H01F 1/012
Adapted for magnetic entropy change by magnetocaloric effect
Official title: {adapted for magnetic entropy change by magnetocaloric effect, e.g. used as magnetic refrigerating material (refrigeration systems using magnetic effects F25B21/00)}
H01F1/012 (Adapted for magnetic entropy change by magnetocaloric effect) appears on 184 US grants and 237 published applications in this corpus.
Search patents in H01F- Granted patents
- 184
- Published applications
- 237
- Assignees
- 138
- Inventors
- 472
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 7 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 2 |
| 2003 | 2 | 3 |
| 2004 | 4 | 7 |
| 2005 | 0 | 2 |
| 2006 | 5 | 6 |
| 2007 | 3 | 3 |
| 2008 | 0 | 2 |
| 2009 | 2 | 6 |
| 2010 | 5 | 7 |
| 2011 | 4 | 22 |
| 2012 | 4 | 11 |
| 2013 | 5 | 14 |
| 2014 | 3 | 19 |
| 2015 | 5 | 13 |
| 2016 | 11 | 10 |
| 2017 | 12 | 10 |
| 2018 | 12 | 16 |
| 2019 | 9 | 26 |
| 2020 | 15 | 14 |
| 2021 | 11 | 9 |
| 2022 | 6 | 10 |
| 2023 | 10 | 7 |
| 2024 | 11 | 10 |
| 2025 | 3 | 4 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process for preparation of silica coated magnetic particles17 Mar 2026US 12,580,106 B2Norweigan University of Science and Technology
- Cold storage material, refrigerator, device incorporating superconducting coil, and method of manufacturing cold storage material24 Feb 2026US 12,559,660 B2Niterra Materials Co., Ltd.
- Method for heat treating an object27 Jan 2026US 12,533,727 B2Vacuumschmelze GmbH & Co.KG
- Cold storage material, refrigerator, device incorporating superconducting coil, and method of manufacturing cold storage material27 Jan 2026US 12,534,658 B2Niterra Materials Co., Ltd.
- Regenerator for a magnetic heat exchanger and heat exchanger25 Nov 2025US 12,480,690 B2Vacuumschmelze GmbH & Co.KG
- Granulated particle for cold storage particles, cold storage particles, regenerator, refrigerator, cryopump, superconducting magnet, nuclear magnetic resonance imaging apparatus, nuclear magnetic resonance apparatus, magnetic field application-type single crystal pulling-out apparatus, and helium recondensing apparatus16 Jul 2026US 2026/0202141 A1Niterra Materials Co., Ltd.
- Regenerator for a magnetic heat exchanger and heat exchanger12 Mar 2026US 2026/0071789 A1Vacuumschmelze GmbH & Co.KG
- Cold storage material, refrigerator, device incorporating superconducting coil, and method of manufacturing cold storage material26 Feb 2026US 2026/0055308 A1Kabushiki Kaisha Toshiba
- Cold storage material, cold storage material particle, granulated particle, cold storage device, refrigerator, cryopump, superconducting magnet, nuclear magnetic resonance imaging apparatus, nuclear magnetic resonance apparatus, magnetic field application type single crystal pulling apparatus, helium re-condensing device, and dilution refrigerator1 Jan 2026US 2026/0004958 A1
- Method for producing a magnetocaloric heat exchanger element19 Jun 2025US 2025/0198712 A1Magnotherm Solutions GmbH
Most cited
By later US patents
- Active magnetic regenerator method and apparatus96US 5,249,424 AAstronautics Corporation of America · 1993
- Molecular separator apparatus88US 6,706,097 B2Hexablock, Inc. · 2004
- Magnetic refrigerant material, regenerator and magnetic refrigerator74US 6,826,915 B2Meomax Co., Ltd. · 2004
- Wheel-type magnetic refrigerator68US 4,408,463 A1983
- Composite article with magnetocalorically active material and method for its production64US 8,551,210 B2Vacuumschmelze GmbH & Co.KG · 2013