H01F 7/134
Actuators with two coils
Official title: {Actuators with two coils}
H01F7/134 (Actuators with two coils) appears on 236 US grants and 215 published applications in this corpus.
Search patents in H01F- Granted patents
- 236
- Published applications
- 215
- Assignees
- 173
- Inventors
- 519
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 0 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 0 | 1 |
| 2003 | 1 | 2 |
| 2004 | 3 | 2 |
| 2005 | 4 | 5 |
| 2006 | 1 | 11 |
| 2007 | 7 | 13 |
| 2008 | 4 | 14 |
| 2009 | 11 | 12 |
| 2010 | 6 | 9 |
| 2011 | 8 | 10 |
| 2012 | 10 | 3 |
| 2013 | 6 | 10 |
| 2014 | 7 | 6 |
| 2015 | 6 | 2 |
| 2016 | 7 | 7 |
| 2017 | 7 | 14 |
| 2018 | 6 | 12 |
| 2019 | 9 | 14 |
| 2020 | 13 | 14 |
| 2021 | 11 | 9 |
| 2022 | 11 | 18 |
| 2023 | 8 | 12 |
| 2024 | 15 | 8 |
| 2025 | 4 | 4 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Solenoid actuator and multi-solenoid actuator exerting constant force26 May 2026US 12,640,298 B2Pukyong National University Industry-University Cooperation Foundation
- Actuator device10 Feb 2026US 12,549,856 B2LG Innotek Co., Ltd.
- Electrically actuated pump27 Jan 2026US 12,535,062 B2World Club Supply Corp.
- Vapor ablation systems and methods20 Jan 2026US 12,527,615 B2Boston Scientific Scimed, Inc.
- Thomson coil with energized coil damping23 Sep 2025US 12,424,404 B2Eaton Intelligent Power Limited
- Microelectromechanical systems (mems) actuator with magnetic latching and methods for manufacturing and using the same8 Oct 2026US 2026/0307980 A1Atomic Machines, Inc.
- Actuator device14 May 2026US 2026/0136102 A1LG Innotek Co., Ltd.
- Thomson coil with energized coil damping4 Dec 2025US 2025/0372327 A1Eaton Intelligent Power Limited
- Push-pull valve11 Sep 2025US 2025/0283553 A1Aerojet Rocketdyne, Inc.
- Electromagnet for automatic transfer switch and corresponding automatic transfer switch1 May 2025US 2025/0140462 A1ABB Schweiz AG
Most cited
By later US patents
- Electromagnetically actuated valve85US 5,222,714 AAura Systems, Inc. · 1993
- Terminal connector assembly for a medical device and method therefor83US 6,912,423 B2Cardiac Pacemakers, Inc. · 2005
- D.C. Electromagnetic actuator71US 4,422,060 AHitachi Metals, Ltd. · 1983
- Proportional permanent magnet force actuator70US 4,928,028 AHydraulic Units, Incorporated · 1990
- Arrangement for electromagnetically operated actuators68US 4,515,343 AFev Forschungsgesellschaft fur Energietechnik und ver Brennungsmotoren mbH · 1985