F25J 2235/50
The fluid being oxygen
Official title: the fluid being oxygen
F25J2235/50 (The fluid being oxygen) appears on 166 US grants and 110 published applications in this corpus.
Search patents in F25J- Granted patents
- 166
- Published applications
- 110
- Assignees
- 39
- Inventors
- 222
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 8 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 8 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 2 | 0 |
| 2000 | 11 | 0 |
| 2001 | 16 | 5 |
| 2002 | 11 | 5 |
| 2003 | 6 | 3 |
| 2004 | 4 | 8 |
| 2005 | 5 | 0 |
| 2006 | 2 | 4 |
| 2007 | 2 | 8 |
| 2008 | 4 | 6 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 2 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 0 | 2 |
| 2015 | 0 | 2 |
| 2016 | 3 | 5 |
| 2017 | 0 | 6 |
| 2018 | 5 | 4 |
| 2019 | 7 | 6 |
| 2020 | 5 | 4 |
| 2021 | 2 | 10 |
| 2022 | 3 | 5 |
| 2023 | 4 | 10 |
| 2024 | 6 | 5 |
| 2025 | 6 | 4 |
| 2026 | 2 | 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.
- Power generation process utilizing fuel, liquid air and/or oxygen with zero CO2 emissions28 Apr 2026US 12,613,064 B2Saipem S.P.A.
- Device and method for producing hydrogen and byproduct oxygen by using green electricity electrolyzed water16 Dec 2025US 12,497,705 B2Hangzhou Oxygen Plant Group Co., Ltd.
- Apparatus and process for liquefying gases9 Dec 2025US 12,492,864 B1
- Device and method for recovering by-product oxygen of hydrogen production from electrolyzed water by low-temperature method5 Aug 2025US 12,378,686 B2Hangzhou Oxygen Plant Group Co., Ltd.
- 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
- Method and system for providing gaseous compressed oxygen12 Jun 2025US 2025/0189216 A1Linde Aktiengesellschaft
- Argon column for air separation unit and air separation unit13 Mar 2025US 2025/0085050 A1Taiyo Nippon Sanso Corporation
- Method for the cryogenic separation of air, and air separation plant13 Feb 2025US 2025/0052493 A1
Most cited
By later US patents
- Air separation process and apparatus for high argon recovery and moderate pressure nitrogen recovery46US 4,822,395 AUnion Carbide Corporation · 1989
- Low temperature air fractionation accommodating variable oxygen demand44US 5,084,081 ALinde Aktiengesellschaft · 1992
- Boiling process and a heat exchanger for use in the process37US 5,122,174 AAir Products and Chemicals, Inc. · 1992
- Low emission energy source37US 7,191,736 B2Los Angeles Advisory Services, Inc. · 2007
- Process and apparatus for the recovery of krypton and/or xenon36US 6,694,775 B1Air Products and Chemicals, Inc. · 2004