F25J 1/0238
Purification or treatment step is integrated within one refrigeration cycle only, i.e.
Official title: {Purification or treatment step is integrated within one refrigeration cycle only, i.e. the same or single refrigeration cycle provides feed gas cooling (if present) and overhead gas cooling}
F25J1/0238 (Purification or treatment step is integrated within one refrigeration cycle only, i.e.) appears on 75 US grants and 104 published applications in this corpus.
Search patents in F25J- Granted patents
- 75
- Published applications
- 104
- Assignees
- 42
- Inventors
- 163
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 4 |
| 2008 | 1 | 2 |
| 2009 | 1 | 4 |
| 2010 | 0 | 5 |
| 2011 | 0 | 2 |
| 2012 | 0 | 4 |
| 2013 | 0 | 4 |
| 2014 | 1 | 4 |
| 2015 | 3 | 5 |
| 2016 | 2 | 6 |
| 2017 | 4 | 11 |
| 2018 | 3 | 5 |
| 2019 | 4 | 19 |
| 2020 | 4 | 8 |
| 2021 | 4 | 5 |
| 2022 | 13 | 4 |
| 2023 | 6 | 4 |
| 2024 | 4 | 2 |
| 2025 | 3 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing liquefied natural gas from natural gas, and corresponding plant13 Jan 2026US 12,523,421 B2Technip Energies France
- Systems and methods for removing nitrogen during liquefaction of natural gas28 Oct 2025US 12,455,114 B2ConocoPhillips Company
- Gas stream component removal system and method19 Aug 2025US 12,392,549 B2Chart Energy & Chemicals, Inc.
- Open loop liquefaction process with NGL recovery22 Jul 2025US 12,366,408 B2Honeywell Lng LLC
- Heavy hydrocarbon and BTEX removal from pipeline gas to LNG liquefaction24 Sep 2024US 12,098,882 B2Fluor Technologies Corporation
- Nitrogen Rejection Unit with Mixed Refrigerant Cooling System and Method28 May 2026US 2026/0146785 A1
- Systems and methods for removing nitrogen during liquefaction of natural gas5 Feb 2026US 2026/0036367 A1ConocoPhillips Company
- Gas liquefaction system with multiple refrigerant cycles30 Oct 2025US 2025/0334330 A1Nuovo Pignone Tecnologie Srl
- Open loop liquefaction process with ngl recovery26 Jun 2025US 2025/0207852 A1Honeywell Lng LLC
- Integrated refrigeration system of a liquefied natural gas production plant comprising a carbon capture unit26 Sep 2024US 2024/0318907 A1Nuovo Pignone Tecnologie Srl
Most cited
By later US patents
- Enhanced NGL recovery utilizing refrigeration and reflux from LNG plants112US 6,401,486 B12002
- Natural gas liquefaction with improved nitrogen removal79US 6,631,626 B1ConocoPhillips Company · 2003
- Process of liquefying a gaseous, methane-rich feed to obtain liquefied natural gas52US 6,272,882 B1Shell Research Limited · 2001
- LNG with ethane enrichment and reinjection gas as refrigerant46US 6,125,653 ATexaco Inc. · 2000
- Method for liquefying a stream rich in hydrocarbons46US 6,253,574 B1Den Norske Stats Oljeselskap A.S. · 2001