F25B 2321/001
Details of machines, plants or systems, using electric or magnetic effects: by
Official title: by using electro-caloric effects
F25B2321/001 (Details of machines, plants or systems, using electric or magnetic effects: by) appears on 73 US grants and 112 published applications in this corpus.
Search patents in F25B- Granted patents
- 73
- Published applications
- 112
- Assignees
- 65
- Inventors
- 215
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 4 |
| 2012 | 0 | 4 |
| 2013 | 1 | 3 |
| 2014 | 5 | 5 |
| 2015 | 2 | 7 |
| 2016 | 5 | 3 |
| 2017 | 5 | 13 |
| 2018 | 5 | 6 |
| 2019 | 3 | 12 |
| 2020 | 4 | 12 |
| 2021 | 6 | 16 |
| 2022 | 11 | 4 |
| 2023 | 4 | 5 |
| 2024 | 8 | 5 |
| 2025 | 4 | 2 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-layered electrocaloric heat pump systems and methods16 Jun 2026US 12,656,027 B2Auburn University
- Electro-caloric and/or pyroelectric heat exchanger with an improved housing24 Mar 2026US 12,584,662 B2Luxembourg Institute of Science and Technology (List)
- Method for the stabilisation and/or open-loop and/or closed-loop control of a working temperature, heat exchanger unit, device for transporting energy, refrigerating machine and heat pump17 Mar 2026US 12,578,125 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Electrocaloric effect element11 Nov 2025US 12,467,664 B2Murata Manufacturing Co., Ltd.
- Cascade heat pump and method for heating or cooling a coolant by means of a cascade heat pump1 Apr 2025US 12,264,855 B2Volkswagen Aktiengesellschaft
- Field activated solid-state thermal switches and sub-kelvin adr stage including field activated solid-state thermal switches17 Sep 2026US 2026/0276251 A1Ohio State Innovation Foundation
- Regenerative Device Based on Solid-State Elastocaloric Refrigeration and Heating and Refrigeration and Heating Device23 Jul 2026US 2026/0210587 A1The Hong Kong University of Science and Technology
- Solid-state cooling of drilling fluid on a rig16 Apr 2026US 2026/0103951 A1Schlumberger Technology Corporation
- Elastocaloric system and method of operation16 Apr 2026US 2026/0104186 A1Barrow Green, LLC
- Functionally graded structures, methods, and systems for thermal management26 Feb 2026US 2026/0055935 A1The University of Toledo
Most cited
By later US patents
- Electrocaloric device and thermal transfer systems employing the same50US 6,877,325 B1CeramPhysics, Inc. · 2005
- Flow-synchronous field motion refrigeration47US 9,739,510 B22017
- Piezo-pyroelectric energy converter and method45US 5,644,184 AThermodyne SAS · 1997
- Solid-state electrocaloric cooling system and method34US 4,757,688 AHughes Aircraft Company · 1988
- Enhanced magnetocaloric effect material26US 7,076,959 B2Brookhaven Science Associates, LLC · 2006