F25B 41/34
With the valve member being actuated by electric means
Official title: with the valve member being actuated by electric means, e.g. by piezoelectric actuators
F25B41/34 (With the valve member being actuated by electric means) appears on 812 US grants and 740 published applications in this corpus.
Search patents in F25B- Granted patents
- 812
- Published applications
- 740
- Assignees
- 269
- Inventors
- 1,666
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 8 | 0 |
| 1985 | 9 | 0 |
| 1986 | 10 | 0 |
| 1987 | 13 | 0 |
| 1988 | 7 | 0 |
| 1989 | 13 | 0 |
| 1990 | 9 | 0 |
| 1991 | 11 | 0 |
| 1992 | 11 | 0 |
| 1993 | 10 | 0 |
| 1994 | 11 | 0 |
| 1995 | 19 | 0 |
| 1996 | 7 | 0 |
| 1997 | 15 | 0 |
| 1998 | 13 | 0 |
| 1999 | 15 | 0 |
| 2000 | 24 | 0 |
| 2001 | 26 | 5 |
| 2002 | 28 | 15 |
| 2003 | 20 | 17 |
| 2004 | 13 | 19 |
| 2005 | 12 | 14 |
| 2006 | 12 | 13 |
| 2007 | 10 | 14 |
| 2008 | 6 | 16 |
| 2009 | 1 | 15 |
| 2010 | 9 | 21 |
| 2011 | 9 | 14 |
| 2012 | 12 | 19 |
| 2013 | 10 | 19 |
| 2014 | 9 | 27 |
| 2015 | 17 | 43 |
| 2016 | 24 | 34 |
| 2017 | 26 | 29 |
| 2018 | 31 | 48 |
| 2019 | 47 | 53 |
| 2020 | 44 | 75 |
| 2021 | 41 | 45 |
| 2022 | 49 | 54 |
| 2023 | 40 | 45 |
| 2024 | 47 | 40 |
| 2025 | 30 | 19 |
| 2026 | 22 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electromotive expansion valve and refrigeration circuit6 Oct 2026US 12,753,958 B2Mahle International GmbH
- Valve head structure and flow regulating valve with valve head structure29 Sep 2026US 12,747,794 B2Zhejiang Dunan Artificial Environment Co., Ltd.
- Thermal conditioning circuit22 Sep 2026US 12,741,506 B2Valeo Systemes Thermiques
- Air conditioner15 Sep 2026US 12,736,261 B2LG Electronics Inc.
- Air conditioner control method, air conditioner, storage medium and device25 Aug 2026US 12,716,608 B2Gd Midea Air-Conditioning Equipment Co., Ltd.
- Electronic expansion valve24 Sep 2026US 2026/0287227 A1Zhejiang Dunan Artificial Environment Co., Ltd.
- Valve device for operation with a refrigerant3 Sep 2026US 2026/0258990 A1Hanon Systems
- Motor-operated valve and refrigeration cycle device20 Aug 2026US 2026/0243366 A1Fujikoki Corporation
- Heat pump apparatus20 Aug 2026US 2026/0243473 A1Mitsubishi Electric Corporation
- Electronic expansion valve13 Aug 2026US 2026/0235209 A1Zhejiang Dunan Artificial Environment Co., Ltd.
Most cited
By later US patents
- Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor194US 6,047,557 ACopeland Corporation · 2000
- Economizer control with variable capacity193US 5,095,712 ACarrier Corporation · 1992
- Heat pump motor optimization and sensor fault detection164US 5,630,325 ACopeland Corporation · 1997
- Heat pump motor optimization and sensor fault detection156US 5,440,895 ACopeland Corporation · 1995
- Capacity modulated scroll machine156US 5,741,120 ACopeland Corporation · 1998