F25J 3/04812
Different modes, i.e. "runs" of operation
Official title: {Different modes, i.e. "runs" of operation (F25J3/04472 takes precedence)}
F25J3/04812 (Different modes, i.e. "runs" of operation) appears on 178 US grants and 195 published applications in this corpus.
Search patents in F25J- Granted patents
- 178
- Published applications
- 195
- Assignees
- 64
- Inventors
- 357
- Latest grant
- 25 Aug 2026
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| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
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| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 8 | 0 |
| 2001 | 3 | 2 |
| 2002 | 4 | 5 |
| 2003 | 4 | 0 |
| 2004 | 2 | 7 |
| 2005 | 6 | 4 |
| 2006 | 3 | 5 |
| 2007 | 2 | 6 |
| 2008 | 3 | 6 |
| 2009 | 3 | 10 |
| 2010 | 3 | 4 |
| 2011 | 3 | 16 |
| 2012 | 0 | 10 |
| 2013 | 4 | 9 |
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| 2016 | 8 | 9 |
| 2017 | 8 | 12 |
| 2018 | 8 | 11 |
| 2019 | 11 | 5 |
| 2020 | 7 | 7 |
| 2021 | 6 | 10 |
| 2022 | 3 | 11 |
| 2023 | 2 | 11 |
| 2024 | 9 | 10 |
| 2025 | 9 | 4 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Power generation process utilizing fuel, liquid air and/or oxygen with zero CO2 emissions25 Aug 2026US 12,716,650 B2Saipem S.P.A.
- Oxygen liquefier design phasing26 May 2026US 12,638,235 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Power generation process utilizing fuel, liquid air and/or oxygen with zero CO2 emissions28 Apr 2026US 12,613,064 B2Saipem S.P.A.
- 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
- Apparatus and process for liquefying gases9 Dec 2025US 12,492,864 B1
- Process and apparatus for intermittent liquefaction operation that can support continuous air separation processing6 Aug 2026US 2026/0227123 A1Air Products and Chemicals, Inc.
- Apparatus and method for maintaining or increasing liquid production of an air separation unit9 Jul 2026US 2026/0194295 A1Air Liquide Large Industries U.S. LP
- Compressed carbon dioxide energy storage system and method combined with air separation technology25 Jun 2026US 2026/0176984 A1Xi' An Jiaotong University
- Process and apparatus for separating a gas mixture5 Feb 2026US 2026/0036365 A1L'Air Liquide, Société Anonyme pour I'Etube et I'Exploitation des Procédés Georges Claude
- Process and plant for providing a nitrogen product, an oxygen product and a hydrogen product28 Aug 2025US 2025/0271208 A1Linde Aktiengesellschaft
Most cited
By later US patents
- Integrated method of air separation and of energy generation and plant for the implementation of such a method46US 6,612,113 B2L 'Air Liquide-Societe 'Anonyme a 'Directoire et Conseil de Surveillance pour l 'Etude et L'Exploitation des Procedes Georges Claude · 2003
- Integrated air-separation/energy-generation process and plant for implementing such a process45US 6,550,234 B2L 'Air Liquide-Societe 'Anonyme a 'Directoire et Conseil de Surveillance pour l 'Etude et L'Exploitation des Procedes Georges Claude · 2003
- High pressure combustion turbine and air separation system integration41US 5,666,823 AAir Products and Chemicals, Inc. · 1997
- Operation of integrated gasification combined cycle power generation systems at part load39US 5,740,673 AAir Products and Chemicals, Inc. · 1998
- Supplemental air supply for an air separation system35US 6,116,027 AAir Products and Chemicals, Inc. · 2000