F01L 2009/2148
Using permanent magnet
Official title: {using permanent magnet}
F01L2009/2148 (Using permanent magnet) appears on 37 US grants and 45 published applications in this corpus.
Search patents in F01L- Granted patents
- 37
- Published applications
- 45
- Assignees
- 25
- Inventors
- 99
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 3 | 4 |
| 2004 | 2 | 4 |
| 2005 | 1 | 6 |
| 2006 | 4 | 4 |
| 2007 | 6 | 10 |
| 2008 | 3 | 3 |
| 2009 | 5 | 4 |
| 2010 | 2 | 1 |
| 2011 | 4 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 2 |
| 2022 | 2 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year.
Recent patents
- Fast-acting toggling armature uses centring spring9 Dec 2025US 12,494,312 B2Cheesecake Energy Ltd.
- Electromagnetic soft actuators20 Sep 2022US 11,448,103 B2Board of Regents, The University of Texas System
- Actuator control system for bi-stable electric rocker arm latches15 Mar 2022US 11,274,579 B2Eaton Intelligent Power Limited
- Electromagnetic latch assembly with flexible latch pin coupling12 Oct 2021US 11,143,064 B2Eaton Intelligent Power Limited
- Valvetrain with rocker arm housing magnetically actuated latch15 Jan 2019US 10,180,089 B2Eaton Intelligent Power Limited
- Fast-Acting Toggling Armature Uses Centring Spring11 May 2023US 2023/0141997 A1Cheesecake Energy Ltd.
- Actuator control system for bi-stable electric rocker arm latches24 Jun 2021US 2021/0189920 A1Eaton Intelligent Power Limited
- Electromagnetic latch assembly with flexible latch pin coupling18 Feb 2021US 2021/0047948 A1Eaton Intelligent Power Limited
- Electromagnetic soft actuators2 Jan 2020US 2020/0003088 A1Board of Regents, The University of Texas System
- Valvetrain with rocker arm housing magnetically actuated latch24 Aug 2017US 2017/0241300 A1Eaton Corporation
Most cited
By later US patents
- System and method for reducing vehicle acceleration during engine transitions49US 7,426,915 B2Ford Global Technologies, LLC · 2008
- Enhanced permanent magnet electromagnetic actuator for an electronic valve actuation system of an engine15US 7,249,579 B2Ford Global Technologies, LLC · 2007
- Electromagnetic actuator with permanent magnet14US 6,763,789 B1Ford Global Technologies, LLC · 2004
- Electromagnetic valve actuator for a valve of an engine13US 6,216,653 B1Unisia Jecs Corporation · 2001
- Permanent magnet electromagnetic actuator for an electronic valve actuation system of an engine13US 7,124,720 B2Ford Global Technologies, LLC · 2006