H01F 1/00
Magnets or magnetic bodies characterised by the magnetic materials therefor
Official title: Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
H01F1/00 (Magnets or magnetic bodies characterised by the magnetic materials therefor) appears on 8,420 US grants and 9,062 published applications in this corpus.
Search patents in H01F- Granted patents
- 8,420
- Published applications
- 9,062
- Assignees
- 2,418
- Inventors
- 15,104
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 78 | 0 |
| 1977 | 59 | 0 |
| 1978 | 66 | 0 |
| 1979 | 49 | 0 |
| 1980 | 57 | 0 |
| 1981 | 80 | 0 |
| 1982 | 58 | 0 |
| 1983 | 66 | 0 |
| 1984 | 68 | 0 |
| 1985 | 63 | 0 |
| 1986 | 68 | 0 |
| 1987 | 50 | 0 |
| 1988 | 65 | 0 |
| 1989 | 103 | 0 |
| 1990 | 118 | 0 |
| 1991 | 123 | 0 |
| 1992 | 107 | 0 |
| 1993 | 109 | 0 |
| 1994 | 74 | 0 |
| 1995 | 106 | 0 |
| 1996 | 114 | 0 |
| 1997 | 105 | 0 |
| 1998 | 129 | 0 |
| 1999 | 134 | 0 |
| 2000 | 123 | 0 |
| 2001 | 159 | 52 |
| 2002 | 173 | 201 |
| 2003 | 190 | 231 |
| 2004 | 171 | 249 |
| 2005 | 129 | 191 |
| 2006 | 123 | 230 |
| 2007 | 126 | 209 |
| 2008 | 127 | 195 |
| 2009 | 116 | 230 |
| 2010 | 136 | 284 |
| 2011 | 156 | 283 |
| 2012 | 187 | 322 |
| 2013 | 176 | 334 |
| 2014 | 172 | 347 |
| 2015 | 183 | 447 |
| 2016 | 253 | 394 |
| 2017 | 315 | 401 |
| 2018 | 291 | 489 |
| 2019 | 362 | 500 |
| 2020 | 396 | 524 |
| 2021 | 373 | 545 |
| 2022 | 389 | 620 |
| 2023 | 442 | 516 |
| 2024 | 455 | 532 |
| 2025 | 379 | 402 |
| 2026 | 269 | 334 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01F 1/01Magnets or magnetic bodies characterised by the magnetic materials therefor: of inorganic7,333
- H01F 1/0036Showing low dimensional magnetism, i.e. spin rearrangements due to a restriction of823
- H01F 1/44Magnets or magnetic bodies characterised by the magnetic materials therefor: of magnetic539
- H01F 1/42Magnets or magnetic bodies characterised by the magnetic materials therefor: of organic105
- H01F 1/0027Thick magnetic films99
- H01F 1/0018Diamagnetic or paramagnetic materials, i.e. materials with low susceptibility and no hysteresis59
- H01F 1/0009Antiferromagnetic materials, i.e. materials exhibiting a néel transition temperature50
Recent patents
- Dispersed iron oxide magnetic powder slurry and method for producing same6 Oct 2026US 12,753,089 B2Dowa Electronics Materials Co., Ltd.
- Soft magnetic alloy powder and production method therefor6 Oct 2026US 12,753,473 B2Mitsubishi Steel Mfg. Co., Ltd.
- Systems and methods for a remote control actuator6 Oct 2026US 12,753,743 B2Trustees of Tufts College
- Flexible high-temperature superconductor and method for its production6 Oct 2026US 12,755,869 B2S-Innovations LLC
- Paramagnetic garnet-based transparent ceramic and method for producing same6 Oct 2026US 12,755,877 B2Shin-Etsu Chemical Co., Ltd.
- Method for producing insulation coating treatment liquid for grain-oriented electrical steel sheet and method for producing grain-oriented electrical steel sheet8 Oct 2026US 2026/0308387 A1Nippon Steel Corporation
- Low iron loss fe-based amorphous alloy having high saturation magnetization value8 Oct 2026US 2026/0308737 A1Chang Sung Co.
- Light-emitting device8 Oct 2026US 2026/0311621 A1Semiconductor Energy Laboratory Co.Ltd.
- Rare earth sintered magnet, method for producing rare earth sintered magnet, rotor, and rotary machine8 Oct 2026US 2026/0311916 A1Mitsubishi Electric Corporation
- Magnetic steel containing high-abundance rare earth elements, preparation method therefor, and use thereof8 Oct 2026US 2026/0311917 A1FUJIAN GOLDEN DRAGON RARE-EARTH Co., Ltd.
Most cited
By later US patents
- Intravascular pressure and flow sensor523US 5,873,835 ASciMed Life Systems, Inc. · 1999
- Magnetic iron-dextran microspheres466US 4,452,773 ACanadian Patents and Development Limited · 1984
- Electronic device using magnetic components385US 5,695,864 AInternational Business Machines Corporation · 1997
- Combinatorial synthesis of novel materials365US 5,985,356 ASymyx Technologies, Inc. · 1999
- Systems and methods for the combinatorial synthesis of novel materials320US 6,045,671 ASymyx Technologies, Inc. · 2000