F25J 3/0486
Of vaporisers for oxygen enriched liquids
Official title: {of vaporisers for oxygen enriched liquids, e.g. purging of liquids}
F25J3/0486 (Of vaporisers for oxygen enriched liquids) appears on 86 US grants and 73 published applications in this corpus.
Search patents in F25J- Granted patents
- 86
- Published applications
- 73
- Assignees
- 23
- Inventors
- 144
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 3 |
| 2002 | 7 | 3 |
| 2003 | 2 | 4 |
| 2004 | 1 | 1 |
| 2005 | 2 | 0 |
| 2006 | 1 | 2 |
| 2007 | 1 | 0 |
| 2008 | 3 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 2 |
| 2012 | 0 | 2 |
| 2013 | 1 | 4 |
| 2014 | 1 | 3 |
| 2015 | 2 | 4 |
| 2016 | 1 | 5 |
| 2017 | 4 | 3 |
| 2018 | 2 | 2 |
| 2019 | 4 | 8 |
| 2020 | 7 | 5 |
| 2021 | 4 | 6 |
| 2022 | 1 | 3 |
| 2023 | 3 | 4 |
| 2024 | 3 | 3 |
| 2025 | 3 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Air separation unit and method for cryogenic separation of air using a distillation column system including an intermediate pressure kettle column15 Sep 2026US 12,736,282 B2Praxair Technology, Inc.
- Method and plant for low temperature fractionation of air18 Aug 2026US 12,710,228 B2Linde Aktiengesellschaft
- Apparatus and process for liquefying gases9 Dec 2025US 12,492,864 B1
- 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.
- Integrated nitrogen liquefier for a nitrogen and argon producing cryogenic air separation unit11 Mar 2025US 12,247,783 B2Linde Aktiengesellschaft
- Process and plant for providing a nitrogen product, an oxygen product and a hydrogen product28 Aug 2025US 2025/0271208 A1Linde Aktiengesellschaft
- System for determining the proportion of at least one impurity in a cryogenic liquid27 Mar 2025US 2025/0102406 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method and system for determining the content of at least one impurity in a cryogenic liquid27 Mar 2025US 2025/0102407 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method and plant for low temperature fractionation of air6 Jun 2024US 2024/0183610 A1Linde Aktiengesellschaft
- Air separation unit and method for cryogenic separation of air using a distillation column system including an intermediate pressure kettle column1 Feb 2024US 2024/0035740 A1Praxair Technology, Inc.
Most cited
By later US patents
- Air separation process and system utilizing pressure-swing driers95US 3,967,464 AAir Products and Chemicals, Inc. · 1976
- Cryogenic air separation with cold argon recycle38US 4,533,375 A1985
- Production of liquid oxygen and/or liquid nitrogen37US 4,152,130 AAir Products and Chemicals, Inc. · 1979
- Boiling process and a heat exchanger for use in the process37US 5,122,174 AAir Products and Chemicals, Inc. · 1992
- Air separation process for the production of oxygen-rich and nitrogen-rich products34US 4,936,099 AAir Products and Chemicals, Inc. · 1990