F25J 3/04224
Cores associated with a liquefaction or refrigeration cycle
Official title: {Cores associated with a liquefaction or refrigeration cycle}
F25J3/04224 (Cores associated with a liquefaction or refrigeration cycle) appears on 72 US grants and 52 published applications in this corpus.
Search patents in F25J- Granted patents
- 72
- Published applications
- 52
- Assignees
- 28
- Inventors
- 132
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 3 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 3 |
| 2010 | 1 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 3 |
| 2015 | 0 | 2 |
| 2016 | 1 | 2 |
| 2017 | 2 | 6 |
| 2018 | 2 | 3 |
| 2019 | 1 | 0 |
| 2020 | 2 | 2 |
| 2021 | 2 | 5 |
| 2022 | 1 | 6 |
| 2023 | 2 | 3 |
| 2024 | 3 | 2 |
| 2025 | 2 | 3 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Refrigeration-integrated hydrocarbon collection system and method of operation25 Aug 2026US 12,716,649 B2Oxy Low Carbon Ventures, LLC
- System for storing and producing energy to stabilize the power network26 May 2026US 12,638,234 B2Saipem S.P.A.
- Oxygen liquefier design phasing26 May 2026US 12,638,235 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Apparatus and process for liquefying gases9 Dec 2025US 12,492,864 B1
- Method to convert excess liquid oxygen into liquid nitrogen20 May 2025US 12,305,916 B2Airgas, Inc.
- Process and apparatus for producing argon by cryogenic air separation23 Jul 2026US 2026/0210624 A1
- Process for remote lox/lin production by hpair turbo expansion2 Oct 2025US 2025/0305764 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Process and plant for providing a nitrogen product, an oxygen product and a hydrogen product28 Aug 2025US 2025/0271208 A1Linde Aktiengesellschaft
- Air separation system and air separation method2 Jan 2025US 2025/0003679 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Liquefactor and method for liquefying a gas19 Sep 2024US 2024/0310114 A1L' Air Liquide, Societe Anonyme pour I' Etude et I'Exploitation des Procedes Georges Claude
Most cited
By later US patents
- Combined air separation natural gas liquefaction plant104US 7,143,606 B2L'Air Liquide-Societe Anonyme a'Directoire et Conseil de Surveillance pour l'Etide et l'Exploitation des Procedes Georges Claude · 2006
- Liquefied natural gas refrigeration transfer to a cryogenics air separation unit using high presure nitrogen stream67US 5,137,558 AAir Products and Chemicals, Inc. · 1992
- Incorporated cascade cooling cycle for liquefying a gas by regasifying liquefied natural gas48US 4,054,433 AL Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude · 1977
- Production of liquid nitrogen using liquefied natural gas as sole refrigerant48US 5,139,547 AAir Products and Chemicals, Inc. · 1992
- Natural gas letdown liquefaction system48US 6,131,407 A2000