F25J 2245/50
The recycled stream being oxygen
Official title: the recycled stream being oxygen
F25J2245/50 (The recycled stream being oxygen) appears on 169 US grants and 118 published applications in this corpus.
Search patents in F25J- Granted patents
- 169
- Published applications
- 118
- Assignees
- 45
- Inventors
- 245
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 8 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 12 | 1 |
| 2002 | 7 | 4 |
| 2003 | 4 | 1 |
| 2004 | 4 | 10 |
| 2005 | 5 | 0 |
| 2006 | 2 | 3 |
| 2007 | 1 | 6 |
| 2008 | 2 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 2 |
| 2012 | 1 | 2 |
| 2013 | 2 | 4 |
| 2014 | 2 | 2 |
| 2015 | 0 | 0 |
| 2016 | 3 | 4 |
| 2017 | 2 | 7 |
| 2018 | 1 | 4 |
| 2019 | 6 | 6 |
| 2020 | 7 | 11 |
| 2021 | 10 | 13 |
| 2022 | 6 | 6 |
| 2023 | 6 | 11 |
| 2024 | 8 | 10 |
| 2025 | 4 | 5 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and process for improved argon recovery8 Sep 2026US 12,729,908 B2Air Products and Chemicals, Inc.
- 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
- Air separation apparatus7 Apr 2026US 12,595,961 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Integrated ammonia and sulfuric acid production plant and process20 Jan 2026US 12,528,752 B2Chemetics Inc.
- 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
- Air separation method and air separation device30 Jul 2026US 2026/0218981 A1Taiyo Nippon Sanso Corporation
- Air separation unit2 Apr 2026US 2026/0092735 A1L' Air Liquide, Societe Anonyme pour I' Etude et I'Exploitation des Procedes Georges Claude
- Processing Gases18 Dec 2025US 2025/0383143 A1NET Power LLC
- Apparatus and Process for Improved Argon Recovery9 Oct 2025US 2025/0314424 A1Air Products and Chemicals, Inc.
- 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
- Closed cycle gas turbine for gaseous production199US 4,434,613 AGeneral Electric Company · 1984
- Process for recovering hydrogen from a multi-component gas stream113US 4,654,063 AAir Products and Chemicals, Inc. · 1987
- 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
- Production of liquid oxygen and/or liquid nitrogen37US 4,152,130 AAir Products and Chemicals, Inc. · 1979