F25J 3/04096
Of argon or argon enriched stream
Official title: {of argon or argon enriched stream}
F25J3/04096 (Of argon or argon enriched stream) appears on 25 US grants and 30 published applications in this corpus.
Search patents in F25J- Granted patents
- 25
- Published applications
- 30
- Assignees
- 5
- Inventors
- 39
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 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 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 5 |
| 2018 | 6 | 1 |
| 2019 | 0 | 5 |
| 2020 | 6 | 3 |
| 2021 | 1 | 2 |
| 2022 | 1 | 4 |
| 2023 | 2 | 4 |
| 2024 | 0 | 1 |
| 2025 | 3 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for cryogenic fractionation of air, air fractionation plant and integrated system composed of at least two air fractionation plants30 Dec 2025US 12,510,294 B2Linde Aktiengesellschaft
- System for purifying argon by cryogenic distillation23 Dec 2025US 12,503,365 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Integrated nitrogen liquefier for a nitrogen and argon producing cryogenic air separation unit11 Mar 2025US 12,247,783 B2Linde Aktiengesellschaft
- Method and unit for low-temperature air separation19 Dec 2023US 11,846,468 B2Linde Aktiengesellschaft
- Integrated nitrogen liquefier for a nitrogen and argon producing cryogenic air separation unit18 Apr 2023US 11,629,913 B2Praxair Technology, Inc.
- Method for cryogenic separation of air, and air separation plant16 Jul 2026US 2026/0202125 A1Linde Aktiengesellschaft
- Method for the low-temperature separation of air and air separation plant28 Nov 2024US 2024/0393043 A1Linde Aktiengesellschaft
- Process and apparatus for cryogenic separation of air with mixed gas turbine9 Nov 2023US 2023/0358468 A1Linde Aktiengesellschaft
- Integrated nitrogen liquefier for a nitrogen and argon producing cryogenic air separation unit13 Jul 2023US 2023/0221069 A1Linde Aktiengesellschaft
- Process for cryogenic fractionation of air, air fractionation plant and integrated system composed of at least two air fractionation plants1 Jun 2023US 2023/0168030 A1Linde Aktiengesellschaft
Most cited
By later US patents
- Process and unit for supplying a gas under pressure to an installation that consumes a constituent of air17US 5,505,052 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1996
- Retrofittable argon recovery improvement to air separation12US 4,715,874 A1987
- Process for the production of crude argon9US 4,932,212 ALinde Aktiengesellschaft · 1990
- Process and unit for supplying a gas under pressure to an installation that consumes a constituent of air7US 5,566,556 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1996
- Method and apparatus for argon rejection and recovery6US 10,066,871 B2Praxair Technology, Inc. · 2018