B23Q 3/1546
Using permanent magnets
Official title: {using permanent magnets}
B23Q3/1546 (Using permanent magnets) appears on 142 US grants and 89 published applications in this corpus.
Search patents in B23Q- Granted patents
- 142
- Published applications
- 89
- Assignees
- 91
- Inventors
- 236
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 4 | 2 |
| 2007 | 2 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 3 |
| 2011 | 2 | 4 |
| 2012 | 0 | 0 |
| 2013 | 3 | 5 |
| 2014 | 4 | 3 |
| 2015 | 5 | 8 |
| 2016 | 6 | 8 |
| 2017 | 3 | 1 |
| 2018 | 1 | 6 |
| 2019 | 7 | 2 |
| 2020 | 1 | 5 |
| 2021 | 5 | 9 |
| 2022 | 3 | 8 |
| 2023 | 9 | 4 |
| 2024 | 10 | 7 |
| 2025 | 4 | 4 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic coupling device7 Apr 2026US 12,597,544 B2Magswitch Automation Company
- Magnetic coupling device with at least one of a sensor arrangement and a degauss capability17 Feb 2026US 12,551,988 B2Magswitch Automation Company
- Magnetic coupling device9 Sep 2025US 12,412,689 B2Magswitch Automation Company
- Woodworking device accessories22 Jul 2025US 12,365,059 B2Magswitch Automation Company
- Portable meter for measuring a force generated by a magnetic apparatus11 Mar 2025US 12,248,036 B2S.P.D. S.P.A.
- Electrostatic chuck assembly and deposition apparatus including the same28 May 2026US 2026/0149393 A1Samsung Display Co., Ltd.
- Panel release device16 Apr 2026US 2026/0102862 A1Usun Technology Co., Ltd.
- Grinding processing system27 Nov 2025US 2025/0360590 A1Bando Kiko Co., Ltd.
- Magnetic coupling device9 Oct 2025US 2025/0316412 A1Magswitch Automation Company
- Magnetic chuck14 Aug 2025US 2025/0256369 A1SMC Corporation
Most cited
By later US patents
- Magnetic gripping apparatus having circuit for eliminating residual flux92US 4,956,625 ATecnomagnete S.p.A. · 1990
- Magnetic base86US 4,251,791 AKanetsu Kogyo Kabushiki Kaisha · 1981
- Switchable permanent magnetic device78US 6,707,360 B2The Aussie Kids Toy Company Pty Ltd. · 2004
- Switchable permanent magnetic device72US 7,012,495 B2The Aussie Kids Toy Company Pty Ltd. · 2006
- Magnetic tool and object holder64US 5,760,668 A1998