H01F 2007/1894
Minimizing impact energy on closure of magnetic circuit
Official title: {minimizing impact energy on closure of magnetic circuit}
H01F2007/1894 (Minimizing impact energy on closure of magnetic circuit) appears on 44 US grants and 29 published applications in this corpus.
Search patents in H01F- Granted patents
- 44
- Published applications
- 29
- Assignees
- 41
- Inventors
- 109
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 6 | 1 |
| 2002 | 2 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 3 | 2 |
| 2006 | 2 | 3 |
| 2007 | 1 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 2 |
| 2011 | 1 | 0 |
| 2012 | 2 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 2 | 3 |
| 2022 | 2 | 2 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 2 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for actuating a solenoid valve which is used for throughflow rate control of an agricultural spreading machine21 Oct 2025US 12,449,058 B2Amazonen-Werke H. Dreyer SE & Co. KG
- Thomson coil with energized coil damping23 Sep 2025US 12,424,404 B2Eaton Intelligent Power Limited
- Electromagnetic relay2 Apr 2024US 11,948,764 B2OMRON Corporation
- Actuation system to achieve soft landing and the control method thereof5 Dec 2023US 11,837,401 B2Ozyegin Universitesi
- Fuel system and fuel injector control strategy for stabilized injection control valve closing25 Oct 2022US 11,480,129 B2Caterpillar Inc.
- Thomson coil with energized coil damping4 Dec 2025US 2025/0372327 A1Eaton Intelligent Power Limited
- Multi-chamber air spring control19 Jun 2025US 2025/0196562 A1Jaguar Land Rover Limited
- Method for Actuating a Solenoid Valve Which is Used for Throughflow Rate Control of an Agricultural Spreading Machine14 Mar 2024US 2024/0084916 A1Amazonen-Werke H. Dreyer SE & Co. KG
- Fuel system and fuel injector control strategy for stabilized injection control valve closing25 Aug 2022US 2022/0268234 A1Caterpillar Inc.
- Thomson coil with energized coil damping5 May 2022US 2022/0139654 A1Eaton Intelligent Power Limited
Most cited
By later US patents
- Electromagnetic contactor with energy balanced closing system101US 4,893,102 AWestinghouse Electric Corp. · 1990
- Method of reducing the impact speed of an armature in an electromagnetic actuator68US 5,917,692 AFEV Motorentechnik GmbH & Co. Kommanditgesellschaft · 1999
- Electronic interlock for electromagnetic contactor56US 5,539,608 AEaton Corporation · 1996
- Control method and device for a switchgear actuator41US 6,331,687 B1Cooper Industries, Inc. · 2001
- Solenoid cassette pump with servo controlled volume detection36US 6,942,469 B2Crystal Investments, Inc. · 2005