H01F 41/00
Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or
Official title: Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
H01F41/00 (Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or) appears on 10,840 US grants and 11,850 published applications in this corpus.
Search patents in H01F- Granted patents
- 10,840
- Published applications
- 11,850
- Assignees
- 2,932
- Inventors
- 19,317
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 62 | 0 |
| 1977 | 53 | 0 |
| 1978 | 66 | 0 |
| 1979 | 48 | 0 |
| 1980 | 48 | 0 |
| 1981 | 67 | 0 |
| 1982 | 53 | 0 |
| 1983 | 73 | 0 |
| 1984 | 63 | 0 |
| 1985 | 81 | 0 |
| 1986 | 62 | 0 |
| 1987 | 78 | 0 |
| 1988 | 61 | 0 |
| 1989 | 83 | 0 |
| 1990 | 87 | 0 |
| 1991 | 87 | 0 |
| 1992 | 75 | 0 |
| 1993 | 77 | 0 |
| 1994 | 88 | 0 |
| 1995 | 84 | 0 |
| 1996 | 104 | 0 |
| 1997 | 86 | 0 |
| 1998 | 105 | 0 |
| 1999 | 125 | 0 |
| 2000 | 158 | 0 |
| 2001 | 157 | 78 |
| 2002 | 219 | 294 |
| 2003 | 231 | 304 |
| 2004 | 243 | 384 |
| 2005 | 209 | 309 |
| 2006 | 250 | 310 |
| 2007 | 226 | 315 |
| 2008 | 202 | 363 |
| 2009 | 194 | 369 |
| 2010 | 255 | 387 |
| 2011 | 291 | 305 |
| 2012 | 280 | 316 |
| 2013 | 260 | 496 |
| 2014 | 249 | 491 |
| 2015 | 300 | 561 |
| 2016 | 367 | 492 |
| 2017 | 410 | 538 |
| 2018 | 387 | 668 |
| 2019 | 495 | 765 |
| 2020 | 567 | 776 |
| 2021 | 542 | 743 |
| 2022 | 552 | 660 |
| 2023 | 638 | 606 |
| 2024 | 586 | 567 |
| 2025 | 469 | 448 |
| 2026 | 287 | 305 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01F 41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or8,108
- H01F 41/14Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or2,156
- H01F 41/32Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or713
- H01F 41/005Impregnating or encapsulating286
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
- Inductance element and inductance element fabrication method6 Oct 2026US 12,755,886 B2Lapis Semiconductor Co., Ltd.
- Electro-magnetic coil with coolant permeability6 Oct 2026US 12,755,890 B2Magnebotix AG
- 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
- Heterogeneous display elements and methods for their fabrication562US 6,241,921 B1Massachusetts Institute of Technology · 2001
- Contact-less power transfer495US 6,906,495 B2Splashpower Limited · 2005
- Contact-less power transfer438US 7,525,283 B2Access Business Group International LLC · 2009
- Combinatorial synthesis of novel materials365US 5,985,356 ASymyx Technologies, Inc. · 1999
- Methods for forming anastomoses using magnetic force364US 6,352,543 B1Ventrica, Inc. · 2002