F25J 3/04951
Arrangements of multiple air fractionation units or multiple equipments fulfilling the same
Official title: {Arrangements of multiple air fractionation units or multiple equipments fulfilling the same process step, e.g. multiple trains in a network (F25J3/04636 takes precedence)}
F25J3/04951 (Arrangements of multiple air fractionation units or multiple equipments fulfilling the same) appears on 102 US grants and 103 published applications in this corpus.
Search patents in F25J- Granted patents
- 102
- Published applications
- 103
- Assignees
- 40
- Inventors
- 189
- Latest grant
- 30 Dec 2025
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| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
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| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
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| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
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| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
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| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 7 | 0 |
| 2002 | 1 | 3 |
| 2003 | 5 | 3 |
| 2004 | 2 | 7 |
| 2005 | 6 | 1 |
| 2006 | 2 | 5 |
| 2007 | 2 | 5 |
| 2008 | 2 | 2 |
| 2009 | 2 | 3 |
| 2010 | 0 | 6 |
| 2011 | 1 | 7 |
| 2012 | 1 | 7 |
| 2013 | 2 | 4 |
| 2014 | 4 | 6 |
| 2015 | 4 | 5 |
| 2016 | 1 | 9 |
| 2017 | 6 | 2 |
| 2018 | 2 | 1 |
| 2019 | 4 | 4 |
| 2020 | 4 | 6 |
| 2021 | 3 | 5 |
| 2022 | 2 | 6 |
| 2023 | 2 | 3 |
| 2024 | 3 | 1 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Fluid recovery process and apparatus for xenon and or krypton recovery1 Oct 2024US 12,104,850 B2Air Products and Chemicals, Inc.
- Chiller, air separation system, and related methods16 Jul 2024US 12,038,230 B2Air Products and Chemicals, Inc.
- Air separation device16 Apr 2024US 11,959,702 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method and apparatus for separating air by cryogenic distillation26 Dec 2023US 11,852,408 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Air separation method and air separation device30 Jul 2026US 2026/0218981 A1Taiyo Nippon Sanso Corporation
- Air separation method and plant18 Dec 2025US 2025/0383144 A1Linde Aktiengesellschaft
- Liquefied gas supply system and air separation unit comprising same14 Nov 2024US 2024/0377130 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- 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
- Cryogenic Air Separation Method and Air Separation Unit27 Apr 2023US 2023/0125267 A1Cryostar SAS
Most cited
By later US patents
- Combined air separation natural gas liquefaction plant104US 7,143,606 B2L'Air Liquide-Societe Anonyme a'Directoire et Conseil de Surveillance pour l'Etide et l'Exploitation des Procedes Georges Claude · 2006
- Air separation process and system with gas turbine drivers97US 6,345,493 B1Air Products and Chemicals, Inc. · 2002
- Integrated apparatus for generating power and/or oxygen enriched fluid and process for the operation thereof91US 6,202,442 B1L'Air Liquide Societe Anonyme Pour l'Etude et l'Expoitation des Procedes Georges Claude · 2001
- 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
- Apparatus for the low-temperature separation of a gas mixture, in particular air80US 7,516,626 B2Linde Aktiengesellschaft · 2009