F25B 41/38
Specially adapted for reversible cycles
Official title: specially adapted for reversible cycles, e.g. bidirectional expansion restrictors
F25B41/38 (Specially adapted for reversible cycles) appears on 130 US grants and 80 published applications in this corpus.
Search patents in F25B- Granted patents
- 130
- Published applications
- 80
- Assignees
- 59
- Inventors
- 228
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 9 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 4 |
| 2003 | 5 | 3 |
| 2004 | 4 | 1 |
| 2005 | 1 | 4 |
| 2006 | 4 | 4 |
| 2007 | 1 | 4 |
| 2008 | 6 | 4 |
| 2009 | 0 | 3 |
| 2010 | 4 | 3 |
| 2011 | 1 | 2 |
| 2012 | 4 | 1 |
| 2013 | 0 | 3 |
| 2014 | 2 | 2 |
| 2015 | 2 | 12 |
| 2016 | 3 | 7 |
| 2017 | 5 | 5 |
| 2018 | 3 | 3 |
| 2019 | 9 | 0 |
| 2020 | 1 | 3 |
| 2021 | 2 | 3 |
| 2022 | 5 | 2 |
| 2023 | 2 | 4 |
| 2024 | 1 | 2 |
| 2025 | 1 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device for regulating a through-flow and expanding of a fluid in a fluid circuit10 Feb 2026US 12,545,075 B2Hanon Systems
- Distributor systems for heat exchangers8 Apr 2025US 12,270,583 B2Rheem Manufacturing Company
- Electronic expansion valve14 May 2024US 11,982,477 B2Zhejiang Sanhua Intelligent Controls Co., Ltd.
- Thermal management systems22 Aug 2023US 11,732,941 B1Booz Allen Hamilton Inc.
- Thermal management systems11 Jul 2023US 11,698,210 B1Booz Allen Hamilton Inc.
- Valve device for operation with a refrigerant3 Sep 2026US 2026/0258990 A1Hanon Systems
- Bidirectional throttle valve, first air conditioning system and second air conditioning system29 Aug 2024US 2024/0288205 A1Zhejiang Dunan Artificial Environment Co., Ltd.
- Device for regulating a through-flow and expanding of a fluid in a fluid circuit29 Feb 2024US 2024/0066945 A1Hanon Systems
- Flow regulating valve16 Nov 2023US 2023/0366471 A1Zhejiang Dunan Artificial Environment Co., Ltd.
- Bulbless expansion valve with integrated bypass check valve14 Sep 2023US 2023/0288109 A1Parker-Hannifin Corporation
Most cited
By later US patents
- Geothermal heat pump system116US 5,758,514 AEnvirotherm Heating & Cooling Systems, Inc. · 1998
- Electronic expansion valve48US 4,593,881 ASystem Homes Company, Ltd. · 1986
- Refrigerant expansion device47US 4,633,681 A1987
- Thermal expansion valve with internal by-pass and check valve41US 5,251,459 AEmerson Electric Co. · 1993
- Movable expansion valve34US 3,992,898 ACarrier Corporation · 1976