F25B 9/10
Compression machines, plants or systems, in which the refrigerant is air or
Official title: with several cooling stages
F25B9/10 (Compression machines, plants or systems, in which the refrigerant is air or) appears on 327 US grants and 407 published applications in this corpus.
Search patents in F25B- Granted patents
- 327
- Published applications
- 407
- Assignees
- 181
- Inventors
- 717
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 6 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 12 | 1 |
| 2002 | 10 | 4 |
| 2003 | 5 | 2 |
| 2004 | 3 | 10 |
| 2005 | 2 | 12 |
| 2006 | 8 | 17 |
| 2007 | 15 | 18 |
| 2008 | 9 | 13 |
| 2009 | 11 | 8 |
| 2010 | 2 | 9 |
| 2011 | 1 | 9 |
| 2012 | 2 | 7 |
| 2013 | 11 | 12 |
| 2014 | 4 | 13 |
| 2015 | 10 | 21 |
| 2016 | 12 | 7 |
| 2017 | 11 | 28 |
| 2018 | 10 | 11 |
| 2019 | 18 | 15 |
| 2020 | 16 | 27 |
| 2021 | 15 | 19 |
| 2022 | 24 | 23 |
| 2023 | 22 | 26 |
| 2024 | 12 | 31 |
| 2025 | 24 | 34 |
| 2026 | 13 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cryogenic cooling device6 Oct 2026US 12,753,953 B2Sumitomo Heavy Industries, Ltd.
- Systems and methods for cryogenic refrigeration7 Jul 2026US 12,673,274 B21372934 B. C. Ltd.
- Hybrid regenerator for cryocooler9 Jun 2026US 12,650,249 B1Boston Cryogenics LLC
- 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
- Cryopump8 Oct 2026US 2026/0309139 A1Sumitomo Heavy Industries, Ltd.
- Cryogenic cooling system1 Oct 2026US 2026/0298507 A1Oxford NanoScience Limited
- Cryogenic cooling system and an insert therefor17 Sep 2026US 2026/0276149 A1Oxford NanoScience Limited
- Refrigeration system and method3 Sep 2026US 2026/0258982 A1Mbgsholdings Pty Ltd
- Cryogenic cooling system with active heat exchanger3 Sep 2026US 2026/0258984 A1Bluefors Oy
Most cited
By later US patents
- Cryogenic cooling system with precooling stage58US 4,829,785 AThe Boeing Company · 1989
- NMR measuring device having a cooled probe head43US 5,889,456 ASpectrospin AG · 1999
- Pulse tube refrigerator39US 5,412,952 AKabushiki Kaisha Toshiba · 1995
- Pulse-tube cryorefrigeration apparatus using an integrated buffer volume38US 6,378,312 B1Cryomech, Inc. · 2002
- Superconducting magnet device36US 4,543,794 AKabushiki Kaisha Toshiba · 1985