F25B 9/12
Compression machines, plants or systems, in which the refrigerant is air or
Official title: using 3He-4He dilution
F25B9/12 (Compression machines, plants or systems, in which the refrigerant is air or) appears on 69 US grants and 89 published applications in this corpus.
Search patents in F25B- Granted patents
- 69
- Published applications
- 89
- Assignees
- 41
- Inventors
- 151
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 3 |
| 2015 | 1 | 2 |
| 2016 | 0 | 1 |
| 2017 | 2 | 2 |
| 2018 | 1 | 2 |
| 2019 | 1 | 2 |
| 2020 | 2 | 4 |
| 2021 | 4 | 4 |
| 2022 | 2 | 4 |
| 2023 | 4 | 12 |
| 2024 | 8 | 12 |
| 2025 | 10 | 10 |
| 2026 | 10 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device and method for providing a thermally conductive coupling1 Sep 2026US 12,723,799 B2Bluefors Oy
- Modular cryogenic cooling system28 Jul 2026US 12,693,064 B2Bluefors Oy
- Systems and methods for cryogenic refrigeration7 Jul 2026US 12,673,274 B21372934 B. C. Ltd.
- Cryogenic cooling system and an insert therefor26 May 2026US 12,638,132 B2Oxford NanoScience Limited
- Heat exchanger for cryogenic cooling apparatus19 May 2026US 12,631,375 B2Oxford NanoScience Limited
- Cooling System for a Dilution Refrigerator System8 Oct 2026US 2026/0309373 A1Orange Quantum Systems Holding B.V.
- Cryogenic cooling system1 Oct 2026US 2026/0298507 A1Oxford NanoScience Limited
- Systems and methods for removing contaminants from the fluid circulation system of a dilution refrigerator24 Sep 2026US 2026/0287228 A1Anyon Systems Inc.
- Cryogenic cooling system and an insert therefor17 Sep 2026US 2026/0276149 A1Oxford NanoScience Limited
- Cryogenic cooling system with active heat exchanger3 Sep 2026US 2026/0258984 A1Bluefors Oy
Most cited
By later US patents
- Systems, methods, and apparatus for cryogenic refrigeration29US 9,134,047 B2D-Wave Systems Inc. · 2015
- Systems, methods, and apparatus for cryogenic refrigeration25US 8,464,542 B2D-Wave Systems Inc. · 2013
- Dilution cryostat18US 4,672,823 ACentre National De La Recherche Scientifique · 1987
- Method for cooling an object with the aid of superfluid helium (He II) and apparatus for implementing the method18US 4,713,942 AKernforschungszentrum Karlsruhe GmbH · 1987
- Superfluid thermodynamic cycle refrigerator17US 5,172,554 AThe United States of America as represented by the United States Department of Energy · 1992