F25B 41/375
Characterised by a variable restriction
Official title: characterised by a variable restriction, e.g. restrictors made of shape memory alloy
F25B41/375 (Characterised by a variable restriction) appears on 8 US grants and 6 published applications in this corpus.
Search patents in F25B- Granted patents
- 8
- Published applications
- 6
- Assignees
- 8
- Inventors
- 22
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Valve device17 Feb 2026US 12,553,526 B2Samsung Electronics Co., Ltd.
- Electronic expansion valve and assembly method therefor29 Mar 2022US 11,287,167 B2Zhejiang Sanhua Climate and Appliance Controls Group Co., Ltd
- Multi-evaporation cooling system21 Jan 2020US 10,539,341 B2Embraco Industria de Compressores e Solucoes em Refrigeracao Ltda.
- Refrigeration system and heat exchanger thereof1 Jan 2019US 10,168,083 B2Hangzhou Sanhua Research Institute Co., Ltd.
- Low vibration throttling device for throttle-cycle refrigerators2 Mar 1999US 5,875,651 AAPD Cryogenics, Inc.
- Valve device30 Mar 2023US 2023/0097656 A1Samsung Electronics Co., Ltd.
- Refrigeration machine20 Aug 2020US 2020/0263916 A1Mitsubishi Electric Corporation
- Electronic expansion valve and assembly method therefor5 Dec 2019US 2019/0368792 A1Zhejiang Sanhua Climate and Appliance Controls Group Co., Ltd
- Multi-Evaporation Cooling System16 Mar 2017US 2017/0074549 A1Whirlpool Corporation
- Capillary tube for a packaged terminal air conditioner unit14 Apr 2016US 2016/0102898 A1General Electric Company
Most cited
By later US patents
- Method for forming a variable restrictor10US 4,150,558 AGeneral Electric Company · 1979
- Variable restrictor for a refrigeration system7US 4,184,342 AGeneral Electric Company · 1980
- Two capillary vapor compression cycle device6US 4,406,134 AGeneral Electric Company · 1983
- Low vibration throttling device for throttle-cycle refrigerators5US 5,875,651 AAPD Cryogenics, Inc. · 1999
- Electronic expansion valve and assembly method therefor3US 11,287,167 B2Zhejiang Sanhua Climate and Appliance Controls Group Co., Ltd · 2022