F01L 2009/2105
Comprising two or more coils
Official title: {comprising two or more coils}
F01L2009/2105 (Comprising two or more coils) appears on 86 US grants and 98 published applications in this corpus.
Search patents in F01L- Granted patents
- 86
- Published applications
- 98
- Assignees
- 54
- Inventors
- 178
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 6 |
| 2002 | 7 | 11 |
| 2003 | 7 | 6 |
| 2004 | 5 | 6 |
| 2005 | 5 | 8 |
| 2006 | 6 | 9 |
| 2007 | 5 | 15 |
| 2008 | 9 | 5 |
| 2009 | 1 | 3 |
| 2010 | 1 | 2 |
| 2011 | 3 | 0 |
| 2012 | 1 | 2 |
| 2013 | 1 | 4 |
| 2014 | 0 | 1 |
| 2015 | 2 | 2 |
| 2016 | 1 | 2 |
| 2017 | 2 | 2 |
| 2018 | 2 | 2 |
| 2019 | 1 | 2 |
| 2020 | 5 | 4 |
| 2021 | 1 | 3 |
| 2022 | 3 | 1 |
| 2023 | 2 | 2 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Fast-acting toggling armature uses centring spring9 Dec 2025US 12,494,312 B2Cheesecake Energy Ltd.
- Actuator with open-loop control direct drive26 Dec 2023US 11,852,055 B2Mmt SA
- Electromagnetic actuator16 May 2023US 11,649,743 B2Msg Mechatronic Systems GmbH
- Electromagnetic soft actuators20 Sep 2022US 11,448,103 B2Board of Regents, The University of Texas System
- Method and device for electrically controlling a valve actuator in an internal combustion engine22 Feb 2022US 11,255,228 B2Hedman Ericsson Patent AB
- Fast-Acting Toggling Armature Uses Centring Spring11 May 2023US 2023/0141997 A1Cheesecake Energy Ltd.
- Electronic Valve Train Assembly27 Apr 2023US 2023/0127691 A1
- Electromagnetic actuator17 Mar 2022US 2022/0082036 A1Msg Mechatronic Systems GmbH
- Method and device for electrically controlling a valve actuator in an internal combustion engine18 Nov 2021US 2021/0355848 A1Hedman Ericsson Patent AB
- Valve drive device with switchover device19 Aug 2021US 2021/0254516 A1Mahle International GmbH
Most cited
By later US patents
- System and method for servo control of nonlinear electromagnetic actuators139US 6,208,497 B1Venture Scientifics, LLC · 2001
- Electromagnetic valve control system48US 5,072,700 AIsuzu Ceramics Research Institute Co., Ltd. · 1991
- Solenoid cassette pump with servo controlled volume detection36US 6,942,469 B2Crystal Investments, Inc. · 2005
- Method for protection against overheating of electromagnetic actuators for actuation of intake and exhaust valves in internal-combustion engines33US 6,390,038 B1Magneti Marelli S.p.A. · 2002
- System and method for regenerative electromagnetic engine valve actuation26US 6,039,014 AEaton Corporation · 2000