H01F 7/08
With armatures
Official title: with armatures
H01F7/08 (With armatures) appears on 3,868 US grants and 3,051 published applications in this corpus.
Search patents in H01F- Granted patents
- 3,868
- Published applications
- 3,051
- Assignees
- 1,670
- Inventors
- 7,437
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 41 | 0 |
| 1977 | 33 | 0 |
| 1978 | 39 | 0 |
| 1979 | 32 | 0 |
| 1980 | 47 | 0 |
| 1981 | 51 | 0 |
| 1982 | 52 | 0 |
| 1983 | 46 | 0 |
| 1984 | 52 | 0 |
| 1985 | 68 | 0 |
| 1986 | 42 | 0 |
| 1987 | 88 | 0 |
| 1988 | 63 | 0 |
| 1989 | 61 | 0 |
| 1990 | 55 | 0 |
| 1991 | 64 | 0 |
| 1992 | 54 | 0 |
| 1993 | 47 | 0 |
| 1994 | 62 | 0 |
| 1995 | 50 | 0 |
| 1996 | 43 | 0 |
| 1997 | 50 | 0 |
| 1998 | 74 | 0 |
| 1999 | 72 | 0 |
| 2000 | 55 | 0 |
| 2001 | 64 | 20 |
| 2002 | 60 | 61 |
| 2003 | 61 | 62 |
| 2004 | 65 | 86 |
| 2005 | 71 | 84 |
| 2006 | 71 | 106 |
| 2007 | 45 | 91 |
| 2008 | 50 | 111 |
| 2009 | 58 | 118 |
| 2010 | 74 | 108 |
| 2011 | 68 | 102 |
| 2012 | 89 | 87 |
| 2013 | 97 | 120 |
| 2014 | 89 | 95 |
| 2015 | 104 | 141 |
| 2016 | 105 | 122 |
| 2017 | 116 | 168 |
| 2018 | 112 | 165 |
| 2019 | 158 | 173 |
| 2020 | 164 | 202 |
| 2021 | 153 | 171 |
| 2022 | 153 | 214 |
| 2023 | 134 | 152 |
| 2024 | 158 | 122 |
| 2025 | 148 | 98 |
| 2026 | 60 | 72 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01F 7/16Rectilinearly-movable armatures1,973
- H01F 7/18Circuit arrangements for obtaining desired operating characteristics993
- H01F 7/081Magnetic constructions958
- H01F 7/121Guiding or setting position of armatures576
- H01F 7/14Pivoting armatures422
- H01F 7/13Characterised by pulling-force characteristic247
- H01F 7/134Actuators with two coils236
- H01F 7/127Assembling149
All 14 subgroupsShow fewer
Recent patents
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- Optical element driving mechanism8 Sep 2026US 12,730,357 B2Actutek Corporation
- Magnetic-based actuation mechanisms for actuating magnetically-responsive microposts in a reaction chamber25 Aug 2026US 12,714,997 B2Redbud Labs, Inc.
- Microelectromechanical systems (mems) actuator with magnetic latching and methods for manufacturing and using the same8 Oct 2026US 2026/0307980 A1Atomic Machines, Inc.
- Optical element driving mechanism8 Oct 2026US 2026/0311922 A1Actutek Corporation
- Actuator arrangement and vehicle assembly with such an actuator arrangement1 Oct 2026US 2026/0302030 A1
- Device for movement of an optical unit, laser process head comprising the device and equipment comprising the laser process head3 Sep 2026US 2026/0260797 A1El. En. S.P.A.
- Armature unit and linear motor3 Sep 2026US 2026/0260798 A1Fanuc Corporation
Most cited
By later US patents
- Combined position sensor and magnetic motor or bearing1,212US 4,652,820 ANorth American Philips Corporation · 1987
- Force actuator with dual magnetic operation233US 5,896,076 A1999
- Mechanical locking of floor panels with vertical snap folding225US 8,353,140 B2Välinge Innovation AB · 2013
- Proportional electropneumatic solenoid-controlled valve207US 4,954,799 APuritan-Bennett Corporation · 1990
- Mechanical locking of floor panels with vertical snap folding and an installation method to connect such panels189US 8,499,521 B2Välinge Innovation AB · 2013