F25B 41/335
Via diaphragms
Official title: via diaphragms
F25B41/335 (Via diaphragms) appears on 315 US grants and 205 published applications in this corpus.
Search patents in F25B- Granted patents
- 315
- Published applications
- 205
- Assignees
- 97
- Inventors
- 488
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 7 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 4 | 0 |
| 1993 | 8 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 11 | 0 |
| 1999 | 14 | 0 |
| 2000 | 22 | 0 |
| 2001 | 21 | 11 |
| 2002 | 28 | 20 |
| 2003 | 18 | 8 |
| 2004 | 6 | 20 |
| 2005 | 14 | 9 |
| 2006 | 3 | 8 |
| 2007 | 8 | 16 |
| 2008 | 5 | 9 |
| 2009 | 3 | 6 |
| 2010 | 4 | 10 |
| 2011 | 4 | 2 |
| 2012 | 4 | 5 |
| 2013 | 1 | 6 |
| 2014 | 3 | 2 |
| 2015 | 5 | 10 |
| 2016 | 2 | 16 |
| 2017 | 12 | 4 |
| 2018 | 11 | 5 |
| 2019 | 9 | 9 |
| 2020 | 4 | 8 |
| 2021 | 7 | 5 |
| 2022 | 2 | 3 |
| 2023 | 1 | 8 |
| 2024 | 4 | 4 |
| 2025 | 7 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Thermal conditioning circuit22 Sep 2026US 12,741,506 B2Valeo Systemes Thermiques
- 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
- Combination valve unit and vehicle heat pump system1 Jul 2025US 12,345,452 B2Hanon Systems
- Attachment structure for expansion valves10 Jun 2025US 12,325,286 B2Denso 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
- Ball seal for thermal sensor assembly of thermostatic expansion valve26 Dec 2024US 2024/0426392 A1Parker-Hannifin Corporation
- Fluid management device capable of reducing harmful heat loss29 Aug 2024US 2024/0286459 A1Zhejiang Sanhua Intelligent Controls Co., Ltd.
- Thermal conditioning circuit16 May 2024US 2024/0157762 A1Valeo Systemes Thermiques
- Parallel flow expansion for pressure and superheat control28 Mar 2024US 2024/0102706 A1Therma-Stor LLC
Most cited
By later US patents
- Apparatus for and method of automatically adjusting the superheat setting of a thermostatic expansion valve93US 4,467,613 AEmerson Electric Co. · 1984
- 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
- Flange mounted thermostatic expansion valve56US 4,468,054 AThe Singer Company · 1984
- Vibration damping device for thermostatic expansion valves42US 4,542,852 AThe Singer Company · 1985