F25J 1/0217
As at least a three level refrigeration cascade with at least one
Official title: {as at least a three level refrigeration cascade with at least one MCR cycle}
F25J1/0217 (As at least a three level refrigeration cascade with at least one) appears on 48 US grants and 81 published applications in this corpus.
Search patents in F25J- Granted patents
- 48
- Published applications
- 81
- Assignees
- 36
- Inventors
- 191
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 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 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 3 |
| 2006 | 2 | 2 |
| 2007 | 1 | 2 |
| 2008 | 1 | 4 |
| 2009 | 2 | 4 |
| 2010 | 0 | 6 |
| 2011 | 1 | 4 |
| 2012 | 0 | 0 |
| 2013 | 3 | 5 |
| 2014 | 2 | 2 |
| 2015 | 0 | 3 |
| 2016 | 4 | 3 |
| 2017 | 2 | 5 |
| 2018 | 0 | 8 |
| 2019 | 2 | 7 |
| 2020 | 6 | 3 |
| 2021 | 1 | 1 |
| 2022 | 2 | 7 |
| 2023 | 4 | 1 |
| 2024 | 4 | 5 |
| 2025 | 0 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and processes for stationary and mobile natural gas liquefaction26 May 2026US 12,638,237 B2NuBlu Innovations, LLC
- Mixed refrigerant hydrogen liquefaction device and method of using same10 Dec 2024US 12,163,736 B2Hangzhou Oxygen Plant Group Co., Ltd.
- Mixed refrigerant system and method1 Oct 2024US 12,104,849 B2Chart Energy & Chemicals, Inc.
- Natural gas liquefying apparatus13 Aug 2024US 12,061,044 B2Jgc Corporation
- Natural gas liquefying apparatus27 Feb 2024US 11,913,717 B2Jgc Corporation
- Cascade refrigeration natural gas liquefaction system and process27 Aug 2026US 2026/0251385 A1Hangzhou Zhongtai Cryogenic Technology Corporation
- Method for liquefying natural gas9 Jul 2026US 2026/0194294 A1Publichnoe Aktsionernoe Obshchestvo "NOVATEK"
- Dual-mixed refrigerant precooling process18 Sep 2025US 2025/0290691 A1Qatar Foundation for Education, Science and Community Development
- Hydrogen cooling31 Jul 2025US 2025/0244075 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
Most cited
By later US patents
- Integrated high pressure NGL recovery in the production of liquefied natural gas94US 6,662,589 B1Air Products and Chemicals, Inc. · 2003
- Hybrid cycle for the production of liquefied natural gas77US 6,308,531 B1Air Products and Chemicals, Inc. · 2001
- Method for liquefying a stream rich in hydrocarbons46US 6,253,574 B1Den Norske Stats Oljeselskap A.S. · 2001
- Dual stage nitrogen rejection from liquefied natural gas39US 7,520,143 B2Air Products and Chemicals, Inc. · 2009
- Natural gas liquefaction process34US 7,386,996 B2Den Norske Stats Oljeselskap A.S. · 2008