F25J 3/04048
By compression of cold gaseous streams
Official title: {by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams}
F25J3/04048 (By compression of cold gaseous streams) appears on 147 US grants and 159 published applications in this corpus.
Search patents in F25J- Granted patents
- 147
- Published applications
- 159
- Assignees
- 50
- Inventors
- 216
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 8 | 1 |
| 2002 | 5 | 5 |
| 2003 | 5 | 1 |
| 2004 | 1 | 7 |
| 2005 | 3 | 2 |
| 2006 | 2 | 4 |
| 2007 | 3 | 8 |
| 2008 | 2 | 6 |
| 2009 | 2 | 7 |
| 2010 | 1 | 3 |
| 2011 | 1 | 8 |
| 2012 | 0 | 9 |
| 2013 | 2 | 5 |
| 2014 | 2 | 9 |
| 2015 | 7 | 5 |
| 2016 | 3 | 11 |
| 2017 | 4 | 8 |
| 2018 | 6 | 5 |
| 2019 | 8 | 9 |
| 2020 | 4 | 6 |
| 2021 | 7 | 9 |
| 2022 | 3 | 9 |
| 2023 | 4 | 8 |
| 2024 | 6 | 7 |
| 2025 | 3 | 3 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Air separation unit and air separation method25 Aug 2026US 12,716,651 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method and plant for low temperature fractionation of air18 Aug 2026US 12,710,228 B2Linde Aktiengesellschaft
- Power generation process utilizing fuel, liquid air and/or oxygen with zero CO2 emissions28 Apr 2026US 12,613,064 B2Saipem S.P.A.
- Nitrogen generating device and nitrogen generating method31 Mar 2026US 12,590,758 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Air separation unit and method for cryogenic separation of air using a distillation column system including an intermediate pressure kettle column8 Jul 2025US 12,352,496 B2Praxair Technology, Inc.
- Process and apparatus for purifying air and cryogenic air separation process and plant20 Aug 2026US 2026/0243508 A1
- Process and apparatus for intermittent liquefaction operation that can support continuous air separation processing6 Aug 2026US 2026/0227123 A1Air Products and Chemicals, Inc.
- Method for cryogenic separation of air, and air separation plant16 Jul 2026US 2026/0202125 A1Linde Aktiengesellschaft
- High-purity oxygen production apparatus5 Mar 2026US 2026/0063360 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes 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
- Hydrocarbon combustion power generation system with CO2 sequestration337US 6,389,814 B1Clean Energy Systems, Inc. · 2002
- Hydrocarbon combustion power generation system with CO2 sequestration216US 7,043,920 B2Clean Energy Systems, Inc. · 2006
- Hydrocarbon combustion power generation system with CO2 sequestration209US 6,170,264 B2Clean Energy Systems, Inc. · 2001
- Hydrocarbon combustion power generation system with CO2 sequestration163US 6,598,398 B2Clean Energy Systems, Inc. · 2003
- Low pollution power generation system with ion transfer membrane air separation154US 6,945,029 B2Clean Energy Systems, Inc. · 2005