F25B 41/33
With the valve member being actuated by the fluid pressure
Official title: with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant
F25B41/33 (With the valve member being actuated by the fluid pressure) appears on 383 US grants and 263 published applications in this corpus.
Search patents in F25B- Granted patents
- 383
- Published applications
- 263
- Assignees
- 122
- Inventors
- 613
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 7 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 7 | 0 |
| 1992 | 5 | 0 |
| 1993 | 9 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 8 | 0 |
| 1997 | 7 | 0 |
| 1998 | 11 | 0 |
| 1999 | 15 | 0 |
| 2000 | 23 | 0 |
| 2001 | 26 | 11 |
| 2002 | 32 | 20 |
| 2003 | 19 | 10 |
| 2004 | 7 | 20 |
| 2005 | 14 | 13 |
| 2006 | 3 | 10 |
| 2007 | 10 | 20 |
| 2008 | 5 | 11 |
| 2009 | 4 | 7 |
| 2010 | 6 | 12 |
| 2011 | 5 | 5 |
| 2012 | 6 | 6 |
| 2013 | 1 | 7 |
| 2014 | 4 | 6 |
| 2015 | 8 | 13 |
| 2016 | 6 | 20 |
| 2017 | 12 | 9 |
| 2018 | 16 | 11 |
| 2019 | 16 | 10 |
| 2020 | 5 | 10 |
| 2021 | 7 | 10 |
| 2022 | 7 | 4 |
| 2023 | 2 | 9 |
| 2024 | 6 | 6 |
| 2025 | 8 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Thermal conditioning circuit22 Sep 2026US 12,741,506 B2Valeo Systemes Thermiques
- Air conditioning system14 Jul 2026US 12,680,742 B2Guangdong Meizhi Precision-Manufacturing Co., Ltd.
- Refrigeration system28 Apr 2026US 12,613,048 B2Carrier Corporation
- Bulbless thermostatic expansion valve containing a thermal separation slot2 Dec 2025US 12,487,014 B1Parker-Hannifin Corporation
- Ball seal for thermal sensor assembly of thermostatic expansion valve4 Nov 2025US 12,460,844 B2Parker-Hannifin Corporation
- Heat pump and fan coil unit with thermal energy storage and thermal expansion valve in flow conduits extending therebetween18 Jun 2026US 2026/0168707 A1Carrier Corporation
- Heat source unit and refrigeration apparatus26 Jun 2025US 2025/0207830 A1Daikin Industries, Ltd.
- Cooling System And Laboratory Instrument Having A Cooling System12 Jun 2025US 2025/0189176 A1
- Ball seal for thermal sensor assembly of thermostatic expansion valve26 Dec 2024US 2024/0426392 A1Parker-Hannifin Corporation
- Air conditioning system21 Nov 2024US 2024/0384904 A1Guangdong Meizhi Precision-Manufacturing Co., Ltd.
Most cited
By later US patents
- Energy efficient air conditioning system utilizing a variable speed compressor and integrally-related expansion valves98US 5,177,972 ALiebert Corporation · 1993
- Apparatus for and method of automatically adjusting the superheat setting of a thermostatic expansion valve93US 4,467,613 AEmerson Electric Co. · 1984
- Refrigeration system with electrically controlled expansion valve89US 5,546,757 AGeneral Electric Company · 1996
- Low refrigerant charge detection using thermal expansion valve stroke measurement77US 5,243,829 AGeneral Electric Company · 1993
- Superheat controller59US 4,333,317 AGeneral Electric Company · 1982