271208 A1Linde 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
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
- High pressure combustion turbine and air separation system integration41US 5,666,823 AAir Products and Chemicals, Inc. · 1997
- 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