F25B 2345/00
Details for charging or discharging refrigerants
Official title: Details for charging or discharging refrigerants; Service stations therefor
F25B2345/00 (Details for charging or discharging refrigerants) appears on 872 US grants and 647 published applications in this corpus.
Search patents in F25B- Granted patents
- 872
- Published applications
- 647
- Assignees
- 339
- Inventors
- 1,340
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 6 | 0 |
| 1983 | 1 | 0 |
| 1984 | 9 | 0 |
| 1985 | 8 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 17 | 0 |
| 1990 | 16 | 0 |
| 1991 | 33 | 0 |
| 1992 | 37 | 0 |
| 1993 | 43 | 0 |
| 1994 | 45 | 0 |
| 1995 | 21 | 0 |
| 1996 | 24 | 0 |
| 1997 | 18 | 0 |
| 1998 | 19 | 0 |
| 1999 | 13 | 0 |
| 2000 | 17 | 0 |
| 2001 | 22 | 3 |
| 2002 | 21 | 11 |
| 2003 | 10 | 10 |
| 2004 | 12 | 15 |
| 2005 | 12 | 25 |
| 2006 | 19 | 27 |
| 2007 | 13 | 11 |
| 2008 | 7 | 14 |
| 2009 | 7 | 22 |
| 2010 | 10 | 16 |
| 2011 | 12 | 20 |
| 2012 | 11 | 26 |
| 2013 | 10 | 30 |
| 2014 | 18 | 26 |
| 2015 | 23 | 33 |
| 2016 | 28 | 22 |
| 2017 | 24 | 33 |
| 2018 | 27 | 24 |
| 2019 | 28 | 41 |
| 2020 | 28 | 27 |
| 2021 | 25 | 38 |
| 2022 | 28 | 45 |
| 2023 | 30 | 27 |
| 2024 | 36 | 34 |
| 2025 | 36 | 37 |
| 2026 | 14 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F25B 2345/002Collecting refrigerant from a cycleIndexing code404
- F25B 2345/001Charging refrigerant to a cycleIndexing code359
- F25B 2345/006Details for charging or discharging refrigerants: characterised by charging or discharging valvesIndexing code300
- F25B 2345/003Control issues for charging or collecting refrigerant to or from a cycleIndexing code166
- F25B 2345/005Service stations thereforIndexing code130
- F25B 2345/007Details for charging or discharging refrigerants: characterised by the weighing of refrigerantIndexing code69
- F25B 2345/004Details for charging or discharging refrigerants: with several tanks to collect orIndexing code50
Recent patents
- Systems and methods for Refrigerant unit life cycle management22 Sep 2026US 12,742,564 B2Effecterra, Inc.
- Coolant refresh device for coolant distribution unit8 Sep 2026US 12,729,888 B2Cisco Technology, Inc.
- Heat source unit and refrigerant handling method1 Sep 2026US 12,723,791 B2Daikin Industries, Ltd.
- Refrigerant handling device and refrigerant handling method1 Sep 2026US 12,723,792 B2Daikin Industries, Ltd.
- Movable coolant processing apparatus21 Jul 2026US 12,687,331 B2Tokyo Electron Limited
- Method and apparatus for handling refrigerant17 Sep 2026US 2026/0276268 A1SK Innovation Co., Ltd.
- Method and apparatus for handling refrigerant17 Sep 2026US 2026/0276269 A1SK Innovation Co., Ltd.
- Method and apparatus for handling refrigerant17 Sep 2026US 2026/0276270 A1SK Innovation Co., Ltd.
- System including recovery pump and vacuum pump3 Sep 2026US 2026/0258801 A1Milwaukee Electric Tool Corporation
- System and method for charging a phase change material (PCM) tank for pressure control at a flash tank27 Aug 2026US 2026/0251366 A1Lennox Industries Inc.
Most cited
By later US patents
- System and method for diagnosing the operation of air conditioner systems131US 4,967,567 AMurray, Inc. · 1990
- Automotive air-conditioning servicing system and method123US 4,755,957 AK-White Tools, Incorporated · 1988
- Refrigerant recovery system109US 5,875,638 ACopeland Corporation · 1999
- Refrigerant recovery and purification system106US 4,476,688 A1984
- Refrigerant recovery and recharging system102US 4,441,330 ARobinair Manufacturing Corporation · 1984