F25J 2240/44
The fluid being nitrogen
Official title: the fluid being nitrogen
F25J2240/44 (The fluid being nitrogen) appears on 37 US grants and 51 published applications in this corpus.
Search patents in F25J- Granted patents
- 37
- Published applications
- 51
- Assignees
- 21
- Inventors
- 80
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 3 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 4 |
| 2014 | 0 | 2 |
| 2015 | 0 | 2 |
| 2016 | 2 | 3 |
| 2017 | 3 | 14 |
| 2018 | 1 | 4 |
| 2019 | 5 | 2 |
| 2020 | 2 | 3 |
| 2021 | 2 | 1 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 4 |
| 2025 | 1 | 3 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for storing and producing energy to stabilize the power network26 May 2026US 12,638,234 B2Saipem S.P.A.
- Liquid nitrogen energy storage system21 Apr 2026US 12,607,399 B2Praxair Technology, Inc.
- Method for obtaining one or more air products, and air separation unit14 Jan 2025US 12,196,488 B2Linde Aktiengesellschaft
- Method and plant for generation of synthesis gas24 Jan 2023US 11,560,308 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Liquid natural gas liquefier utilizing mechanical and liquid nitrogen refrigeration2 Aug 2022US 11,402,151 B2Praxair Technology, Inc.
- System and Method for Separating Nitrogen from Methane with Ultra-Low Greenhouse Gas Emissions7 Aug 2025US 2025/0251189 A1BCCK Holding Company
- Hydrogen cooling31 Jul 2025US 2025/0244075 A1
- Air separation system and air separation method2 Jan 2025US 2025/0003679 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Installation and a method for cooling a fluid to cryogenic temperature12 Dec 2024US 2024/0410649 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Nitrogen Rejection Unit System and Method for Low Nitrogen Concentration Feeds5 Dec 2024US 2024/0401877 A1
Most cited
By later US patents
- Combustion turbine and elevated pressure air separation system with argon recovery27US 5,722,259 AAir Products and Chemicals, Inc. · 1998
- Process for the separation of air23US 4,662,917 AAir Products and Chemicals, Inc. · 1987
- Nitrogen rejection method and apparatus19US 7,373,790 B2The BOC Group, Inc. · 2008
- Cryogenic process for the separation of air to produce moderate pressure nitrogen15US 5,129,932 AAir Products and Chemicals, Inc. · 1992
- Process and installation for the production of gaseous oxygen under pressure13US 5,408,831 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1995