H01F 7/122
By permanent magnets
Official title: by permanent magnets {(H01F7/1615, H01F7/1646 take precedence)}
H01F7/122 (By permanent magnets) appears on 373 US grants and 251 published applications in this corpus.
Search patents in H01F- Granted patents
- 373
- Published applications
- 251
- Assignees
- 264
- Inventors
- 774
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 9 | 0 |
| 1982 | 6 | 0 |
| 1983 | 3 | 0 |
| 1984 | 8 | 0 |
| 1985 | 11 | 0 |
| 1986 | 3 | 0 |
| 1987 | 9 | 0 |
| 1988 | 6 | 0 |
| 1989 | 11 | 0 |
| 1990 | 8 | 0 |
| 1991 | 10 | 0 |
| 1992 | 14 | 0 |
| 1993 | 8 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 1 |
| 2002 | 6 | 4 |
| 2003 | 4 | 6 |
| 2004 | 5 | 11 |
| 2005 | 11 | 16 |
| 2006 | 10 | 12 |
| 2007 | 9 | 8 |
| 2008 | 5 | 14 |
| 2009 | 8 | 8 |
| 2010 | 4 | 4 |
| 2011 | 6 | 6 |
| 2012 | 7 | 6 |
| 2013 | 9 | 9 |
| 2014 | 6 | 8 |
| 2015 | 7 | 10 |
| 2016 | 17 | 13 |
| 2017 | 10 | 14 |
| 2018 | 9 | 10 |
| 2019 | 16 | 22 |
| 2020 | 10 | 12 |
| 2021 | 14 | 9 |
| 2022 | 13 | 16 |
| 2023 | 7 | 14 |
| 2024 | 14 | 11 |
| 2025 | 9 | 4 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic latching connector with electric unlatch12 May 2026US 12,626,848 B2Testron Corporation
- System for controlling a superconducting coil with a magnetic persistent current switch14 Apr 2026US 12,603,205 B2Koninklijke Philips N. V.
- Camera module and electronic device including the same30 Dec 2025US 12,510,805 B2Samsung Electronics Co., Ltd.
- Lens driving device18 Nov 2025US 12,474,538 B2Changzhou AAC Raytech Optronics Co., Ltd.
- Actuator device11 Nov 2025US 12,468,144 B2LG Innotek Co., Ltd.
- Linear vibration motor and method for manufacturing linear vibration motor21 May 2026US 2026/0142543 A1Murata Manufacturing Co., Ltd.
- Electromagnetic actuator system26 Mar 2026US 2026/0088204 A1Apple Inc.
- Actuator device29 Jan 2026US 2026/0029639 A1LG Innotek Co., Ltd.
- Vibration Motor11 Sep 2025US 2025/0284340 A1AAC Microtech (Changzhou) Co., Ltd.
- Mechanical locking of floor panels with vertical snap folding20 Mar 2025US 2025/0092688 A1Välinge Innovation AB
Most cited
By later US patents
- Force actuator with dual magnetic operation233US 5,896,076 A1999
- Mechanical locking of floor panels with vertical snap folding225US 8,353,140 B2Välinge Innovation AB · 2013
- Mechanical locking of floor panels with vertical snap folding and an installation method to connect such panels189US 8,499,521 B2Välinge Innovation AB · 2013
- Actuator145US 5,256,998 ATechnische Entwicklungen Dr. Becker GmbH · 1993
- Mechanical locking of floor panels with vertical snap folding144US 8,544,234 B2Välinge Innovation AB · 2013