H01F 1/03
Characterised by their coercivity
Official title: characterised by their coercivity {(H01F1/40 takes precedence)}
H01F1/03 (Characterised by their coercivity) appears on 6,964 US grants and 7,472 published applications in this corpus.
Search patents in H01F- Granted patents
- 6,964
- Published applications
- 7,472
- Assignees
- 1,801
- Inventors
- 11,658
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 77 | 0 |
| 1977 | 51 | 0 |
| 1978 | 61 | 0 |
| 1979 | 49 | 0 |
| 1980 | 54 | 0 |
| 1981 | 78 | 0 |
| 1982 | 54 | 0 |
| 1983 | 57 | 0 |
| 1984 | 62 | 0 |
| 1985 | 60 | 0 |
| 1986 | 60 | 0 |
| 1987 | 45 | 0 |
| 1988 | 61 | 0 |
| 1989 | 93 | 0 |
| 1990 | 106 | 0 |
| 1991 | 115 | 0 |
| 1992 | 92 | 0 |
| 1993 | 92 | 0 |
| 1994 | 59 | 0 |
| 1995 | 86 | 0 |
| 1996 | 88 | 0 |
| 1997 | 82 | 0 |
| 1998 | 95 | 0 |
| 1999 | 103 | 0 |
| 2000 | 92 | 0 |
| 2001 | 128 | 42 |
| 2002 | 138 | 166 |
| 2003 | 156 | 164 |
| 2004 | 119 | 174 |
| 2005 | 88 | 136 |
| 2006 | 85 | 154 |
| 2007 | 96 | 149 |
| 2008 | 96 | 152 |
| 2009 | 87 | 185 |
| 2010 | 98 | 215 |
| 2011 | 121 | 195 |
| 2012 | 137 | 230 |
| 2013 | 133 | 255 |
| 2014 | 114 | 264 |
| 2015 | 129 | 350 |
| 2016 | 182 | 325 |
| 2017 | 249 | 345 |
| 2018 | 240 | 425 |
| 2019 | 304 | 429 |
| 2020 | 332 | 451 |
| 2021 | 321 | 495 |
| 2022 | 349 | 555 |
| 2023 | 398 | 466 |
| 2024 | 409 | 481 |
| 2025 | 342 | 361 |
| 2026 | 241 | 308 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Anisotropic iron nitride permanent magnets6 Oct 2026US 12,755,878 B2Niron Magnetics, Inc.
- 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
- Surveillance system having magnetomechanical marker303US 4,510,489 AAllied Corporation · 1985
- Ferromagnetic powder for dust core300US 7,498,080 B2Foxconn Technology Co., Ltd. · 2009
- Materials and products using nanostructured non-stoichiometric substances226US 6,344,271 B12002
- Nanotechnology for biomedical products224US 6,572,672 B2NanoProducts Corporation · 2003
- Magnetically coded device145US 5,631,093 AGeneral Motors Corporation · 1997