H01F 2007/1684
Armature position measurement using coils
Official title: {Armature position measurement using coils}
H01F2007/1684 (Armature position measurement using coils) appears on 64 US grants and 36 published applications in this corpus.
Search patents in H01F- Granted patents
- 64
- Published applications
- 36
- Assignees
- 54
- Inventors
- 148
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
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| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 3 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 4 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 0 | 2 |
| 2019 | 4 | 4 |
| 2020 | 3 | 4 |
| 2021 | 4 | 2 |
| 2022 | 1 | 2 |
| 2023 | 2 | 3 |
| 2024 | 4 | 2 |
| 2025 | 1 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Method and device for predicting malfunctions of a dual-circuit solenoid valve9 Jan 2024US 11,867,731 B2Safran Electronics & Defense
- Electromagnet with impedance element27 Aug 2026US 2026/0253776 A1Svm Schultz Verwaltungs-GmbH & Co.KG
- Solenoid actuator efficiency optimization13 Aug 2026US 2026/0237547 A1Analog Devices International Unlimited Company
- Actuating Unit for an Electromagnet, Electromagnet, and Drive Unit24 Apr 2025US 2025/0132080 A1Svm Schultz Verwaltungs-GmbH & Co.KG
- Button deck with non-penetrating pushbutton30 Jan 2025US 2025/0037950 A1Aristocrat Technologies, Inc.
- Button deck with non-penetrating pushbutton16 May 2024US 2024/0161987 A1Aristocrat Technologies, Inc.
Most cited
By later US patents
- Method of reducing the impact speed of an armature in an electromagnetic actuator68US 5,917,692 AFEV Motorentechnik GmbH & Co. Kommanditgesellschaft · 1999
- Modulating hydraulic pressure control valve and assembly method therefor33US 4,774,976 AApplied Power Inc. · 1988
- Method and apparatus for determining the armature impact time when a solenoid valve is de-energized31US 5,650,909 AMTU Motoren-und Turbinen-Union · 1997
- Proportional valve for hydraulic systems25US 4,386,626 A1983
- Solenoid device25US 5,046,702 AKabushiki Kaisha Kambayashi Seisakujo · 1991