H01F 41/02
Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or
Official title: for manufacturing cores, coils, or magnets (H01F41/14 takes precedence; for dynamo-electric machines H02K15/00)
H01F41/02 (Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or) appears on 8,108 US grants and 9,308 published applications in this corpus.
Search patents in H01F- Granted patents
- 8,108
- Published applications
- 9,308
- Assignees
- 2,397
- Inventors
- 14,994
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 47 | 0 |
| 1977 | 31 | 0 |
| 1978 | 39 | 0 |
| 1979 | 33 | 0 |
| 1980 | 25 | 0 |
| 1981 | 41 | 0 |
| 1982 | 25 | 0 |
| 1983 | 35 | 0 |
| 1984 | 37 | 0 |
| 1985 | 56 | 0 |
| 1986 | 39 | 0 |
| 1987 | 57 | 0 |
| 1988 | 45 | 0 |
| 1989 | 67 | 0 |
| 1990 | 60 | 0 |
| 1991 | 64 | 0 |
| 1992 | 61 | 0 |
| 1993 | 61 | 0 |
| 1994 | 68 | 0 |
| 1995 | 56 | 0 |
| 1996 | 72 | 0 |
| 1997 | 63 | 0 |
| 1998 | 68 | 0 |
| 1999 | 87 | 0 |
| 2000 | 112 | 0 |
| 2001 | 109 | 47 |
| 2002 | 142 | 195 |
| 2003 | 157 | 188 |
| 2004 | 137 | 229 |
| 2005 | 127 | 195 |
| 2006 | 154 | 186 |
| 2007 | 147 | 211 |
| 2008 | 126 | 226 |
| 2009 | 119 | 262 |
| 2010 | 184 | 272 |
| 2011 | 196 | 220 |
| 2012 | 182 | 223 |
| 2013 | 160 | 357 |
| 2014 | 170 | 374 |
| 2015 | 207 | 442 |
| 2016 | 277 | 426 |
| 2017 | 324 | 476 |
| 2018 | 341 | 603 |
| 2019 | 404 | 631 |
| 2020 | 464 | 623 |
| 2021 | 429 | 641 |
| 2022 | 461 | 577 |
| 2023 | 554 | 524 |
| 2024 | 514 | 494 |
| 2025 | 414 | 401 |
| 2026 | 260 | 285 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Anisotropic iron nitride permanent magnets6 Oct 2026US 12,755,878 B2Niron Magnetics, Inc.
- Method of manufacturing permanent magnets6 Oct 2026US 12,755,879 B2
- Inductor coil and forming method thereof6 Oct 2026US 12,755,885 B2Semiconductor Manufacturing International (Shanghai) Corporation
- Electro-magnetic coil with coolant permeability6 Oct 2026US 12,755,890 B2Magnebotix AG
- Multilayer-type coil component6 Oct 2026US 12,755,894 B2Murata Manufacturing Co., Ltd.
- Additive manufacturing polymers with high metal inclusion content8 Oct 2026US 2026/0308813 A1The Research Foundation for The State University of New York
- Magnetic paste, circuit member, and method for manufacturing circuit member8 Oct 2026US 2026/0311919 A1
- Magnetic shunt for toroidal magnetic assembly8 Oct 2026US 2026/0311929 A1Tesla, Inc.
- Coil support assembly having coil support structures joined together via respective joint structures and methods of assembling same8 Oct 2026US 2026/0311931 A1GE Vernova Renovables Espana, S.L.
- Filter, preparation method thereof, and electronic apparatus8 Oct 2026US 2026/0312561 A1Beijing BOE Sensor Technology Co., Ltd.
Most cited
By later US patents
- Contact-less power transfer495US 6,906,495 B2Splashpower Limited · 2005
- Contact-less power transfer438US 7,525,283 B2Access Business Group International LLC · 2009
- Methods for forming anastomoses using magnetic force364US 6,352,543 B1Ventrica, Inc. · 2002
- Ferromagnetic powder for dust core300US 7,498,080 B2Foxconn Technology Co., Ltd. · 2009
- Components, systems and methods for forming anastomoses using magnetism or other coupling means290US 7,241,300 B2Medtronic, Inc. · 2007