F25B 41/345
By solenoids
Official title: by solenoids
F25B41/345 (By solenoids) appears on 171 US grants and 110 published applications in this corpus.
Search patents in F25B- Granted patents
- 171
- Published applications
- 110
- Assignees
- 91
- Inventors
- 358
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 13 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 7 | 0 |
| 2002 | 4 | 2 |
| 2003 | 5 | 5 |
| 2004 | 2 | 8 |
| 2005 | 4 | 8 |
| 2006 | 10 | 6 |
| 2007 | 2 | 2 |
| 2008 | 1 | 6 |
| 2009 | 1 | 3 |
| 2010 | 2 | 5 |
| 2011 | 2 | 6 |
| 2012 | 5 | 2 |
| 2013 | 4 | 3 |
| 2014 | 2 | 0 |
| 2015 | 3 | 5 |
| 2016 | 3 | 5 |
| 2017 | 2 | 3 |
| 2018 | 2 | 4 |
| 2019 | 5 | 4 |
| 2020 | 4 | 2 |
| 2021 | 2 | 8 |
| 2022 | 2 | 9 |
| 2023 | 6 | 5 |
| 2024 | 7 | 4 |
| 2025 | 6 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electric expansion valve and refrigeration cycle device25 Aug 2026US 12,716,627 B2Denso Corporation
- Electronic expansion valve25 Nov 2025US 12,480,582 B2Zhejiang Dunan Artificial Environment Co., Ltd.
- Valve26 Aug 2025US 12,398,822 B2Eagle Industry Co., Ltd.
- Electromagnetic proportional valve and system having a proportional valve15 Jul 2025US 12,358,342 B2ECO Holding 1 GmbH
- Expansion valve coil assembly17 Jun 2025US 12,334,257 B2Zhejiang Dunan Artificial Environment Co., Ltd.
- Electromagnetic valve26 Feb 2026US 2026/0055823 A1Fujikoki Corporation
- Electric expansion valve and refrigeration cycle device24 Jul 2025US 2025/0237417 A1Denso Corporation
- Flow Adjustment Assembly and Electronic Expansion Valve15 May 2025US 2025/0155028 A1Zhejiang Dunan Artificial Environment Co., Ltd.
- Cold Exchnage System20 Mar 2025US 2025/0093083 A1Siemens Schweiz AG
- Framework, Framework Assembly, Coil Assembly, and Electronic Expansion Valve13 Feb 2025US 2025/0052334 A1Zhejiang Dunan Artificial Environment Co., Ltd.
Most cited
By later US patents
- Refrigeration control system112US 4,112,703 ABorg-Warner Corporation · 1978
- System for controlling flow rate of refrigerant104US 4,745,767 ASanyo Electric Co., Ltd. · 1988
- Refrigerant level control in a refrigeration system98US 5,655,379 AGeneral Electric Company · 1997
- Refrigerant flow rate control based on liquid level in simple vapor compression refrigeration cycles97US 5,435,145 AGeneral Electric Company · 1995
- Control device for refrigeration cycle89US 4,499,739 AMitsubishi Denki Kabushiki Kaisha · 1985