F25J 1/025
Details related to the refrigerant production or treatment
Official title: {Details related to the refrigerant production or treatment, e.g. make-up supply from feed gas itself}
F25J1/025 (Details related to the refrigerant production or treatment) appears on 92 US grants and 113 published applications in this corpus.
Search patents in F25J- Granted patents
- 92
- Published applications
- 113
- Assignees
- 57
- Inventors
- 251
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 2 |
| 2002 | 1 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 4 |
| 2009 | 1 | 4 |
| 2010 | 0 | 7 |
| 2011 | 2 | 2 |
| 2012 | 1 | 3 |
| 2013 | 1 | 6 |
| 2014 | 0 | 6 |
| 2015 | 4 | 2 |
| 2016 | 2 | 7 |
| 2017 | 6 | 6 |
| 2018 | 3 | 9 |
| 2019 | 6 | 8 |
| 2020 | 7 | 10 |
| 2021 | 3 | 5 |
| 2022 | 5 | 2 |
| 2023 | 7 | 11 |
| 2024 | 5 | 5 |
| 2025 | 2 | 8 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and system for producing a liquefied natural gas product18 Aug 2026US 12,710,225 B2Linde Aktiengesellschaft
- Installation and method for liquefying a cryogenic fluid18 Aug 2026US 12,710,227 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Liquefied natural gas production facility on gravity-based structures16 Jun 2026US 12,656,058 B2Publichnoe Aktsionernoe Obshchestvo "NOVATEK"
- Liquified natural gas processing cold box with internal refrigerant storage3 Feb 2026US 12,540,773 B2
- Refrigerant cycle pressure control system for reliquefaction system for ship20 Jan 2026US 12,529,517 B2Hanwha Ocean Co., Ltd.
- Liquified natural gas processing cold box with internal refrigerant storage30 Apr 2026US 2026/0118052 A1
- Liquefier control for transient heat loads29 Jan 2026US 2026/0029193 A1Air Liquide Large Industries U.S. LP
- Systems and methods for lng refrigeration and liquefaction14 Aug 2025US 2025/0257939 A1Fluor Technologies Corporation
- Facility and method for hydrogen refrigeration7 Aug 2025US 2025/0251187 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Leakage detection system of reliquefaction system for ship24 Jul 2025US 2025/0237430 A1Hanwha Ocean Co., Ltd.
Most cited
By later US patents
- Process for liquefaction of natural gas137US 6,023,942 AExxon Production Research Company · 2000
- Multi-component refrigeration process for liquefaction of natural gas100US 5,950,453 AExxon Production Research Company · 1999
- Natural gas liquefaction pretreatment process63US 5,325,673 AThe M. W. Kellogg Company · 1994
- Single mixed refrigerant, closed loop process for liquefying natural gas60US 4,033,735 AJ. F. Pritchard and Company · 1977
- Cascade refrigeration process for liquefaction of natural gas51US 6,016,665 AExxon Production Research Company · 2000