F25J 2270/904
By liquid or gaseous cryogen in an open loop
Official title: by liquid or gaseous cryogen in an open loop
F25J2270/904 (By liquid or gaseous cryogen in an open loop) appears on 181 US grants and 208 published applications in this corpus.
Search patents in F25J- Granted patents
- 181
- Published applications
- 208
- Assignees
- 111
- Inventors
- 450
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 0 |
| 2002 | 4 | 4 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 0 | 4 |
| 2006 | 0 | 5 |
| 2007 | 6 | 2 |
| 2008 | 2 | 8 |
| 2009 | 1 | 5 |
| 2010 | 0 | 14 |
| 2011 | 1 | 5 |
| 2012 | 2 | 8 |
| 2013 | 7 | 10 |
| 2014 | 5 | 6 |
| 2015 | 2 | 7 |
| 2016 | 3 | 4 |
| 2017 | 7 | 8 |
| 2018 | 6 | 22 |
| 2019 | 13 | 9 |
| 2020 | 7 | 12 |
| 2021 | 10 | 13 |
| 2022 | 9 | 9 |
| 2023 | 11 | 21 |
| 2024 | 8 | 12 |
| 2025 | 11 | 11 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for generating refrigeration for a carbon monoxide cold box15 Sep 2026US 12,736,281 B2Praxair Technology, Inc.
- Apparatus and process for removal of heavy hydrocarbons from a feed gas11 Aug 2026US 12,703,831 B2Honeywell Lng LLC
- Process for separating hydrogen from an olefin hydrocarbon effluent vapor stream2 Jun 2026US 12,643,067 B2Enflex, Inc.
- Dehydrogenation and pyrolysis product recovery with a common refrigerant2 Jun 2026US 12,643,843 B2Uop LLC
- Ethane separation with overhead cryogenic heat exchanger28 Apr 2026US 12,613,065 B2Uop LLC
- Low-temperature distillation method for capturing carbon dioxide11 Jun 2026US 2026/0160489 A1Shihezi University
- Method and installation for the production of a liquefied cryogenic fluid9 Apr 2026US 2026/0098682 A1L'Air Liquide, Société Anonyme pour |'Etude et |'Exploitation des Procédés Georges Claude
- Utilizing liquefied natural gas for cryogenic cooling of cracked gas from a light hydrocarbon catalytic cracker5 Mar 2026US 2026/0062623 A1Chevron U.S.A.Inc.
- Gas collection chamber with adsorber26 Feb 2026US 2026/0054270 A1Lunar Helium-3 Mining, LLC
- System and method for simultaneously producing high-purity liquid nitrogen and high-purity liquid carbon dioxide at low cost by using flue gas26 Feb 2026US 2026/0055956 A1Hangzhou Oxygen Plant Group Co., Ltd.
Most cited
By later US patents
- Combined power cycle with liquefied natural gas (LNG) and synthesis or fuel gas140US 5,295,350 ATexaco Inc. · 1994
- Method for the recovery of low purity carbon dioxide104US 4,977,745 A1990
- Integration of LNG regasification with refinery and power generation87US 8,316,665 B2Fluor Technologies Corporation · 2012
- Method and apparatus for removing pollutants from flue gas84US 5,467,722 A1995
- Combined power cycle with liquefied natural gas (LNG) and synthesis or fuel gas75US 5,394,686 ATexaco Inc. · 1995