F25J 3/04478
For controlling purposes
Official title: {for controlling purposes, e.g. start-up or back-up procedures (F25J3/04496 takes precedence)}
F25J3/04478 (For controlling purposes) appears on 35 US grants and 26 published applications in this corpus.
Search patents in F25J- Granted patents
- 35
- Published applications
- 26
- Assignees
- 11
- Inventors
- 78
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 4 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 1 |
| 2018 | 2 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 3 |
| 2021 | 1 | 3 |
| 2022 | 2 | 4 |
| 2023 | 0 | 0 |
| 2024 | 3 | 1 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Apparatus and process for liquefying gases9 Dec 2025US 12,492,864 B1
- Method for operating a heat exchanger, arrangement with a heat exchanger, and system with a corresponding arrangement4 Mar 2025US 12,241,692 B2Linde Aktiengesellschaft
- Method for obtaining one or more air products and air separation system3 Dec 2024US 12,158,303 B2Linde Aktiengesellschaft
- System and method for supplying backup production in air separation device26 Nov 2024US 12,152,834 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Air separation device and air separation method22 Oct 2024US 12,123,647 B2Taiyo Nippon Sanso Corporation
- Nitrogen generating device and nitrogen generating method20 Feb 2025US 2025/0060158 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method for regulating a device for separating air by cryogenic distillation11 Jan 2024US 2024/0011706 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method for operating a heat exchanger, arrangement with a heat exchanger, and system with a corresponding arrangement6 Oct 2022US 2022/0316811 A1Linde Aktiengesellschaft
- Air separation device and air separation method11 Aug 2022US 2022/0252344 A1Taiyo Nippon Sanso Corporation
- 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
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
- Purification of fluids by adsorption28US 5,601,634 AThe BOC Group, Inc. · 1997
- Process and system for controlling a cryogenic air separation unit during rapid changes in production23US 5,224,336 AAir Products and Chemicals, Inc. · 1993
- Nitrogen purity control in the air separation unit of an IGCC power generation system23US 6,006,546 AAir Products and Chemicals, Inc. · 1999
- Process for restarting an auxilliary column for argon/oxygen separation by distillation and corresponding installation16US 5,505,051 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1996