F25J 1/0209
As at least a three level refrigeration cascade
Official title: {as at least a three level refrigeration cascade}
F25J1/0209 (As at least a three level refrigeration cascade) appears on 78 US grants and 108 published applications in this corpus.
Search patents in F25J- Granted patents
- 78
- Published applications
- 108
- Assignees
- 31
- Inventors
- 194
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 3 | 1 |
| 2004 | 4 | 2 |
| 2005 | 1 | 7 |
| 2006 | 1 | 4 |
| 2007 | 5 | 6 |
| 2008 | 3 | 10 |
| 2009 | 2 | 7 |
| 2010 | 0 | 5 |
| 2011 | 2 | 3 |
| 2012 | 0 | 5 |
| 2013 | 4 | 3 |
| 2014 | 1 | 4 |
| 2015 | 1 | 6 |
| 2016 | 4 | 6 |
| 2017 | 8 | 3 |
| 2018 | 5 | 5 |
| 2019 | 1 | 3 |
| 2020 | 2 | 2 |
| 2021 | 2 | 1 |
| 2022 | 3 | 4 |
| 2023 | 1 | 9 |
| 2024 | 3 | 5 |
| 2025 | 1 | 3 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cryogenic gas cooling system and method16 Jun 2026US 12,656,057 B2Chart Energy & Chemicals, Inc.
- Liquified natural gas processing cold box with internal refrigerant storage3 Feb 2026US 12,540,773 B2
- Systems and methods for removing nitrogen during liquefaction of natural gas28 Oct 2025US 12,455,114 B2ConocoPhillips Company
- Two-stage heavies removal in lng processing8 Oct 2024US 12,111,101 B2ConocoPhillips Company
- Solvent injection and recovery in a LNG plant2 Jul 2024US 12,025,371 B2ConocoPhillips Company
- Nitrogen management in an lng plant6 Aug 2026US 2026/0227121 A1ConocoPhillips Company
- Liquified natural gas processing cold box with internal refrigerant storage30 Apr 2026US 2026/0118052 A1
- Method of Hydrogen Liquefaction Using Optimized Claude Refrigeration Cycles2 Apr 2026US 2026/0092734 A1Evergreen Cryogenics Inc.
- Systems and methods for removing nitrogen during liquefaction of natural gas5 Feb 2026US 2026/0036367 A1ConocoPhillips Company
- Refrigerant accumulator9 Oct 2025US 2025/0314407 A1ConocoPhillips Company
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 processing of natural gas into liquid products87US 6,743,829 B2BP Corporation North America Inc. · 2004
- Integrated processing of natural gas into liquid products84US 7,168,265 B2BP Corporation North America Inc. · 2007
- Natural gas liquefaction with improved nitrogen removal79US 6,631,626 B1ConocoPhillips Company · 2003
- Efficiency improvement of open-cycle cascaded refrigeration process64US 5,669,234 APhillips Petroleum Company · 1997