H01F 7/066
Electromagnets with movable winding
Official title: {Electromagnets with movable winding}
H01F7/066 (Electromagnets with movable winding) appears on 210 US grants and 219 published applications in this corpus.
Search patents in H01F- Granted patents
- 210
- Published applications
- 219
- Assignees
- 190
- Inventors
- 550
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 4 |
| 2003 | 1 | 4 |
| 2004 | 9 | 14 |
| 2005 | 5 | 7 |
| 2006 | 5 | 8 |
| 2007 | 4 | 8 |
| 2008 | 7 | 13 |
| 2009 | 5 | 6 |
| 2010 | 10 | 9 |
| 2011 | 4 | 9 |
| 2012 | 8 | 9 |
| 2013 | 5 | 5 |
| 2014 | 3 | 3 |
| 2015 | 7 | 11 |
| 2016 | 5 | 9 |
| 2017 | 9 | 3 |
| 2018 | 7 | 5 |
| 2019 | 5 | 11 |
| 2020 | 9 | 12 |
| 2021 | 8 | 18 |
| 2022 | 13 | 17 |
| 2023 | 9 | 16 |
| 2024 | 15 | 7 |
| 2025 | 12 | 7 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lens driving device and camera module25 Aug 2026US 12,717,112 B2LG Innotek Co., Ltd.
- Optical driving mechanism14 Apr 2026US 12,603,207 B2Actutek Corporation
- Optical member driving mechanism with leading wire31 Mar 2026US 12,591,107 B2TDK Taiwan Corp.
- Magnetic movement using offset magnetic arrays with electromagnets10 Mar 2026US 12,570,484 B1US Positronix Inc.
- Optical system27 Jan 2026US 12,537,123 B2TDK Taiwan Corp.
- Magnetic attraction component and assembly method thereof, linear motor, camera, and electronic device9 Jul 2026US 2026/0196399 A1Huawei Technologies Co., Ltd.
- Setting tool18 Jun 2026US 2026/0166698 A1
- Emergency release device and emergency release structure comprising same21 May 2026US 2026/0142050 A1Korea Atomic Energy Research Institute
- Improved linear actuator5 Mar 2026US 2026/0066719 A1Tethr Limited
- Optical member driving device and projection display apparatus including the same27 Nov 2025US 2025/0362572 A1Panasonic Intellectual Property Management Co., Ltd.
Most cited
By later US patents
- Moving coil linear actuator with interleaved magnetic circuits111US 4,808,955 ABEI Electronics, Inc. · 1989
- Electroacoustic transducer85US 7,062,063 B2Sonion Horsens A/S · 2006
- Moving-coil haptic actuator for electronic devices81US 10,032,550 B1Apple Inc. · 2018
- Coil for an electroacoustic transducer80US 7,376,240 B2Sonion Horsens A/S · 2008
- Moving coil actuator utilizing flux-focused interleaved magnetic circuit73US 5,345,206 ABEI Electronics, Inc. · 1994