F25J 2250/50
One fluid being oxygen
F25J2250/50 (One fluid being oxygen) appears on 182 US grants and 72 published applications in this corpus.
Search patents in F25J- Granted patents
- 182
- Published applications
- 72
- Assignees
- 51
- Inventors
- 224
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 6 | 0 |
| 1988 | 10 | 0 |
| 1989 | 9 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 8 | 0 |
| 1993 | 12 | 0 |
| 1994 | 8 | 0 |
| 1995 | 11 | 0 |
| 1996 | 6 | 0 |
| 1997 | 8 | 0 |
| 1998 | 12 | 0 |
| 1999 | 7 | 0 |
| 2000 | 8 | 0 |
| 2001 | 10 | 2 |
| 2002 | 5 | 3 |
| 2003 | 4 | 3 |
| 2004 | 2 | 3 |
| 2005 | 5 | 3 |
| 2006 | 0 | 1 |
| 2007 | 0 | 5 |
| 2008 | 2 | 3 |
| 2009 | 2 | 2 |
| 2010 | 0 | 0 |
| 2011 | 3 | 3 |
| 2012 | 1 | 4 |
| 2013 | 0 | 4 |
| 2014 | 1 | 5 |
| 2015 | 2 | 3 |
| 2016 | 0 | 3 |
| 2017 | 4 | 1 |
| 2018 | 2 | 1 |
| 2019 | 2 | 1 |
| 2020 | 2 | 3 |
| 2021 | 2 | 4 |
| 2022 | 1 | 6 |
| 2023 | 1 | 4 |
| 2024 | 1 | 3 |
| 2025 | 3 | 1 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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.
- 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
- Power generation process utilizing fuel, liquid air and/or oxygen with zero CO2 emissions28 Apr 2026US 12,613,064 B2Saipem S.P.A.
- Hydrocarbon gas processing1 Jul 2025US 12,344,807 B2Uop LLC
- Method to convert excess liquid oxygen into liquid nitrogen20 May 2025US 12,305,916 B2Airgas, Inc.
- Air separation method and air separation device30 Jul 2026US 2026/0218981 A1Taiyo Nippon Sanso Corporation
- System and method for producing ammonia30 Oct 2025US 2025/0333316 A1Siemens Energy Global GmbH & Co. KG
- Process and Apparatus for Xenon and or Krypton Recovery14 Nov 2024US 2024/0375958 A1Air Products and Chemicals, Inc.
- Power Production Plant Including Liquid Oxygen Storage and Method of Operation of the Power Production Plant18 Jul 2024US 2024/0240587 A18 Rivers Capital, LLC
- Air separation unit and air separation method15 Feb 2024US 2024/0053097 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
Most cited
By later US patents
- Power plant with carbon dioxide capture and zero pollutant emissions254US 5,724,805 AUniversity of Massachusetts Lowell · 1998
- Zero emissions closed rankine cycle power system124US 7,882,692 B2Clean Energy Systems, Inc. · 2011
- Air separation process and system utilizing pressure-swing driers95US 3,967,464 AAir Products and Chemicals, Inc. · 1976
- Triple column distillation system for oxygen and pressurized nitrogen production46US 5,341,646 AAir Products and Chemicals, Inc. · 1994
- Tonnage nitrogen generator38US 4,222,756 AAir Products and Chemicals, Inc. · 1980