F25J 2215/54
Oxygen production with multiple pressure o2
Official title: Oxygen production with multiple pressure O2
F25J2215/54 (Oxygen production with multiple pressure o2) appears on 30 US grants and 27 published applications in this corpus.
Search patents in F25J- Granted patents
- 30
- Published applications
- 27
- Assignees
- 13
- Inventors
- 56
- Latest grant
- 9 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 0 | 0 |
| 1999 | 5 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 2 |
| 2015 | 0 | 1 |
| 2016 | 0 | 2 |
| 2017 | 2 | 3 |
| 2018 | 2 | 3 |
| 2019 | 3 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for obtaining one or more air products, and air fractionation plant9 Sep 2025US 12,410,974 B2Linde Aktiengesellschaft
- Method for obtaining one or more air products, and air separation unit14 Jan 2025US 12,196,488 B2Linde Aktiengesellschaft
- Cryogenic air separation unit with argon condenser vapor recycle19 Mar 2024US 11,933,539 B2Praxair Technology, Inc.
- Process for obtaining one or more air products and air separation plant24 Aug 2021US 11,098,950 B2Linde Aktiengesellschaft
- Method and device for the cryogenic decomposition of air15 Oct 2019US 10,443,931 B2Linde Aktiengesellschaft
- Method for cryogenic separation of air, and air separation plant16 Jul 2026US 2026/0202125 A1Linde Aktiengesellschaft
- Method for the cryogenic separation of air, and air separation plant13 Feb 2025US 2025/0052493 A1
- Method for obtaining one or more air products, and air fractionation plant9 Nov 2023US 2023/0358466 A1Linde Aktiengesellschaft
- Cryogenic air separation unit with argon condenser vapor recycle16 Feb 2023US 2023/0052938 A1Praxair Technology, Inc.
- Process and apparatus for supplying a backup gas under pressure3 Mar 2022US 2022/0065528 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
Most cited
By later US patents
- Advanced hybrid coal gasification cycle utilizing a recycled working fluid63US 6,877,322 B2Foster Wheeler Energy Corporation · 2005
- Process and installation for production of high pressure gaseous fluid38US 5,475,980 AL'Air Liquide, Societe Anonyme pour l'Etude l'Exploitation des Procedes Georges Claude · 1995
- Process and apparatus for the production of gaseous oxygen under pressure29US 5,329,776 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1994
- Cryogenic rectification system for producing high pressure gaseous oxygen and liquid product27US 5,655,388 APraxair Technology, Inc. · 1997
- Vaporization of liquid oxygen for increased argon recovery20US 5,255,522 AAir Products and Chemicals, Inc. · 1993