F25B 9/002
Compression machines, plants or systems, in which the refrigerant is air or
Official title: {characterised by the refrigerant}
F25B9/002 (Compression machines, plants or systems, in which the refrigerant is air or) appears on 1,910 US grants and 2,139 published applications in this corpus.
Search patents in F25B- Granted patents
- 1,910
- Published applications
- 2,139
- Assignees
- 718
- Inventors
- 3,373
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 9 | 0 |
| 1978 | 5 | 0 |
| 1979 | 6 | 0 |
| 1980 | 9 | 0 |
| 1981 | 6 | 0 |
| 1982 | 8 | 0 |
| 1983 | 7 | 0 |
| 1984 | 10 | 0 |
| 1985 | 11 | 0 |
| 1986 | 10 | 0 |
| 1987 | 5 | 0 |
| 1988 | 12 | 0 |
| 1989 | 8 | 0 |
| 1990 | 9 | 0 |
| 1991 | 14 | 0 |
| 1992 | 11 | 0 |
| 1993 | 17 | 0 |
| 1994 | 17 | 0 |
| 1995 | 8 | 0 |
| 1996 | 25 | 0 |
| 1997 | 29 | 0 |
| 1998 | 31 | 0 |
| 1999 | 30 | 0 |
| 2000 | 43 | 0 |
| 2001 | 55 | 21 |
| 2002 | 74 | 51 |
| 2003 | 80 | 86 |
| 2004 | 56 | 108 |
| 2005 | 76 | 107 |
| 2006 | 71 | 87 |
| 2007 | 52 | 76 |
| 2008 | 34 | 64 |
| 2009 | 27 | 71 |
| 2010 | 37 | 78 |
| 2011 | 29 | 61 |
| 2012 | 38 | 42 |
| 2013 | 33 | 54 |
| 2014 | 29 | 53 |
| 2015 | 35 | 68 |
| 2016 | 44 | 68 |
| 2017 | 51 | 98 |
| 2018 | 77 | 96 |
| 2019 | 87 | 98 |
| 2020 | 86 | 112 |
| 2021 | 70 | 112 |
| 2022 | 89 | 110 |
| 2023 | 85 | 91 |
| 2024 | 87 | 128 |
| 2025 | 100 | 119 |
| 2026 | 62 | 80 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cooling system of a cold platform at cryogenic temperature and method thereof6 Oct 2026US 12,753,951 B2
- Refrigerant circulation system29 Sep 2026US 12,747,898 B2Mazda Motor Corporation
- CO2 refrigeration system with superheat control22 Sep 2026US 12,742,574 B2Hill Phoenix, Inc.
- Detecting contamination of a cryogenic refrigerant in a cryogenic refrigeration system22 Sep 2026US 12,742,577 B2Edwards Vacuum LLC
- Systems, controllers, and methods for controlling a CO2 refrigeration system15 Sep 2026US 12,736,262 B2Copeland Corporation
- Ambient temperature thermal adapter for supercritical carbon dioxide power cycle8 Oct 2026US 2026/0309058 A1TerraPower, LLC
- Immersion cooling system for integrated circuit1 Oct 2026US 2026/0304696 A1Taiwan Semiconductor Manufacturing Company.Ltd
- Heat reclaim system24 Sep 2026US 2026/0287216 A1Hill Phoenix, Inc.
- Indirect thermal management system for new energy vehicles24 Sep 2026US 2026/0287222 A1
- Heating device for cryogenic refrigerator17 Sep 2026US 2026/0276248 A1Ulvac Cryogenics Incorporated
Most cited
By later US patents
- Portable device for preserving organs by static storage or perfusion282US 5,586,438 ALRT, Inc. · 1996
- Compressed air energy storage method and system274US 5,537,822 AThe Israel Electric Corporation Ltd. · 1996
- Regenerative condensing cycle163US 5,461,882 AUnited Technologies Corporation · 1995
- Integrated air conditioning and power unit147US 5,899,085 AMcDonnell Douglas Corporation · 1999
- Cryosurgical system and method146US 6,306,129 B1FemRx, Inc. · 2001