H01F 7/081
Magnetic constructions
Official title: {Magnetic constructions}
H01F7/081 (Magnetic constructions) appears on 958 US grants and 1,077 published applications in this corpus.
Search patents in H01F- Granted patents
- 958
- Published applications
- 1,077
- Assignees
- 584
- Inventors
- 2,264
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 8 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 8 | 0 |
| 1999 | 9 | 0 |
| 2000 | 14 | 0 |
| 2001 | 15 | 6 |
| 2002 | 19 | 16 |
| 2003 | 15 | 16 |
| 2004 | 22 | 22 |
| 2005 | 17 | 22 |
| 2006 | 16 | 28 |
| 2007 | 15 | 29 |
| 2008 | 13 | 28 |
| 2009 | 14 | 28 |
| 2010 | 19 | 30 |
| 2011 | 17 | 34 |
| 2012 | 27 | 17 |
| 2013 | 21 | 26 |
| 2014 | 24 | 34 |
| 2015 | 28 | 41 |
| 2016 | 32 | 34 |
| 2017 | 31 | 42 |
| 2018 | 29 | 47 |
| 2019 | 38 | 65 |
| 2020 | 57 | 99 |
| 2021 | 69 | 78 |
| 2022 | 75 | 125 |
| 2023 | 58 | 76 |
| 2024 | 79 | 49 |
| 2025 | 78 | 52 |
| 2026 | 31 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Imaging lens module and electronic device29 Sep 2026US 12,748,341 B2Largan Precision Co., Ltd.
- Apparatus and methods for generating force in electromagnetic systems29 Sep 2026US 12,749,607 B2
- 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.
- Nested coil assembly for generating a constrained magnetic field11 Aug 2026US 12,706,237 B1
- Optical element driving mechanism8 Oct 2026US 2026/0311922 A1Actutek Corporation
- 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
- Systems and Methods for an Actuator Cover With an Integrated Sensor3 Sep 2026US 2026/0260799 A1HUSCO Automotive Holdings LLC
- Electromagnet with impedance element27 Aug 2026US 2026/0253776 A1Svm Schultz Verwaltungs-GmbH & Co.KG
Most cited
By later US patents
- Bistable solenoid valve53US 5,599,003 AInterelektrik Ges. m.b.H. & Co. KG · 1997
- Electromagnet device51US 8,179,217 B2OMRON Corporation · 2012
- Eddy current inductive drive electromechanical liner actuator and switching arrangement45US 7,777,600 B2PowerPath Technologies LLC · 2010
- Control valve for a vehicular brake system42US 6,877,717 B2Kelsey-Hayes Company · 2005
- Electromagnetic device particularly useful as a vibrator for a fluid pump41US 6,652,252 B2MNDE Technologies L.L.C. · 2003