H01F 7/0252
Pm holding devices
Official title: {PM holding devices (H01F7/021, H01F7/0215, H01F7/0226 take precedence)}
H01F7/0252 (Pm holding devices) appears on 891 US grants and 1,046 published applications in this corpus.
Search patents in H01F- Granted patents
- 891
- Published applications
- 1,046
- Assignees
- 480
- Inventors
- 1,705
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 8 | 0 |
| 1994 | 7 | 0 |
| 1995 | 9 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 8 | 3 |
| 2002 | 11 | 10 |
| 2003 | 6 | 9 |
| 2004 | 9 | 8 |
| 2005 | 15 | 11 |
| 2006 | 11 | 14 |
| 2007 | 7 | 8 |
| 2008 | 4 | 17 |
| 2009 | 8 | 29 |
| 2010 | 19 | 24 |
| 2011 | 9 | 38 |
| 2012 | 18 | 65 |
| 2013 | 47 | 43 |
| 2014 | 33 | 53 |
| 2015 | 49 | 62 |
| 2016 | 39 | 59 |
| 2017 | 50 | 45 |
| 2018 | 44 | 55 |
| 2019 | 42 | 68 |
| 2020 | 46 | 73 |
| 2021 | 51 | 75 |
| 2022 | 52 | 60 |
| 2023 | 66 | 66 |
| 2024 | 76 | 49 |
| 2025 | 56 | 51 |
| 2026 | 23 | 51 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Token presentation system8 Sep 2026US 12,727,688 B1
- Accessory mounts25 Aug 2026US 12,716,690 B1Magne-Tech, LLC
- Rotating magnet assembly in a foldable device25 Aug 2026US 12,717,385 B2Microsoft Technology Licensing, LLC
- Magnetic systems incorporating electropermanent magnet arrays18 Aug 2026US 12,712,104 B2Apple Inc.
- Switchable magnetic apparatus with reduced switching force and methods thereof11 Aug 2026US 12,706,236 B2Lantha Tech Ltd.
- Systems and methods for deploying and retrieving magnetically coupled temporary wireline fiber for broadside wave detection8 Oct 2026US 2026/0309022 A1
- Modular pet leash1 Oct 2026US 2026/0293853 A1
- Separable fastening devices, systems, and methods1 Oct 2026US 2026/0294050 A1Patmos Enterprises, LLC
- Field configurable autonomous land surface craft1 Oct 2026US 2026/0296612 A1The United States of America as represented by the Secretary of the Navy
- Device and system for retrieving firearm shells1 Oct 2026US 2026/0302029 A1
Most cited
By later US patents
- Methods for forming anastomoses using magnetic force364US 6,352,543 B1Ventrica, Inc. · 2002
- Fitting device for accessory264US 5,367,891 AYugen Kaisha Furuyama Shouji · 1994
- Mechanical locking of floor panels with vertical snap folding225US 8,353,140 B2Välinge Innovation AB · 2013
- Accessory device for peek mode202US 8,264,310 B2Apple Inc. · 2012
- Mechanical locking of floor panels with vertical snap folding and an installation method to connect such panels189US 8,499,521 B2Välinge Innovation AB · 2013