F25J 1/0072
Nitrogen
Official title: {Nitrogen}
F25J1/0072 (Nitrogen) appears on 186 US grants and 351 published applications in this corpus.
Search patents in F25J- Granted patents
- 186
- Published applications
- 351
- Assignees
- 102
- Inventors
- 497
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 3 |
| 2002 | 4 | 0 |
| 2003 | 2 | 3 |
| 2004 | 1 | 0 |
| 2005 | 1 | 3 |
| 2006 | 1 | 2 |
| 2007 | 0 | 2 |
| 2008 | 1 | 5 |
| 2009 | 4 | 11 |
| 2010 | 0 | 23 |
| 2011 | 3 | 11 |
| 2012 | 3 | 4 |
| 2013 | 5 | 6 |
| 2014 | 9 | 11 |
| 2015 | 4 | 11 |
| 2016 | 6 | 8 |
| 2017 | 10 | 22 |
| 2018 | 4 | 29 |
| 2019 | 8 | 19 |
| 2020 | 11 | 16 |
| 2021 | 9 | 25 |
| 2022 | 17 | 34 |
| 2023 | 20 | 35 |
| 2024 | 16 | 38 |
| 2025 | 15 | 19 |
| 2026 | 13 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydrogen liquefaction system and hydrogen liquefaction method29 Sep 2026US 12,747,911 B2H2CREO Corp.
- Liquefied hydrogen production device22 Sep 2026US 12,742,590 B2Jgc Corporation
- System and method for co-production of a densified liquid oxygen product and densified liquid methane product15 Sep 2026US 12,736,280 B2Praxair Technology, Inc.
- Refrigeration-integrated hydrocarbon collection system and method of operation25 Aug 2026US 12,716,649 B2Oxy Low Carbon Ventures, LLC
- Installation and process for production of a cryogenic fluid16 Jun 2026US 12,656,056 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Assembly for storing a liquefied cryogenic fluid, vehicle and method27 Aug 2026US 2026/0251269 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Fluid liquefaction method and device27 Aug 2026US 2026/0251384 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Cryogenic type boil-off gas reliquefaction system20 Aug 2026US 2026/0243505 A1Shanghai Marine Diesel Engine Research Institute
- System and method for precooling in hydrogen or helium liquefaction processing9 Jul 2026US 2026/0194293 A1Air Water Gas Solutions, Inc.
- Carbon dioxide recovery system and carbon dioxide recovery method18 Jun 2026US 2026/0166471 A1Mitsubishi Heavy Industries, Ltd.
Most cited
By later US patents
- LNG production using dual independent expander refrigeration cycles149US 6,412,302 B1ABB Lummus Global, Inc. - Randall Division · 2002
- Integrated high pressure NGL recovery in the production of liquefied natural gas94US 6,662,589 B1Air Products and Chemicals, Inc. · 2003
- Hybrid cycle for the production of liquefied natural gas77US 6,308,531 B1Air Products and Chemicals, Inc. · 2001
- Method and system for offshore production of liquefied natural gas68US 6,003,603 ADen Norske Stats Ol jesel skap A.S. · 1999
- Liquefaction apparatus50US 6,250,244 B1BHP Petroleum Pty Ltd. · 2001