H01F 1/0009
Antiferromagnetic materials, i.e. materials exhibiting a néel transition temperature
Official title: {Antiferromagnetic materials, i.e. materials exhibiting a Néel transition temperature (H01F1/0036 takes precedence)}
H01F1/0009 (Antiferromagnetic materials, i.e. materials exhibiting a néel transition temperature) appears on 50 US grants and 57 published applications in this corpus.
Search patents in H01F- Granted patents
- 50
- Published applications
- 57
- Assignees
- 53
- Inventors
- 201
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 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 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 0 | 2 |
| 2005 | 1 | 2 |
| 2006 | 2 | 5 |
| 2007 | 1 | 1 |
| 2008 | 1 | 3 |
| 2009 | 1 | 3 |
| 2010 | 1 | 4 |
| 2011 | 2 | 4 |
| 2012 | 0 | 2 |
| 2013 | 1 | 4 |
| 2014 | 4 | 2 |
| 2015 | 5 | 3 |
| 2016 | 3 | 1 |
| 2017 | 3 | 2 |
| 2018 | 1 | 3 |
| 2019 | 2 | 0 |
| 2020 | 2 | 6 |
| 2021 | 2 | 0 |
| 2022 | 1 | 2 |
| 2023 | 0 | 1 |
| 2024 | 2 | 3 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Iron-rich permanent magnet10 Mar 2026US 12,573,551 B2Regents of the University of Minnesota
- Iridium-manganese-based tunnel magnetoresistance sensing element with tantalum-nitride buffer layer for increased thermal stability28 Jan 2025US 12,210,075 B2Infineon Technologies AG
- Magnetoresistive sensor element having a wide linear response and robust nominal performance and manufacturing method thereof21 Jan 2025US 12,204,005 B2Allegro MicroSystems, LLC
- Magnetic plate(s)15 Oct 2024US 12,119,174 B1The Ridge Wallet LLC
- Iron-rich permanent magnet16 Jan 2024US 11,875,934 B2Regents of the University of Minnesota
- Magnetic plate for compact wallet31 Jul 2025US 2025/0246351 A1The Ridge Wallet LLC
- Iridium-manganese-based tunnel magnetoresistance sensing element with tantalum-nitride buffer layer for increased thermal stability12 Sep 2024US 2024/0302459 A1Infineon Technologies AG
- Iron-rich permanent magnet4 Apr 2024US 2024/0112855 A1Regents of the University of Minnesota
- Magnetoresistive sensor element having a wide linear response and robust nominal performance and manufacturing method thereof18 Jan 2024US 2024/0019509 A1Crocus Technology SA
- Method of designing magnetism in compositionally complex oxides14 Sep 2023US 2023/0290553 A1
Most cited
By later US patents
- Active magnetic refrigerants based on Gd-Si-Ge material and refrigeration apparatus and process48US 5,743,095 AIowa State University Research Foundation, Inc. · 1998
- Passive thermal switch devices having thermal switch material that passively switches between a thermal insulating state and a thermal conducting state and vehicles having the same33US 10,354,785 B2Toyota Jidosha Kabushiki Kaisha · 2019
- Electromagnetic sensor element and methods and apparatus for making and using same25US 5,029,291 AKnogo Corporation · 1991
- Ferromagnetic shape memory alloy and its use20US 8,016,952 B2Japan Science and Technology Agency · 2011
- Method of making active magnetic refrigerant, colossal magnetostriction and giant magnetoresistive materials based on Gd-Si-Ge alloys19US 6,589,366 B1Iowa State University Research Foundation, Inc. · 2003