F25B 2345/001
Charging refrigerant to a cycle
F25B2345/001 (Charging refrigerant to a cycle) appears on 359 US grants and 328 published applications in this corpus.
Search patents in F25B- Granted patents
- 359
- Published applications
- 328
- Assignees
- 186
- Inventors
- 617
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 9 | 0 |
| 1992 | 7 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 10 | 0 |
| 1999 | 8 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 3 |
| 2002 | 10 | 5 |
| 2003 | 3 | 4 |
| 2004 | 4 | 4 |
| 2005 | 6 | 11 |
| 2006 | 5 | 18 |
| 2007 | 9 | 6 |
| 2008 | 3 | 6 |
| 2009 | 5 | 12 |
| 2010 | 6 | 8 |
| 2011 | 8 | 13 |
| 2012 | 8 | 14 |
| 2013 | 5 | 17 |
| 2014 | 10 | 15 |
| 2015 | 11 | 18 |
| 2016 | 16 | 7 |
| 2017 | 12 | 23 |
| 2018 | 10 | 13 |
| 2019 | 16 | 22 |
| 2020 | 12 | 15 |
| 2021 | 15 | 18 |
| 2022 | 16 | 17 |
| 2023 | 14 | 11 |
| 2024 | 14 | 13 |
| 2025 | 15 | 19 |
| 2026 | 6 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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.
- Movable coolant processing apparatus21 Jul 2026US 12,687,331 B2Tokyo Electron Limited
- Method to charge multiple refrigerants with desired concentrations14 Apr 2026US 12,601,529 B2Copeland Corporation
- Method of forming refrigerant systems24 Feb 2026US 12,560,362 B2Solstice Advanced Materials US, Inc.
- 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.
- Service tools and systems for processing fluid through a fluid access port9 Jul 2026US 2026/0194274 A1FasTest, Inc.
- Server device, refrigeration cycle system, and management method9 Jul 2026US 2026/0194276 A1Daikin Industries, Ltd.
- Hvac line set analyzing and charging system2 Jul 2026US 2026/0185754 A1MalHack Tool Design, LLC
Most cited
By later US patents
- Automotive air-conditioning servicing system and method123US 4,755,957 AK-White Tools, Incorporated · 1988
- Refrigerant recovery and recharging system102US 4,441,330 ARobinair Manufacturing Corporation · 1984
- Environmental protection refrigeration disposal and charging system95US 4,261,178 ARobinair Manufacturing Corporation · 1981
- Automatic refrigerant recovery, purification and recharge apparatus94US 4,285,206 ADraf Tool Co., Inc. · 1981
- Refrigerant recovery, purification and recharging system94US 4,805,416 AKent-Moore Corporation · 1989