F25J 1/0291
Refrigerant compression by combined gas compression and liquid pumping
Official title: {Refrigerant compression by combined gas compression and liquid pumping}
F25J1/0291 (Refrigerant compression by combined gas compression and liquid pumping) appears on 91 US grants and 92 published applications in this corpus.
Search patents in F25J- Granted patents
- 91
- Published applications
- 92
- Assignees
- 39
- Inventors
- 185
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 0 |
| 2002 | 4 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 3 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 0 | 4 |
| 2014 | 0 | 7 |
| 2015 | 0 | 7 |
| 2016 | 2 | 4 |
| 2017 | 2 | 6 |
| 2018 | 3 | 5 |
| 2019 | 6 | 21 |
| 2020 | 6 | 5 |
| 2021 | 6 | 2 |
| 2022 | 20 | 9 |
| 2023 | 4 | 2 |
| 2024 | 4 | 5 |
| 2025 | 0 | 2 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Single mixed refrigerant LNG production process22 Sep 2026US 12,742,588 B2Honeywell Lng LLC
- Cryogenic gas cooling system and method16 Jun 2026US 12,656,057 B2Chart Energy & Chemicals, Inc.
- System, method and apparatus for the regeneration of nitrogen energy within a closed loop cryogenic system7 Apr 2026US 12,595,938 B2
- Methods and configurations for LNG liquefaction31 Dec 2024US 12,181,214 B2JTurbo Engineering & Technology, LLC
- Mixed refrigerant hydrogen liquefaction device and method of using same10 Dec 2024US 12,163,736 B2Hangzhou Oxygen Plant Group Co., Ltd.
- Single Mixed Refrigerant LNG Production Process22 May 2025US 2025/0164184 A1Honeywell Lng LLC
- Method and System for Ultra-Low Emissions of Natural Gas Storage and Redeployment8 May 2025US 2025/0146744 A1
- Installation and method for the liquefaction of hydrogen28 Nov 2024US 2024/0393041 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Cryogenic Gas Cooling System and Method14 Nov 2024US 2024/0377127 A1Chart Energy & Chemicals, Inc.
- Method and plant for hydrogen liquefaction1 Aug 2024US 2024/0255216 A1Engie
Most cited
By later US patents
- Enhanced NGL recovery utilizing refrigeration and reflux from LNG plants112US 6,401,486 B12002
- Multi-component refrigeration process for liquefaction of natural gas100US 5,950,453 AExxon Production Research Company · 1999
- Hybrid cycle for the production of liquefied natural gas77US 6,308,531 B1Air Products and Chemicals, Inc. · 2001
- Liquefaction of natural gas using process-loaded expanders73US 4,970,867 AAir Products and Chemicals, Inc. · 1990
- Feed gas drier precooling in mixed refrigerant natural gas liquefaction processes59US 4,755,200 AAir Products and Chemicals, Inc. · 1988