H01F 7/1615
Armatures or stationary parts of magnetic circuit having permanent magnet
Official title: {Armatures or stationary parts of magnetic circuit having permanent magnet}
H01F7/1615 (Armatures or stationary parts of magnetic circuit having permanent magnet) appears on 405 US grants and 339 published applications in this corpus.
Search patents in H01F- Granted patents
- 405
- Published applications
- 339
- Assignees
- 291
- Inventors
- 839
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 9 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 8 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 7 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 11 | 0 |
| 1992 | 7 | 0 |
| 1993 | 6 | 0 |
| 1994 | 7 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 7 | 0 |
| 2000 | 7 | 0 |
| 2001 | 4 | 3 |
| 2002 | 5 | 6 |
| 2003 | 6 | 6 |
| 2004 | 4 | 9 |
| 2005 | 10 | 9 |
| 2006 | 7 | 15 |
| 2007 | 8 | 11 |
| 2008 | 6 | 16 |
| 2009 | 12 | 13 |
| 2010 | 5 | 15 |
| 2011 | 7 | 9 |
| 2012 | 20 | 9 |
| 2013 | 6 | 17 |
| 2014 | 8 | 9 |
| 2015 | 13 | 22 |
| 2016 | 18 | 17 |
| 2017 | 14 | 23 |
| 2018 | 11 | 13 |
| 2019 | 17 | 22 |
| 2020 | 19 | 20 |
| 2021 | 17 | 20 |
| 2022 | 18 | 22 |
| 2023 | 12 | 13 |
| 2024 | 17 | 9 |
| 2025 | 13 | 8 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electromagnetic actuator and valve having the electromagnetic actuator28 Jul 2026US 12,695,015 B2Magnetic Innovations LLC
- Solenoid actuator and multi-solenoid actuator exerting constant force26 May 2026US 12,640,298 B2Pukyong National University Industry-University Cooperation Foundation
- Magnetic latching connector with electric unlatch12 May 2026US 12,626,848 B2Testron Corporation
- Vapor ablation systems and methods20 Jan 2026US 12,527,615 B2Boston Scientific Scimed, Inc.
- Atomizing device9 Dec 2025US 12,490,769 B2Luxshare Precision Industry Co., Ltd.
- Microelectromechanical systems (mems) actuator with magnetic latching and methods for manufacturing and using the same8 Oct 2026US 2026/0307980 A1Atomic Machines, Inc.
- Vibrating actuator for use with wearable electronic device12 Feb 2026US 2026/0045399 A1Apollo Neuroscience, Inc.
- Actuator for a Circuit Breaker in a Switchgear15 Jan 2026US 2026/0018359 A1ABB Schweiz AG
- Bi-stable device13 Nov 2025US 2025/0349451 A1Dana Automotive Systems Group, LLC
- Push-pull valve11 Sep 2025US 2025/0283553 A1Aerojet Rocketdyne, Inc.
Most cited
By later US patents
- Force actuator with dual magnetic operation233US 5,896,076 A1999
- Apparatus for automatically controlling transmission of light through a lens system141US 4,264,154 APolaroid Corporation · 1981
- Electromagnetic reciprocating linear actuator with permanent magnet armature133US 4,259,653 AMagnetic Laboratories, Inc. · 1981
- Hybrid linear actuator132US 4,845,392 AEaton Corporation · 1989
- High efficiency, inductive vibration energy harvester129US 7,569,952 B1Ferro Solutions, Inc. · 2009