F25J 3/0449
For rapid load change of the air fractionation unit
Official title: {for rapid load change of the air fractionation unit}
F25J3/0449 (For rapid load change of the air fractionation unit) appears on 12 US grants and 9 published applications in this corpus.
Search patents in F25J- Granted patents
- 12
- Published applications
- 9
- Assignees
- 3
- Inventors
- 32
- Latest grant
- 3 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for obtaining one or more air products and air separation system3 Dec 2024US 12,158,303 B2Linde Aktiengesellschaft
- Process and plant for the production of argon by cryogenic distillation of air13 Sep 2022US 11,441,840 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method and device for separating a gas mixture by cryogenic distillation17 Jan 2017US 9,546,815 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Process and apparatus for the separation of air by cryogenic distillation26 Jul 2016US 9,400,135 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method and device for separating a gas mixture by cryogenic distillation6 May 2014US 8,713,964 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- 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 obtaining one or more air products and air separation system27 Jan 2022US 2022/0026145 A1Linde Aktiengesellschaft
- Process and plant for the production of argon by cryogenic distillation of air6 Feb 2020US 2020/0041204 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method And Device For Separating A Gas Mixture By Cryogenic Distillation24 Jul 2014US 2014/0202208 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
Most cited
By later US patents
- 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 and installation for the separation of air11US 5,666,825 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1997
- Process and installation for the separation of air10US 5,437,160 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1995
- Process and installation for the separation of air4US 5,592,834 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1997